diff --git a/src/hooks/common/useRoofFn.js b/src/hooks/common/useRoofFn.js
index 84416370..dc877788 100644
--- a/src/hooks/common/useRoofFn.js
+++ b/src/hooks/common/useRoofFn.js
@@ -15,10 +15,19 @@ export function useRoofFn() {
   const currentObject = useRecoilValue(currentObjectState)
 
   //면형상 선택 클릭시 지붕 패턴 입히기
-  function setSurfaceShapePattern(polygon, mode = 'onlyBorder', trestleMode = false, roofMaterial = selectedRoofMaterial) {
+  function setSurfaceShapePattern(polygon, mode = 'onlyBorder', trestleMode = false, roofMaterial = selectedRoofMaterial, isForceChange = false) {
     if (!polygon) {
       return
     }
+    if (isForceChange) {
+      if (polygon.roofMaterial) {
+        polygon.roofMaterial = null
+      }
+    }
+
+    if (polygon.roofMaterial) {
+      return
+    }
     const ratio = window.devicePixelRatio || 1
     const layout = roofMaterial.layout
 
diff --git a/src/hooks/module/useTrestle.js b/src/hooks/module/useTrestle.js
index 24541d22..5c1d7927 100644
--- a/src/hooks/module/useTrestle.js
+++ b/src/hooks/module/useTrestle.js
@@ -19,17 +19,33 @@ export const useTrestle = () => {
         canvas.remove(obj)
       }
     })
-
+    canvas.getObjects().forEach((obj) => {
+      if (obj.name === 'bracket') {
+        canvas.remove(obj)
+      }
+    })
     surfaces.forEach((surface) => {
       const parent = canvas.getObjects().find((obj) => obj.id === surface.parentId)
       const roofMaterialIndex = parent.roofMaterial.index
-      const construction = moduleSelectionData.roofConstructions.find((construction) => construction.roofIndex === roofMaterialIndex).construction
+      const construction = moduleSelectionData?.roofConstructions?.find((construction) => construction.roofIndex === roofMaterialIndex).construction
+      if (!construction) {
+        alert('앞에서 셋팅 안됨')
+        return
+      }
       let isEaveBar = construction.setupCover
+
       let isSnowGuard = construction.setupSnowCover
       const direction = parent.direction
-
       const rack = surface.trestleDetail.rack
-      let { rackQty, rackIntvlPct } = surface.trestleDetail
+      let { rackQty, rackIntvlPct, rackYn, cvrPlvrYn } = surface.trestleDetail
+      rackYn = 'N'
+      rackQty = 5
+      cvrPlvrYn = 'Y'
+
+      if (!rack) {
+        //25/01/16 기준 랙이 없는 경우는 그냥 안그려준다.
+        return
+      }
 
       const rackInfos = Object.keys(rack).map((key) => {
         return { key, value: rack[key] }
@@ -41,12 +57,16 @@ export const useTrestle = () => {
       const exposedBottomModules = [] // 아래 두면이 모두 노출 되어있는 경우
       const leftExposedHalfBottomModules = [] // 왼쪽 면만 노출되어있는 경우
       const rightExposedHalfBottomPoints = [] // 오른쪽 면만 노출되어 있는 경우
+      const leftExposedHalfTopModules = [] // 왼쪽 면만 노출되어 있는 경우
+      const rightExposedHalfTopPoints = [] // 오른쪽 면만 노출되어 있는 경우
       const modules = canvas.getObjects().filter((obj) => obj.name === POLYGON_TYPE.MODULE)
       modules.forEach((module) => {
         const { x, y } = module.getCenterPoint()
         const isExposedBottom = result.exposedBottomPoints.some((point) => Math.abs(point.x - x) < 2 && Math.abs(point.y - y) < 2)
         const isLeftExposedHalfBottom = result.leftExposedHalfBottomPoints.some((point) => Math.abs(point.x - x) < 2 && Math.abs(point.y - y) < 2)
         const isRightExposedHalfBottom = result.rightExposedHalfBottomPoints.some((point) => Math.abs(point.x - x) < 2 && Math.abs(point.y - y) < 2)
+        const isRightExposedHalfTop = result.rightExposedHalfTopPoints.some((point) => Math.abs(point.x - x) < 2 && Math.abs(point.y - y) < 2)
+        const isLeftExposedHalfTop = result.leftExposedHalfTopPoints.some((point) => Math.abs(point.x - x) < 2 && Math.abs(point.y - y) < 2)
         if (isExposedBottom) {
           exposedBottomModules.push(module)
         }
@@ -56,11 +76,24 @@ export const useTrestle = () => {
         if (isRightExposedHalfBottom) {
           rightExposedHalfBottomPoints.push(module)
         }
+        if (isRightExposedHalfTop) {
+          leftExposedHalfTopModules.push(module)
+        }
+        if (isLeftExposedHalfTop) {
+          rightExposedHalfTopPoints.push(module)
+        }
       })
 
