diff --git a/M01_MasterData/M01_MasterData_UI_Combo.ts b/M01_MasterData/M01_MasterData_UI_Combo.ts
index fa94820a..9eb01737 100644
--- a/M01_MasterData/M01_MasterData_UI_Combo.ts
+++ b/M01_MasterData/M01_MasterData_UI_Combo.ts
@@ -238,7 +238,7 @@ export function mountM01Combo(
         memo.input.value = row.메모 ?? "";
         memo.input.addEventListener("input", () => (row.메모 = memo.input.value || null));
         const name = el("button", {
-          className: "ui-btn ui-btn--ghost",
+          className: "ui-btn ui-btn--ghost ui-btn--sm",
           text: info?.이름 ?? row.로직,
           attrs: { type: "button", title: tc("Open") },
         });
@@ -249,11 +249,22 @@ export function mountM01Combo(
         const btns = el("div", {
           className: "m01-logic__chips",
           children: [
-            createButton({ label: tc("Up"), variant: "ghost", onClick: () => move(i, -1) }),
-            createButton({ label: tc("Down"), variant: "ghost", onClick: () => move(i, 1) }),
+            createButton({
+              label: tc("Up"),
+              variant: "ghost",
+              size: "sm",
+              onClick: () => move(i, -1),
+            }),
+            createButton({
+              label: tc("Down"),
+              variant: "ghost",
+              size: "sm",
+              onClick: () => move(i, 1),
+            }),
             createButton({
               label: tc("Remove"),
               variant: "ghost",
+              size: "sm",
               onClick: () => {
                 combo.담은로직.splice(i, 1);
                 drawTable();
diff --git a/M01_MasterData/M01_MasterData_UI_Rows.ts b/M01_MasterData/M01_MasterData_UI_Rows.ts
index 07f5b564..a3b5d24d 100644
--- a/M01_MasterData/M01_MasterData_UI_Rows.ts
+++ b/M01_MasterData/M01_MasterData_UI_Rows.ts
@@ -248,12 +248,13 @@ export function renderRows(host: HTMLElement, pick: Pick, q: string): () => void
 }
 
 function actionCell(label: string, onClick: () => void): HTMLTableCellElement {
-  return el("td", { children: [createButton({ label, variant: "ghost", onClick })] });
+  return el("td", { children: [createButton({ label, variant: "ghost", size: "sm", onClick })] });
 }
 
 type Put = (row: Row) => void;
 
-const rowBtn = (label: string): HTMLButtonElement => createButton({ label, variant: "ghost" });
+const rowBtn = (label: string): HTMLButtonElement =>
+  createButton({ label, variant: "ghost", size: "sm" });
 
 /** 품셈재료 — 가격 연결(자재품목 키 · 후보 조건 · 없음) · 고르기 모달. */
 function linkedCell(row: Row, cur: Row, put?: Put): HTMLTableCellElement {
diff --git a/M01_MasterData/M01_MasterData_UI_Style.css b/M01_MasterData/M01_MasterData_UI_Style.css
index 6d2983e3..2b909b1b 100644
--- a/M01_MasterData/M01_MasterData_UI_Style.css
+++ b/M01_MasterData/M01_MasterData_UI_Style.css
@@ -162,12 +162,6 @@
   padding: 2px var(--spacing-4);
 }
 
-/* 표 칸 안 공용 단추 — 줄 높이에 맞춰 작게 */
-.m01-master__grid .ui-btn {
-  padding: 2px var(--spacing-8);
-  font-size: var(--text-caption);
-}
-
 .m01-master__pager {
   display: flex;
   align-items: center;
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Structure.css b/M02_MasterTemplete/M02_MasterTemplete_Structure.css
index 104ed6ac..e291744e 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Structure.css
+++ b/M02_MasterTemplete/M02_MasterTemplete_Structure.css
@@ -54,13 +54,19 @@
   min-width: 0;
 }
 
+/* 머리 = 번호 · [수정] 한 줄, 이름은 그 아래 전체 폭 — 긴 이름도 잘리지 않게 줄바꿈 */
+.m02-struct__head {
+  flex-wrap: wrap;
+}
+
 .m02-struct__title {
+  order: 1;
+  flex: 1 0 100%;
+  min-width: 0;
   margin: 0;
-  overflow: hidden;
   color: var(--color-text);
   font-size: var(--text-body);
-  text-overflow: ellipsis;
-  white-space: nowrap;
+  overflow-wrap: anywhere; /* 이름이 길어도 잘리지 않게 줄바꿈 */
 }
 
