diff --git a/B06_Section/B06_Section_Cross_Refresh.ts b/B06_Section/B06_Section_Cross_Refresh.ts
index 673e6c6a0..be4ad875e 100644
--- a/B06_Section/B06_Section_Cross_Refresh.ts
+++ b/B06_Section/B06_Section_Cross_Refresh.ts
@@ -56,6 +56,7 @@ import { readAlignment, toDesignProfile } from "../B05_Profile/logic/B05_Profile
 import { useStationKeys } from "./B06_Section_Station_Keys";
 import { hasStaleDesigns } from "./B06_Section_UI_Section_Common";
 import { applyStructureAreaRows, structureAreaRows } from "./B06_Section_Structure_Layouts";
+import { withPipeOptions } from "./B06_Section_Section_Adjusts";
 
 /** 계획선 편집 델타 — B05 `AlignmentEdits`와 저장분 `profile_alignment.edits`가 같은 모양이다. */
 export interface CrossRefreshEdits {
@@ -179,6 +180,7 @@ export async function refreshCrossDesigns(input: CrossRefreshInput): Promise<num
   const sections = input.detail.cross_sections;
   if (sections.length && sections.every((section) => section.preview)) return [];
   useStationKeys(input.projectId, input.routeId, input.detail); // 세션 고침을 이 측점 목록으로 읽음(344-3)
+  await withPipeOptions(input.detail, input.projectId); // 관 옵션을 고친 뒤도 면적이 따라옴(387-4b)
   const before = new Map(sections.map((section) => [section, JSON.stringify(section.design)]));
   if (!refreshLocally(input)) await refreshFromServer(input);
   // 구조물이 선 측점은 폐회로 면적이 정본이다 — **이 자리 한 곳**에서 늘 다시 얹는다(387-4 · 카드 그리기는
diff --git a/B06_Section/B06_Section_Section_Adjusts.ts b/B06_Section/B06_Section_Section_Adjusts.ts
index 81559469d..e6e4365d7 100644
--- a/B06_Section/B06_Section_Section_Adjusts.ts
+++ b/B06_Section/B06_Section_Section_Adjusts.ts
@@ -5,6 +5,11 @@
  * 조정창(`_UI_Page_Station_Controls` · `_Ford_Controls` · `_Span_Control`)이 고칠 때 캐시에 얹는 것과 같은
  * 칸 · 같은 꼴. 예전에는 고칠 때만 얹어 새로고침 · B05 만 연 페이지는 세션 값을 몰랐음 — 카드 그리기가 면적을
  * 고쳐 들어 B06 을 연 뒤에만 면적이 바뀜(B05 만 연 면적 ≠ B06). 조정창은 세션 → 설계 순으로 읽으니 겹쳐도 같음.
+ *
+ * 관 옵션(폼 칸 · 관 초안 ?? 저장 관)의 조정값 몫도 여기서(387-4b · `layPipeOptions`) — 관 벽 높이 · 형태(h · m) ·
+ * 흙막이 n 단(h · m · 구간). 예전에는 B06 보기가 열릴 때 폼이 되보내야만 얹혀 B05 만 연 면적이 달랐음.
+ * 형상(관 세트 · 흙막이 세트 · 도수로 · 세월교 · BOX 제원)은 형상 얹기(`attachShapes`)가 이미 함.
+ * 같은 규칙 = `B06_Section_UI_Page_Pipe_Options`(폼을 고친 그 자리 즉시 반영 몫).