+      // 4개중 한개라도 있는 경우 치조배치로 간주한다.
+      const isChidory =
+        leftExposedHalfBottomModules.length > 0 ||
+        rightExposedHalfBottomPoints.length > 0 ||
+        leftExposedHalfTopModules.length > 0 ||
+        rightExposedHalfTopPoints.length > 0
+
       canvas
         .getObjects()
-        .filter((obj) => obj.name === 'eaveBar')
+        .filter((obj) => ['eaveBar', 'halfEaveBar'].includes(obj.name) && obj.parent === surface)
         .forEach((obj) => {
           canvas.remove(obj)
         })
@@ -72,19 +105,84 @@ export const useTrestle = () => {
           const bottomPoints = findTopTwoPoints([...module.points], direction)
           if (!bottomPoints) return
           const eaveBar = new fabric.Line([bottomPoints[0].x, bottomPoints[0].y, bottomPoints[1].x, bottomPoints[1].y], {
+            parent: surface,
             name: 'eaveBar',
             stroke: 'blue',
             strokeWidth: 4,
             selectable: false,
+            parentId: module.id,
           })
           canvas.add(eaveBar)
           canvas.renderAll()
         })
+
+        if (isChidory && cvrPlvrYn === 'Y') {
+          leftExposedHalfBottomModules.forEach((module) => {
+            const bottomPoints = findTopTwoPoints([...module.points], direction)
+            let barPoints = []
+            //설치해야할 반처마커버 포인트를 방향에 따라 설정
+
+            if (direction === 'south') {
+              barPoints = [bottomPoints[0].x, bottomPoints[0].y, bottomPoints[1].x - module.width / 2, bottomPoints[1].y]
+            } else if (direction === 'north') {
+              barPoints = [bottomPoints[0].x + module.width / 2, bottomPoints[0].y, bottomPoints[1].x, bottomPoints[1].y]
+            } else if (direction === 'east') {
+              barPoints = [bottomPoints[0].x, bottomPoints[0].y, bottomPoints[1].x, bottomPoints[0].y - module.height / 2]
+            } else if (direction === 'west') {
+              barPoints = [bottomPoints[0].x, bottomPoints[0].y, bottomPoints[1].x, bottomPoints[1].y - module.height / 2]
+            }
+
+            if (!bottomPoints) return
+            const halfEaveBar = new fabric.Line(barPoints, {
+              parent: surface,
+              name: 'halfEaveBar',
+              stroke: 'blue',
+              strokeWidth: 4,
+              selectable: false,
+              parentId: module.id,
+            })
+            canvas.add(halfEaveBar)
+            canvas.renderAll()
+          })
+
+          rightExposedHalfBottomPoints.forEach((module) => {
+            const bottomPoints = findTopTwoPoints([...module.points], direction)
+            let barPoints = []
+            //설치해야할 반처마커버 포인트를 방향에 따라 설정
+
+            if (direction === 'south') {
+              barPoints = [bottomPoints[0].x + module.width / 2, bottomPoints[0].y, bottomPoints[1].x, bottomPoints[1].y]
+            } else if (direction === 'north') {
+              barPoints = [bottomPoints[0].x, bottomPoints[0].y, bottomPoints[0].x + module.width / 2, bottomPoints[1].y]
+            } else if (direction === 'east') {
+              barPoints = [bottomPoints[0].x, bottomPoints[1].y + module.height / 2, bottomPoints[1].x, bottomPoints[1].y]
+            } else if (direction === 'west') {
+              barPoints = [bottomPoints[0].x, bottomPoints[1].y - module.height / 2, bottomPoints[1].x, bottomPoints[1].y]
+            }
+
+            if (!bottomPoints) return
+            const halfEaveBar = new fabric.Line(barPoints, {
+              parent: surface,
+              name: 'halfEaveBar',
+              stroke: 'blue',
+              strokeWidth: 4,
+              selectable: false,
+              parentId: module.id,
+            })
+            canvas.add(halfEaveBar)
+            canvas.renderAll()
+          })
+        }
       }
+      const horizontal = ['south', 'north'].includes(direction) ? surface.trestleDetail.moduleIntvlHor : surface.trestleDetail.moduleIntvlVer
+
+      const vertical = ['south', 'north'].includes(direction) ? surface.trestleDetail.moduleIntvlVer : surface.trestleDetail.moduleIntvlHor
       // 가대 설치를 위한 가장 아래 모듈로부터 위로 몇단인지 계산
       // 오른쪽,왼쪽 둘 다 아래에 아무것도 없는, 처마 커버를 필요로 하는 모듈
       exposedBottomModules.forEach((module) => {
-        const { width, height } = module
+        let { width, height } = { ...module }
+        width = Math.floor(width)
+        height = Math.floor(height)
         let { x: startX, y: startY } = { ...module.getCenterPoint() }
         let { x, y } = { ...module.getCenterPoint() }
         //TODO : 방향별로 가대 설치해야함
@@ -99,7 +197,7 @@ export const useTrestle = () => {
         //우선 절반을 나눈 뒤 왼쪽부터 찾는다.
         while (hasNextModule) {
           //바로 위에 있는지 확인한다.
-          let nextModule = findNextModule({ x, y, width, height }, centerPoints, direction)
+          let nextModule = findNextModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
 
