diff --git a/src/components/floor-plan/modal/circuitTrestle/step/type/PassivityCircuitAllocation.jsx b/src/components/floor-plan/modal/circuitTrestle/step/type/PassivityCircuitAllocation.jsx
index 71f2ce17..962830c0 100644
--- a/src/components/floor-plan/modal/circuitTrestle/step/type/PassivityCircuitAllocation.jsx
+++ b/src/components/floor-plan/modal/circuitTrestle/step/type/PassivityCircuitAllocation.jsx
@@ -180,7 +180,6 @@ export default function PassivityCircuitAllocation(props) {
           .filter((obj) => obj.name === POLYGON_TYPE.MODULE && obj.pcs && obj.pcs.id === selectedPcs.id)
         // 1. 북면모듈, 북면외모듈 혼합 여부 체크
         const targetModuleInfos = canvas.getObjects().filter((obj) => obj.name === POLYGON_TYPE.MODULE && targetModules.includes(obj.id))
-        debugger
         const newTargetModuleGroup = [...new Set(targetModuleInfos.concat(originHaveThisPcsModules).map((obj) => obj.moduleInfo.northModuleYn))]
 
         if (newTargetModuleGroup.length > 1) {
diff --git a/src/hooks/module/useTrestle.js b/src/hooks/module/useTrestle.js
index 81a96a2f..71ee6123 100644
--- a/src/hooks/module/useTrestle.js
+++ b/src/hooks/module/useTrestle.js
@@ -2499,8 +2499,11 @@ export const useTrestle = () => {
     })
   }
 
-  function isPointInRect(rect, point) {
-    return point.x >= rect.x && point.x <= rect.x + rect.width && point.y >= rect.y && point.y <= rect.y + rect.height
+  // [DBL-CABLE-EPS 2026-07-10] 좌표가 소수점 2자리 반올림이라 千鳥 이웃 위치에 ±0.02 오차 누적 →
+  // 경계에 아슬아슬 걸친 이웃이 밖으로 판정되어 회로가 분리되고 유령 케이블(dblCblTotCnt) 1 발생.
+  // ε=0.5 로 반올림 오차 흡수(매칭 tolerance 0.5 기준). 남/북 fallback 에도 이 헬퍼 공유 사용.
+  function isPointInRect(rect, point, eps = 0.5) {
+    return point.x >= rect.x - eps && point.x <= rect.x + rect.width + eps && point.y >= rect.y - eps && point.y <= rect.y + rect.height + eps
   }
 
   // 25-04-02 추가
@@ -3388,8 +3391,8 @@ export const useTrestle = () => {
       const modules = surface.modules
       // 1. 현재 surface의 모듈들을 그룹화
       const groupInSurface = groupPoints(modules, surface)
-
-      cnt += countMatchingCircuitNumbers(groupInSurface)
+      const surfaceCnt = countMatchingCircuitNumbers(groupInSurface)
+      cnt += surfaceCnt
     })
 
     const groupByCircuitAndSurfaceCnt = groupByCircuitAndSurface(modules)