  * ========================================================================== */
 
 import { readState } from "../A00_Common/b_page_state";
@@ -13,6 +18,10 @@ import { DEFAULT_BASIN_ADJUST, ZERO_ADJUST } from "./B06_Section_UI_Cross_Culver
 import type { WallAdjust } from "./B06_Section_UI_Cross_Culvert_Types";
 import { fordAdjustOf } from "./B06_Section_UI_Cross_Ford_Geom";
 import { DEFAULT_BOX_SIDE_ADJUST } from "./B06_Section_UI_Cross_Box_Geom";
+import { PIPE_MATCH_M } from "../A00_Common/design/design_selection";
+import { applySpanPatch, WALL_MIN_PURE_HEIGHT_M } from "./logic/B06_Section_UI_Cross_Culvert_Const";
+import { tierSpanOf } from "./B06_Section_UI_Cross_Culvert_Wire";
+import { computeStoredLayouts } from "./B06_Section_Structure_Layouts";
 
 type Cells = Record<string, unknown>;
 type Obj = Record<string, unknown>;
@@ -81,3 +90,114 @@ export function withDraftAdjusts(
       };
   }
 }
+
+/** 관 옵션 조정값 몫 얹기(387-4b) — 관 초안 ?? 저장 관(페이지 자료 줄). 가게 · 자료 줄은 부를 때 늦게 불러옴 —
+ *  이 파일을 끄는 시험 · 묶음이 그 줄기(fetch · 가게)를 안 끌게. 못 받으면 그대로. */
+export async function withPipeOptions(
+  detail: SectionDetailResponse,
+  projectId: string,
+): Promise<void> {
+  const pipes = await import("../B05_Profile/B05_Profile_Api_Pipes_Draft")
+    .then(
+      async ({ readPendingPipes }) =>
+        readPendingPipes(projectId) ??
+        (await import("../A00_Common/design/design_page_data"))
+          .pagePipes(projectId)
+          .then((res) => res.pipe_points),
+    )
+    .catch(() => null);
+  if (pipes) layPipeOptions(detail, pipes as OptionPipe[]);
+}
+
+/** 관 하나 — 자리 · 폼 칸(관 초안 · 저장 관 `pipe_points` 같은 꼴). */
+export interface OptionPipe {
+  chainage_m: number;
+  options?: Record<string, unknown> | null;
+}
+
+const isDefault = (a: WallAdjust): boolean =>
+  Math.abs(a.x) < 1e-9 && a.d == null && a.h == null && a.m == null;
+const round1 = (value: number): number => Math.round(value * 10) / 10;
+
+/** 조정창 `update` 와 같은 꼴 — x · d 는 그대로 · h · m 만(폼 한 칸이 주인 · 빈 칸 = 자동 null). */
+function setWall(design: CrossDesign, role: string, h: number | null, m: string | null): void {
+  const current = { ...ZERO_ADJUST, ...(design.revet_adjust?.[role] ?? {}) } as WallAdjust;
+  const next: WallAdjust = { ...current, h: h === null ? null : round1(h), m };
+  const bucket = { ...(design.revet_adjust ?? {}) };
+  if (isDefault(next)) delete bucket[role];
+  else bucket[role] = next;
+  design.revet_adjust = bucket;
+}
+
+/** 관 옵션의 조정값 몫을 상세에 얹음(폼 칸 전부 = 되보내기와 같은 규칙) — 같은 값이면 그대로. */
+export function layPipeOptions(
+  detail: SectionDetailResponse,
+  pipes: ReadonlyArray<OptionPipe>,
+): void {
+  const sections = detail.cross_sections;
+  for (const pipe of pipes) {
+    const options = pipe.options;
+    if (!options) continue;
+    const near = (at: number): boolean => Math.abs(at - pipe.chainage_m) < PIPE_MATCH_M;
+    // 물넘이포장 = 제원만(66-2) · 벽 없음
+    if (sections.some((s) => s.ford_pavement && near(s.ford_pavement.chainage_m ?? s.chainage_m)))
+      continue;
+    const owner = sections.find((s) => near(s.chainage_m));
+    const culvert = owner?.culvert;
+    const design = owner?.design;
+    if (!owner || !culvert || !design) continue;
+    const num = (key: string): number | undefined => {
+      const value = Number(options[key]);
+      return Number.isFinite(value) ? value : undefined;
+    };
+    for (const role of ["inlet", "outlet"] as const) {
+      const form = options[`${role}_revet_form`];
+      setWall(
+        design,
+        role,