           if (nextModule) {
             // 바로 위 모듈을 찾는다.
@@ -109,10 +207,10 @@ export const useTrestle = () => {
           } else {
             // 바로 위가 없을 경우 먼저 왼쪽위가 있는지 확인 한다.
             if (findLeft) {
-              nextModule = findNextLeftModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextLeftModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findLeft = false
             } else {
-              nextModule = findNextRightModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextRightModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findLeft = true
             }
 
@@ -134,7 +232,7 @@ export const useTrestle = () => {
         // 오른쪽 찾는다.
         while (hasNextModule) {
           //바로 위에 있는지 확인한다.
-          let nextModule = findNextModule({ x, y, width, height }, centerPoints, direction)
+          let nextModule = findNextModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
 
           if (nextModule) {
             // 바로 위 모듈을 찾는다.
@@ -144,10 +242,10 @@ export const useTrestle = () => {
           } else {
             // 바로 위가 없을 경우 먼저 왼쪽위가 있는지 확인 한다.
             if (findRight) {
-              nextModule = findNextRightModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextRightModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findRight = false
             } else {
-              nextModule = findNextLeftModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextLeftModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findRight = true
             }
 
@@ -169,7 +267,7 @@ export const useTrestle = () => {
         // 센터 찾는다.
         while (hasNextModule) {
           //바로 위에 있는지 확인한다.
-          let nextModule = findNextModule({ x, y, width, height }, centerPoints, direction)
+          let nextModule = findNextModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
 
           if (nextModule) {
             // 바로 위 모듈을 찾는다.
@@ -196,13 +294,19 @@ export const useTrestle = () => {
           return rack.value.moduleRows === centerRows
         })?.value.racks
 
-        drawRacks(leftRacks, rackQty, rackIntvlPct, module, direction, 'L')
-        drawRacks(rightRacks, rackQty, rackIntvlPct, module, direction, 'R')
+        if (rackYn === 'Y') {
+          drawRacks(leftRacks, rackQty, rackIntvlPct, module, direction, 'L', rackYn)
+          drawRacks(rightRacks, rackQty, rackIntvlPct, module, direction, 'R', rackYn)
 
-        if (rackQty === 3) {
-          //rack 갯수가 3개인 경우는 중간렉도 추가해줘야함
-          drawRacks(centerRacks, rackQty, rackIntvlPct, module, direction, 'C')
+          if (rackQty === 3) {
+            //rack 갯수가 3개인 경우는 중간렉도 추가해줘야함
+            drawRacks(centerRacks, rackQty, rackIntvlPct, module, direction, 'C', rackYn)
+          } else if (rackQty === 4) {
+            drawRacks(leftRacks, rackQty, rackIntvlPct / 3, module, direction, 'L', rackYn)
+            drawRacks(rightRacks, rackQty, rackIntvlPct / 3, module, direction, 'R', rackYn)
+          }
         }
+        module.set({ leftRows, rightRows, centerRows })
       })
       // 왼쪽아래에 모듈이 없는 모듈들
       leftExposedHalfBottomModules.forEach((module) => {
@@ -218,7 +322,7 @@ export const useTrestle = () => {
         //우선 절반을 나눈 뒤 왼쪽부터 찾는다.
         while (hasNextModule) {
           //바로 위에 있는지 확인한다.
-          let nextModule = findNextModule({ x, y, width, height }, centerPoints, direction)
+          let nextModule = findNextModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
 
           if (nextModule) {
             // 바로 위 모듈을 찾는다.
@@ -228,10 +332,10 @@ export const useTrestle = () => {
           } else {
             // 바로 위가 없을 경우 먼저 왼쪽위가 있는지 확인 한다.
             if (findLeft) {
-              nextModule = findNextLeftModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextLeftModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findLeft = false
             } else {
-              nextModule = nextModule = findNextRightModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = nextModule = findNextRightModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findLeft = true
             }
 
@@ -251,7 +355,11 @@ export const useTrestle = () => {
           return rack.value.moduleRows === leftRows
         })?.value.racks
 
-        drawRacks(leftRacks, rackQty, rackIntvlPct, module, direction, 'L')
+        if (rackYn === 'Y') {
+          drawRacks(leftRacks, rackQty, rackIntvlPct, module, direction, 'L', rackYn)
+        }
+
+        module.set({ leftRows })
       })
       // 오른쪽 아래에 모듈이 없는 모듈들
       rightExposedHalfBottomPoints.forEach((module) => {
@@ -267,7 +375,7 @@ export const useTrestle = () => {
         // 오른쪽 찾는다.
         while (hasNextModule) {
           //바로 위에 있는지 확인한다.
-          let nextModule = findNextModule({ x, y, width, height }, centerPoints, direction)
+          let nextModule = findNextModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
 
           if (nextModule) {
             // 바로 위 모듈을 찾는다.
@@ -277,10 +385,10 @@ export const useTrestle = () => {
           } else {
             // 바로 위가 없을 경우 먼저 왼쪽위가 있는지 확인 한다.
             if (findRight) {
-              nextModule = findNextRightModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextRightModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findRight = false
             } else {
-              nextModule = findNextLeftModule({ x, y, width, height }, centerPoints, direction)
+              nextModule = findNextLeftModule({ x, y, width, height, horizontal, vertical }, centerPoints, direction)
               findRight = true
             }
 
@@ -300,46 +408,46 @@ export const useTrestle = () => {
           return rack.value.moduleRows === rightRows
         })?.value.racks
         // 해당 rack으로 그려준다.
+        if (rackYn === 'Y') {
+          drawRacks(rightRacks, rackQty, rackIntvlPct, module, direction, 'R', rackYn)
+        }
 
-        drawRacks(rightRacks, rackQty, rackIntvlPct, module, direction, 'R')
+        module.set({ rightRows })
       })
+
+      if (rackYn === 'N') {
+        // rack이 없을경우
+        installBracketWithOutRack(surface, exposedBottomModules, leftExposedHalfBottomModules, rightExposedHalfBottomPoints, isChidory)
+      } else if (rackYn === 'Y') {
+        installBracket(surface)
+      }
     })
-
-    /*switch (rackYn) {
-      case 'Y': {
-        // rack이 Y일 경우 rackQty가 필요함
-
-        break
-      }
-      case 'N': {
-        break
-      }
-    }*/
-    // 지지금구 설치
-    installBracket()
   }
 
   const findNextModule = (currentPoint, centerPoints, direction) => {
-    let { x, y, width, height } = currentPoint
-    width = Math.floor(width)
-    height = Math.floor(height)
+    let { x, y, width, height, horizontal, vertical } = { ...currentPoint }
+    width = width + horizontal
+    height = height + vertical
+
+    let maxX = 2 + horizontal * 3
+    let maxY = 2 + vertical * 3
 
     let result
     switch (direction) {
       case 'south': {
-        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y - height)) < 2)
+        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y - height)) < maxY)
         break
       }
       case 'north': {
-        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y + height)) < 2)
+        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y + height)) < maxY)
         break
       }
       case 'east': {
-        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - (x - width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - (x - width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
         break
       }
       case 'west': {
-        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - (x + width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+        result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - (x + width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
         break
       }
     }
@@ -348,16 +456,23 @@ export const useTrestle = () => {
   }
 
   const findNextLeftModule = (currentPoint, centerPoints, direction) => {
-    const { x, y, width, height } = currentPoint
+    let { x, y, width, height, horizontal, vertical } = { ...currentPoint }
+
     let result
     let topLeftPoint
+    let maxX = 2 + horizontal * 3
+    let maxY = 2 + vertical * 3
 
     switch (direction) {
       case 'south': {
+        width = width + horizontal
+        height = height + vertical
         topLeftPoint = { x: x - width / 2, y: y - height }
         break
       }
       case 'north': {
+        width = width + horizontal
+        height = height + vertical
         topLeftPoint = { x: x + width / 2, y: y + height }
         break
       }
@@ -371,15 +486,20 @@ export const useTrestle = () => {
       }
     }
 