+        num(`${role}_revet_height_m`) ?? null,
+        typeof form === "string" ? form : null,
+      );
+    }
+    if (culvert.hidden_pipe && !owner.ford && !owner.box) continue;
+    // 흙막이 n 단 = 지형이 세운 유출 다단(`pipeExtraCount` 와 같은 셈)
+    const outlet = design.extra_wall_counts?.outlet ?? 0;
+    const probe = {
+      ...owner,
+      design: { ...design, extra_wall_counts: { basin: 0, ...design.extra_wall_counts, outlet } },
+    };
+    const tiers = outlet
+      ? (computeStoredLayouts(probe, sections)?.culvert?.extraWalls.length ?? outlet)
+      : 0;
+    for (let n = 1; n <= tiers; n++) {
+      const role = `extra${n - 1}`;
+      const value = (item: string): number | undefined => {
+        const raw = options[`soil_add_${n}_${item}`];
+        return raw === undefined || raw === "" || !Number.isFinite(Number(raw))
+          ? undefined
+          : Number(raw);
+      };
+      const form = options[`soil_add_${n}_form`];
+      const height = value("height");
+      setWall(
+        design,
+        role,
+        height === undefined ? null : Number(Math.max(height, WALL_MIN_PURE_HEIGHT_M).toFixed(1)),
+        typeof form === "string" && form ? form : null,
+      );
+      const span = { lengthM: value("length"), beforeM: value("before"), afterM: value("after") };
+      if (Object.values(span).every((v) => v === undefined)) continue;
+      const at = tierSpanOf(owner, role);
+      const current = {
+        lengthM: Math.round((at.beforeM + at.afterM) * 10) / 10,
+        beforeM: Math.round(at.beforeM * 10) / 10,
+        afterM: Math.round(at.afterM * 10) / 10,
+      };
+      const next = applySpanPatch(current, span);
+      design.extra_spans = {
+        ...(design.extra_spans ?? {}),
+        [role]: { length_m: next.lengthM, before_m: next.beforeM, after_m: next.afterM },
+      };
+    }
+  }
+}
diff --git a/B06_Section/B06_Section_Section_Store.ts b/B06_Section/B06_Section_Section_Store.ts
index 28318c965..1e4cfc952 100644
--- a/B06_Section/B06_Section_Section_Store.ts
+++ b/B06_Section/B06_Section_Section_Store.ts
@@ -27,7 +27,7 @@ import {
   withDraftStations,
 } from "./B06_Section_Section_Drafts";
 import { applyStructureAreaRows, structureAreaRows } from "./B06_Section_Structure_Layouts";
-import { withDraftAdjusts } from "./B06_Section_Section_Adjusts";
+import { withDraftAdjusts, withPipeOptions } from "./B06_Section_Section_Adjusts";
 import type { CrossSectionPatch, SectionDetailResponse } from "./B06_Section_Api_Fetch";
 import { forgetCanon, keepCanon, sessionDetail } from "./B06_Section_Section_Canon";
 import { fetchSectionDetail, saveSections } from "./B06_Section_Api_Fetch";
@@ -73,6 +73,7 @@ async function withDraftWalls(
   await withDraftStations(detail, projectId, routeId); // 옛 자리 숨김 · 새 자리 미리 뜬 횡단(273-2)
   await withDraftShapes(detail, projectId);
   withDraftAdjusts(detail, projectId, routeId); // 저장 안 한 조정창 4축 · 구간 · 형식(387-4 · B05 만 열어도)
+  await withPipeOptions(detail, projectId); // 관 옵션 벽 높이 · 형태 · 흙막이 단(387-4b)
   return withStructureAreas(detail);
 }
 
diff --git a/resources/tester/helper_387_4b_pipe_options.cjs b/resources/tester/helper_387_4b_pipe_options.cjs
new file mode 100644
index 000000000..20a705a44
--- /dev/null
+++ b/resources/tester/helper_387_4b_pipe_options.cjs
@@ -0,0 +1,144 @@
+/* 387-4b 헬퍼 — 관 옵션 → 횡단 조정값: 상세 가게 얹기(`layPipeOptions` · B05 만 연 페이지) = B06 폼 되보내기
+ * (`applyPipeOptionsToCache` · 조정창 흉내 = 캐시에 같은 칸으로 씀)인지 · 옵션을 바꿔도 같은지 · 면적으로 견줌.
+ * 짝 = `test_387_4b_pipe_options.py`.