-    result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - topLeftPoint.x) < 2 && Math.abs(centerPoint.y - topLeftPoint.y) < 2)
+    result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - topLeftPoint.x) < maxX && Math.abs(centerPoint.y - topLeftPoint.y) < maxY)
 
     return result
   }
   const findNextRightModule = (currentPoint, centerPoints, direction) => {
-    const { x, y, width, height } = currentPoint
+    let { x, y, width, height, horizontal, vertical } = { ...currentPoint }
+    width = width + horizontal
+    height = height + vertical
     let result
     let topRightPoint
 
+    let maxX = 2 + horizontal * 3
+    let maxY = 2 + vertical * 3
+
     switch (direction) {
       case 'south': {
         topRightPoint = { x: x + width / 2, y: y - height }
@@ -399,13 +519,16 @@ export const useTrestle = () => {
       }
     }
 
-    result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - topRightPoint.x) < 2 && Math.abs(centerPoint.y - topRightPoint.y) < 2)
+    result = centerPoints.find((centerPoint) => Math.abs(centerPoint.x - topRightPoint.x) < maxX && Math.abs(centerPoint.y - topRightPoint.y) < maxY)
 
     return result
   }
 
-  const drawRacks = (rackInfos, rackQty, rackIntvlPct, module, direction, l) => {
-    const { width, height } = module
+  const drawRacks = (rackInfos, rackQty, rackIntvlPct, module, direction, l, rackYn) => {
+    const { width, height, left, top, lastX, lastY } = module
+
+    const moduleLeft = lastX ?? left
+    const moduleTop = lastY ?? top
 
     let startPointX, startPointY
 
@@ -500,6 +623,7 @@ export const useTrestle = () => {
               offsetX: 0,
               offsetY: 0,
             },
+            parentId: module.id,
             supFitQty,
             supFitIntvlPct,
             rackLen,
@@ -530,11 +654,13 @@ export const useTrestle = () => {
               offsetX: 0,
               offsetY: 0,
             },
+            parentId: module.id,
             strokeWidth: 4,
             selectable: false,
             supFitQty,
             supFitIntvlPct,
             rackLen,
+            rackYn,
             rackId: itemId,
             direction: 'left',
           })
@@ -562,6 +688,7 @@ export const useTrestle = () => {
               offsetX: 0,
               offsetY: 0,
             },
+            parentId: module.id,
             strokeWidth: 4,
             selectable: false,
             supFitQty,
@@ -593,6 +720,7 @@ export const useTrestle = () => {
               offsetX: 0,
               offsetY: 0,
             },
+            parentId: module.id,
             strokeWidth: 4,
             selectable: false,
             supFitQty,
@@ -612,32 +740,40 @@ export const useTrestle = () => {
     }
   }
 
-  const installBracket = () => {
-    const racks = canvas.getObjects().filter((obj) => obj.name === 'rack')
-    // name이 bracket인 객체를 찾아서 삭제
-    canvas.getObjects().forEach((obj) => {
-      if (obj.name === 'bracket') {
-        canvas.remove(obj)
-      }
+  const installBracket = (surface) => {
+    const modules = surface.modules
+    const racks = []
+    modules.forEach((module) => {
+      canvas
+        .getObjects()
+        .filter((obj) => obj.name === 'rack')
+        .forEach((rack) => {
+          if (rack.parentId === module.id) {
+            canvas.remove(canvas.getObjects().filter((obj) => obj.name === 'bracket' && obj.parentId === rack.id))
+            racks.push(rack)
+          }
+        })
     })
+
     canvas.renderAll()
 
     racks.forEach((rack) => {
       const { x1, y1, x2, y2, direction, supFitQty, supFitIntvlPct, rackLen } = rack
 
-      const moduleLength = 10
+      const bracketLength = 10
 
       if (direction === 'top') {
         const result = getBracketPoints(supFitQty, supFitIntvlPct)
 
         result.forEach((percent) => {
           const bracket = new fabric.Rect({
-            left: x2 - moduleLength / 3,
+            left: x2 - bracketLength / 3,
             top: y2 + (rackLen / 10) * percent,
             fill: 'green',
             name: 'bracket',
-            width: moduleLength,
-            height: moduleLength,
+            parentId: rack.parentId,
+            width: bracketLength,
+            height: bracketLength,
             selectable: false,
           })
 
@@ -650,11 +786,12 @@ export const useTrestle = () => {
         result.forEach((percent) => {
           const bracket = new fabric.Rect({
             left: x2 + (rackLen / 10) * percent,
-            top: y2 - moduleLength / 3,
+            top: y2 - bracketLength / 3,
             fill: 'green',
             name: 'bracket',
-            width: moduleLength,
-            height: moduleLength,
+            parentId: rack.parentId,
+            width: bracketLength,
+            height: bracketLength,
             selectable: false,
           })
 
@@ -667,11 +804,12 @@ export const useTrestle = () => {
         result.forEach((percent) => {
           const bracket = new fabric.Rect({
             left: x2 - (rackLen / 10) * percent,
-            top: y2 - moduleLength / 3,
+            top: y2 - bracketLength / 3,
             fill: 'green',
+            parentId: rack.parentId,
             name: 'bracket',
-            width: moduleLength,
-            height: moduleLength,
+            width: bracketLength,
+            height: bracketLength,
             selectable: false,
           })
 
@@ -683,12 +821,13 @@ export const useTrestle = () => {
 
         result.forEach((percent) => {
           const bracket = new fabric.Rect({
-            left: x2 - moduleLength / 3,
+            left: x2 - bracketLength / 3,
             top: y2 - (rackLen / 10) * percent,
             fill: 'green',
             name: 'bracket',
-            width: moduleLength,
-            height: moduleLength,
+            parentId: rack.parentId,
+            width: bracketLength,
+            height: bracketLength,
             selectable: false,
           })
 
@@ -699,6 +838,153 @@ export const useTrestle = () => {
     })
   }
 
+  //랙 없음 인 경우 지지금구 설치
+  const installBracketWithOutRack = (surface, exposedBottomModules, leftExposedHalfBottomModules, rightExposedHalfBottomPoints, isChidory) => {
+    let { rackQty, rackIntvlPct, moduleIntvlHor, moduleIntvlVer } = surface.trestleDetail
+    rackQty = 3
+
+    canvas.renderAll()
+    exposedBottomModules.forEach((module) => {
+      canvas.renderAll()
+      drawBracketWithOutRack(module, rackIntvlPct, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      drawBracketWithOutRack(module, rackIntvlPct, module.rightRows + 1, 'R', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      if (!isChidory && rackQty === 3) {
+        // 치도리가 아니면서 갯수가 3개인 경우 센터도 설치 필요함
+        drawBracketWithOutRack(module, rackIntvlPct, module.centerRows + 1, 'C', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+
+      if (isChidory && rackQty === 3) {
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+      if (rackQty === 4) {
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.rightRows + 1, 'R', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+
+      if (rackQty === 5) {
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.rightRows + 1, 'R', surface.direction, moduleIntvlHor, moduleIntvlVer)
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.rightRows + 1, 'C', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+    })
+
+    leftExposedHalfBottomModules.forEach((module) => {
+      drawBracketWithOutRack(module, rackIntvlPct, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      if (rackQty === 4) {
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.leftRows + 1, 'L', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+    })
+
+    rightExposedHalfBottomPoints.forEach((module) => {
+      drawBracketWithOutRack(module, rackIntvlPct, module.rightRows + 1, 'R', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      if (rackQty === 4) {
+        drawBracketWithOutRack(module, rackIntvlPct / 3, module.rightRows + 1, 'R', surface.direction, moduleIntvlHor, moduleIntvlVer)
+      }
+    })
+  }
+
+  const drawBracketWithOutRack = (module, rackIntvlPct, count, l, direction, moduleIntvlHor, moduleIntvlVer) => {
+    let { width, height, left, top } = module
+    let startPointX
+    let startPointY
+
+    switch (l) {
+      case 'L': {
+        // 왼쪽부분 시작 점
+        if (direction === 'south') {
+          startPointX = left + width / rackIntvlPct
+          startPointY = top + height
+          break
+        } else if (direction === 'east') {
+          startPointX = left + width
+          startPointY = top + height - height / rackIntvlPct
+          break
+        } else if (direction === 'west') {
+          startPointX = left
+          startPointY = top + height / rackIntvlPct
+          break
+        } else if (direction === 'north') {
+          startPointX = left + width - width / rackIntvlPct
+          startPointY = top
+          break
+        }
+      }
+
+      case 'R': {
+        // 오른쪽부분 시작 점
+        if (direction === 'south') {
+          startPointX = left + width - width / rackIntvlPct
+          startPointY = top + height / 2 + height / 2
+          break
+        } else if (direction === 'east') {
+          startPointX = left + width
+          startPointY = top + height / rackIntvlPct
+          break
+        } else if (direction === 'west') {
+          startPointX = left
+          startPointY = top + height - height / rackIntvlPct
+          break
+        } else if (direction === 'north') {
+          startPointX = left + width / rackIntvlPct
+          startPointY = top
+          break
+        }
+      }
+      case 'C': {
+        // 중간부분 시작점
+        if (direction === 'south') {
+          const x = left + width / 2
+          const y = top + height / 2
+          startPointX = x
+          startPointY = y + height / 2
+          break
+        } else if (direction === 'east') {
+          const x = left + width
+          const y = top + height / 2
+          startPointX = x
+          startPointY = y
+          break
+        } else if (direction === 'west') {
+          const x = left
+          const y = top + height / 2
+          startPointX = x
+          startPointY = y
+          break
+        } else if (direction === 'north') {
+          const x = left + width / 2
+          const y = top
+          startPointX = x
+          startPointY = y
+          break
+        }
+      }
+    }
+
+    for (let i = 0; i < count; i++) {
+      const bracket = new fabric.Rect({
+        left: startPointX - 5,
+        top: startPointY - 5,
+        fill: 'green',
+        name: 'bracket',
+        parentId: module.id,
+        width: 10,
+        height: 10,
+        selectable: false,
+      })
+      canvas.add(bracket)
+      canvas.renderAll()
+      if (direction === 'south') {
+        startPointY -= height + moduleIntvlVer
+      } else if (direction === 'north') {
+        startPointY += height + moduleIntvlVer
+      } else if (direction === 'east') {
+        startPointX -= width + moduleIntvlHor
+      } else if (direction === 'west') {
+        startPointX += width + moduleIntvlHor
+      }
+    }
+  }
+
   const getBracketPoints = (n, percent) => {
     if (n < 2) {
       throw new Error('Number of points must be at least 2')
@@ -747,10 +1033,18 @@ export const useTrestle = () => {
     const direction = moduleSurface.direction
     const modules = moduleSurface.modules
 