+ */
+const fs = require("fs");
+const path = require("path");
+const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
+
+const ROOT = path.join(__dirname, "..", "..");
+const cache = new Map();
+const STUBS = { "@ui/ui_template_toast": { showToast: () => undefined } };
+
+function loadTs(file) {
+  const full = path.resolve(file);
+  if (cache.has(full)) return cache.get(full);
+  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
+    compilerOptions: {
+      module: ts.ModuleKind.CommonJS,
+      target: ts.ScriptTarget.ES2020,
+      esModuleInterop: true,
+    },
+  }).outputText;
+  const box = { exports: {} };
+  cache.set(full, box.exports);
+  const localRequire = (request) => {
+    if (CATALOG.isCatalogRequest(request)) return CATALOG;
+    if (STUBS[request]) return STUBS[request];
+    const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
+    for (const [prefix, dir] of Object.entries(alias))
+      if (request.startsWith(prefix))
+        return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
+    return loadTs(resolve(path.join(path.dirname(full), request)));
+  };
+  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
+  cache.set(full, box.exports);
+  return box.exports;
+}
+const resolve = (base) =>
+  [base, `${base}.ts`, path.join(base, "index.ts")].find(
+    (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
+  ) ?? `${base}.ts`;
+
+function memoryStorage() {
+  const map = new Map();
+  return {
+    getItem: (k) => (map.has(k) ? map.get(k) : null),
+    setItem: (k, v) => map.set(k, String(v)),
+    removeItem: (k) => map.delete(k),
+    key: (i) => [...map.keys()][i] ?? null,
+    get length() {
+      return map.size;
+    },
+  };
+}
+globalThis.window = { sessionStorage: memoryStorage(), localStorage: memoryStorage() };
+
+const B06 = (f) => path.join(ROOT, "B06_Section", `${f}.ts`);
+const { structureAreaRows, computeStoredLayouts } = loadTs(B06("B06_Section_Structure_Layouts"));
+const { layPipeOptions } = loadTs(B06("B06_Section_Section_Adjusts"));
+const { applyPipeOptionsToCache } = loadTs(B06("B06_Section_UI_Page_Pipe_Options"));
+const { ZERO_ADJUST } = loadTs(B06("B06_Section_UI_Cross_Culvert_Types"));
+
+const fresh = () =>
+  JSON.parse(fs.readFileSync(path.join(__dirname, "fixtures", "b06_186_1_pipe_292.json"), "utf8"))
+    .cross_sections;
+const areaOf = (sections) => {
+  const s = sections.find((x) => x.culvert);
+  const row = structureAreaRows(sections).find((r) => r.chainage_m === s.chainage_m);
+  return [row?.cut_area_m2 ?? null, row?.fill_area_m2 ?? null, s.design.revet_adjust ?? null];
+};
+
+/** B06 길 — 조정창 흉내(세션 없음 · 캐시 칸에 같은 꼴로 씀 · `storeAdjust` 규칙). */
+function b06(sections, options, extra = 0) {
+  const owner = sections.find((x) => x.culvert);
+  owner.design.extra_wall_counts = { outlet: extra, basin: 0 };
+  const adjustFor = (section, role) => ({
+    ...ZERO_ADJUST,
+    ...(section.design.revet_adjust?.[role] ?? {}),
+  });
+  const round1 = (v) => Math.round(v * 10) / 10;
+  const ctx = {
+    detail: () => ({ cross_sections: sections }),
+    ford: {},
+    box: {},
+    revetOffset: {
+      adjustFor,
+      update: (at, role, patch) => {
+        const section = sections.find((x) => Math.abs(x.chainage_m - at) < 0.01);
+        const cur = adjustFor(section, role);
+        const next = {
+          ...cur,
+          h: patch.h === undefined ? cur.h : patch.h === null ? null : round1(patch.h),
+          m: patch.m === undefined ? cur.m : patch.m,
+        };
+        const bucket = { ...(section.design.revet_adjust ?? {}) };
+        const dflt = Math.abs(next.x) < 1e-9 && next.d == null && next.h == null && next.m == null;