+    const horizontal = ['south', 'north'].includes(direction)
+      ? moduleSurface.trestleDetail.moduleIntvlHor
+      : moduleSurface.trestleDetail.moduleIntvlVer
+
+    const vertical = ['south', 'north'].includes(direction) ? moduleSurface.trestleDetail.moduleIntvlVer : moduleSurface.trestleDetail.moduleIntvlHor
+
+    const maxX = 2 + horizontal * 3
+    const maxY = 2 + vertical * 3
     modules.forEach((module, index) => {
       module.tempIndex = index
       const { x, y } = module.getCenterPoint()
-      const { width, height } = module
+      const { width, height } = { ...module }
       centerPoints.push({ x, y, width: Math.floor(width), height: Math.floor(height), index })
     })
 
@@ -775,9 +1069,11 @@ export const useTrestle = () => {
     // 반노출 bottom면의 points
     let leftExposedHalfBottomPoints = []
     let rightExposedHalfBottomPoints = []
+    let leftExposedHalfTopPoints = []
+    let rightExposedHalfTopPoints = []
 
     centerPoints.forEach((centerPoint, index) => {
-      const { x, y, width, height } = centerPoint
+      let { x, y, width, height } = { ...centerPoint }
       // centerPoints중에 현재 centerPoint와 x값이 같고, y값이 y-height값과 같은 centerPoint가 있는지 확인
       let bottomCell
       let bottomLeftPoint
@@ -787,22 +1083,28 @@ export const useTrestle = () => {
 
       switch (direction) {
         case 'south':
-          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y + height)) < 2)
+          width = width + horizontal
+          height = height + vertical
+          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y + height)) < maxY)
           bottomLeftPoint = { x: x - width / 2, y: y + height }
           bottomRightPoint = { x: x + width / 2, y: y + height }
           break
         case 'north':
-          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y - height)) < 2)
+          width = width + horizontal
+          height = height + vertical
+          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y - height)) < maxY)
           bottomLeftPoint = { x: x + width / 2, y: y - height }
           bottomRightPoint = { x: x - width / 2, y: y - height }
           break
         case 'east':
-          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x + width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x + width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
+          width = width + horizontal
           bottomLeftPoint = { x: x + width, y: y + height / 2 }
           bottomRightPoint = { x: x + width, y: y - height / 2 }
           break
         case 'west':
-          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x - width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+          bottomCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x - width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
+          width = width + horizontal
           bottomLeftPoint = { x: x - width, y: y - height / 2 }
           bottomRightPoint = { x: x - width, y: y + height / 2 }
           break
@@ -814,10 +1116,10 @@ export const useTrestle = () => {
 
       // 바로 아래에 셀이 없는 경우 물떼세 배치가 왼쪽 되어있는 셀을 찾는다.
       leftBottomCnt = centerPoints.filter(
-        (centerPoint) => Math.abs(centerPoint.x - bottomLeftPoint.x) < 2 && Math.abs(centerPoint.y - bottomLeftPoint.y) < 2,
+        (centerPoint) => Math.abs(centerPoint.x - bottomLeftPoint.x) < maxX && Math.abs(centerPoint.y - bottomLeftPoint.y) < maxY,
       ).length
       rightBottomCnt = centerPoints.filter(
-        (centerPoint) => Math.abs(centerPoint.x - bottomRightPoint.x) < 2 && Math.abs(centerPoint.y - bottomRightPoint.y) < 2,
+        (centerPoint) => Math.abs(centerPoint.x - bottomRightPoint.x) < maxX && Math.abs(centerPoint.y - bottomRightPoint.y) < maxY,
       ).length
 
       if (leftBottomCnt + rightBottomCnt === 1) {
@@ -835,7 +1137,7 @@ export const useTrestle = () => {
     // 노출상면 및 접면 체크
 
     centerPoints.forEach((centerPoint, index) => {
-      const { x, y, width, height } = centerPoint
+      let { x, y, width, height } = { ...centerPoint }
 
       let topCell
       let topLeftPoint
@@ -845,22 +1147,27 @@ export const useTrestle = () => {
 
       switch (direction) {
         case 'south':
-          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y - height)) < 2)
+          width = width + horizontal
+          height = height + vertical
+          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y - height)) < maxY)
           topLeftPoint = { x: x - width / 2, y: y - height }
           topRightPoint = { x: x + width / 2, y: y - height }
           break
         case 'north':
-          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < 2 && Math.abs(centerPoint.y - (y + height)) < 2)
+          height = height + vertical
+          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - x) < maxX && Math.abs(centerPoint.y - (y + height)) < maxY)
           topLeftPoint = { x: x + width / 2, y: y + height }
           topRightPoint = { x: x - width / 2, y: y + height }
           break
         case 'east':
-          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x - width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+          width = width + horizontal
+          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x - width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
           topLeftPoint = { x: x - width, y: y + height / 2 }
           topRightPoint = { x: x - width, y: y - height / 2 }
           break
         case 'west':
-          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x + width)) < 2 && Math.abs(centerPoint.y - y) < 2)
+          width = width + horizontal
+          topCell = centerPoints.filter((centerPoint) => Math.abs(centerPoint.x - (x + width)) < maxX && Math.abs(centerPoint.y - y) < maxY)
           topLeftPoint = { x: x + width, y: y - height / 2 }
           topRightPoint = { x: x + width, y: y + height / 2 }
           break
@@ -872,10 +1179,10 @@ export const useTrestle = () => {
       }
 
       leftTopCnt = centerPoints.filter(
-        (centerPoint) => Math.abs(centerPoint.x - topLeftPoint.x) < 2 && Math.abs(centerPoint.y - topLeftPoint.y) < 2,
+        (centerPoint) => Math.abs(centerPoint.x - topLeftPoint.x) < maxX && Math.abs(centerPoint.y - topLeftPoint.y) < maxY,
       ).length
       rightTopCnt = centerPoints.filter(
-        (centerPoint) => Math.abs(centerPoint.x - topRightPoint.x) < 2 && Math.abs(centerPoint.y - topRightPoint.y) < 2,
+        (centerPoint) => Math.abs(centerPoint.x - topRightPoint.x) < maxX && Math.abs(centerPoint.y - topRightPoint.y) < maxY,
       ).length
 
       if (leftTopCnt + rightTopCnt === 2) {
@@ -886,6 +1193,12 @@ export const useTrestle = () => {
       if (leftTopCnt + rightTopCnt === 1) {
         exposedHalfTop++
         halfTouchDimension++
+        if (leftTopCnt === 1) {
+          rightExposedHalfTopPoints.push(centerPoint)
+        }
+        if (rightTopCnt === 1) {
+          leftExposedHalfTopPoints.push(centerPoint)
+        }
         return
       }
       if (leftTopCnt + rightTopCnt === 0) {
@@ -894,10 +1207,6 @@ export const useTrestle = () => {
     })
     // 완전 노출 하면 계산
 
-    /*const cells = canvas.getObjects().filter((obj) => polygon.id === obj.parentId)
-    const points = cells.map((cell) => {
-      return cell.getCenterPoint()
-    })*/
     const groupPoints = groupCoordinates(centerPoints, modules[0], direction)
 
     groupPoints.forEach((group) => {
@@ -937,6 +1246,8 @@ export const useTrestle = () => {
       exposedBottomPoints,
       leftExposedHalfBottomPoints,
       rightExposedHalfBottomPoints,
+      leftExposedHalfTopPoints,
+      rightExposedHalfTopPoints,
       centerPoints,
     }
   }