+        if (dflt) delete bucket[role];
+        else bucket[role] = next;
+        section.design.revet_adjust = bucket;
+      },
+    },
+    soilTiers: () => {
+      const probe = { ...owner, design: { ...owner.design } };
+      return extra
+        ? (computeStoredLayouts(probe, sections)?.culvert?.extraWalls.length ?? extra)
+        : 0;
+    },
+    overrideOptions: () => undefined,
+    refreshCard: () => undefined,
+  };
+  applyPipeOptionsToCache(ctx, owner.chainage_m, options, true);
+  return areaOf(sections);
+}
+
+/** 상세 가게 길(B05 만 연 페이지) — 관 초안 · 저장 관의 폼 칸 그대로. */
+function store(sections, options, extra = 0) {
+  const owner = sections.find((x) => x.culvert);
+  owner.design.extra_wall_counts = { outlet: extra, basin: 0 };
+  layPipeOptions({ cross_sections: sections }, [{ chainage_m: owner.chainage_m, options }]);
+  return areaOf(sections);
+}
+
+const at = fresh().find((x) => x.culvert).chainage_m;
+const first = {
+  inlet_revet_height_m: 1.5,
+  inlet_revet_form: "돌쌓기(찰)",
+  outlet_revet_height_m: 1.5,
+  outlet_revet_form: "돌쌓기(찰)",
+};
+const changed = { ...first, outlet_revet_height_m: 2.4, outlet_revet_form: "옹벽" };
+const out = { at, none: areaOf(fresh()) };
+for (const [name, options] of Object.entries({ first, changed })) {
+  out[name] = { b06: b06(fresh(), options), store: store(fresh(), options) };
+}
+// 흙막이 단(soil_add) — 유출 다단 두 단 · 높이 · 형태
+const tiers = {
+  ...first,
+  soil_add_1_height: 1.2,
+  soil_add_1_form: "돌쌓기(찰)",
+  soil_add_2_height: 0.05,
+};
+out.tiers = { b06: b06(fresh(), tiers, 2), store: store(fresh(), tiers, 2) };
+process.stdout.write(JSON.stringify(out));
diff --git a/resources/tester/test_387_4b_pipe_options.py b/resources/tester/test_387_4b_pipe_options.py
new file mode 100644
index 000000000..1eb964b7a
--- /dev/null
+++ b/resources/tester/test_387_4b_pipe_options.py
@@ -0,0 +1,49 @@
+"""387-4b 관 옵션 → 횡단 조정값을 상세 가게가 얹음 — B05 만 연 면적 = B06 연 뒤 면적(관 옵션을 바꿔도).
+
+· 관 벽 높이 · 형태(조정 h · m) · 흙막이 n 단(h · m)을 상세 가게(`layPipeOptions`)가 얹은 값 = B06 폼 되보내기
+  (`applyPipeOptionsToCache`)가 얹은 값 · 구조물 면적도 같음
+· 부르는 곳 = 상세 가게 읽기(새로고침 · 처음 열기) + 다시 셈 창구(관 옵션을 고친 뒤 묶음 cross)
+
+./venv/Scripts/python.exe -m pytest resources/tester/test_387_4b_pipe_options.py -q
+"""
+
+from __future__ import annotations
+
+import json
+import subprocess
+from pathlib import Path
+
+import pytest
+
+ROOT = Path(__file__).resolve().parents[2]
+HELPER = Path(__file__).parent / "helper_387_4b_pipe_options.cjs"
+
+
+@pytest.fixture(scope="module")
+def out() -> dict:
+    done = subprocess.run(  # noqa: S603 — 고정 실행 파일
+        ["node", str(HELPER)], cwd=str(ROOT), capture_output=True, text=True, encoding="utf-8"
+    )
+    assert done.returncode == 0, done.stderr
+    return json.loads(done.stdout)
+
+
+@pytest.mark.parametrize("case", ["first", "changed", "tiers"])
+def test_상세_가게_얹기_B06_되보내기와_같음(out: dict, case: str) -> None:
+    b06, store = out[case]["b06"], out[case]["store"]
+    assert store[2] == b06[2]  # 조정값 칸 그대로
+    assert store[0] == pytest.approx(b06[0], abs=0.01) and store[1] == pytest.approx(
+        b06[1], abs=0.01
+    )
+
+
+def test_옵션을_바꾸면_면적이_따라옴(out: dict) -> None:
+    assert out["first"]["store"][0] != out["none"][0]
+    assert out["changed"]["store"][0] != out["first"]["store"][0]
+
+
+def test_부르는_곳() -> None:
+    store = (ROOT / "B06_Section/B06_Section_Section_Store.ts").read_text(encoding="utf-8")
+    refresh = (ROOT / "B06_Section/B06_Section_Cross_Refresh.ts").read_text(encoding="utf-8")
+    assert "await withPipeOptions(detail, projectId);" in store
+    assert "await withPipeOptions(input.detail, input.projectId);" in refresh