 .m02-struct__no {
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Structure.ts b/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
index b95e356c..a52ae745 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
@@ -264,7 +264,7 @@ export function createStructurePanel(opts: StructurePanelOptions): StructurePane
 
   const columnName = el("span", { className: "m02-struct__title" });
   const number = el("span", { className: "m02-struct__no" });
-  const edit = createButton({ label: TEXT.edit, variant: "filled" });
+  const edit = createButton({ label: TEXT.edit, variant: "filled", size: "sm" });
   const previewHost = el("div", { className: "m02-struct__preview" });
   const infoCard = card(
     TEXT.drawingInfo,
@@ -288,6 +288,7 @@ export function createStructurePanel(opts: StructurePanelOptions): StructurePane
     const editButton = createButton({
       label: fill(TEXT.editSheet, PARTS[kind].word),
       variant: "ghost",
+      size: "sm",
     });
     const host = el("div", { className: "m02-struct__sheet" });
     editButton.addEventListener("click", () => void openEdit(kind));
diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
index 80b5c960..e1bbec82 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
@@ -119,9 +119,9 @@ export function buildSide(opt: SideOptions): SideHandle {
   const editButtons = new Map<Kind, { copy: HTMLButtonElement; del: HTMLButtonElement }>();
   const actionRow = (kind: Kind): HTMLElement[] => {
     if (!canEdit(layer, opt.isAdmin)) return [];
-    const btnNew = createButton({ label: L("M02_New"), variant: "filled" });
-    const copy = createButton({ label: L("M02_Copy"), variant: "ghost" });
-    const del = createButton({ label: L("M02_Delete"), variant: "danger" });
+    const btnNew = createButton({ label: L("M02_New"), variant: "filled", size: "sm" });
+    const copy = createButton({ label: L("M02_Copy"), variant: "ghost", size: "sm" });
+    const del = createButton({ label: L("M02_Delete"), variant: "danger", size: "sm" });
     editButtons.set(kind, { copy, del });
     btnNew.addEventListener("click", () => newTemplate(kind));
     copy.addEventListener("click", copyTemplate);
diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css b/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
index 5c3ae7ed..cb26dc9c 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
@@ -26,7 +26,7 @@
 
 .m02-main__head {
   display: flex;
-  flex-wrap: nowrap;
+  flex-wrap: wrap;
   align-items: center;
   gap: var(--spacing-12);
 }
@@ -34,10 +34,7 @@
 .m02-main__title {
   flex: 0 1 auto;
   min-width: 3rem;
-  max-width: 9rem;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
+  overflow-wrap: anywhere; /* 번호 + 이름 — 잘리지 않게 줄바꿈 */
   margin: 0;
   color: var(--color-text);
   font-size: var(--text-body);
diff --git a/ui_template/ui_template_elements.ts b/ui_template/ui_template_elements.ts
index cb8fc767..4bd498b4 100644
--- a/ui_template/ui_template_elements.ts
+++ b/ui_template/ui_template_elements.ts
@@ -24,11 +24,14 @@ export { el } from "./ui_template_elements_base";
  * -------------------------------------------------------------------------- */
 
 export type ButtonVariant = "filled" | "ghost" | "pill" | "danger" | "glass";
+export type ButtonSize = "md" | "sm";
 
 export interface ButtonOptions {
   /** 표시 텍스트 (i18n 결과 문자열을 전달) */
   label: string;
   variant?: ButtonVariant;
+  /** 크기 — 기본 md · sm = 표 칸·카드 머리용 작은 단추(글자 캡션 크기) */
+  size?: ButtonSize;
   /** 이벤트 핸들러 (frontend.md §4: on[페이지]_[기능]_[액션] 명명) */
   onClick?: (ev: MouseEvent) => void;
   disabled?: boolean;
@@ -40,7 +43,7 @@ export interface ButtonOptions {
 export function createButton(opts: ButtonOptions): HTMLButtonElement {
   const variant = opts.variant ?? "filled";
   const btn = el("button", {
-    className: `ui-btn ui-btn--${variant}`,
+    className: `ui-btn ui-btn--${variant}${opts.size === "sm" ? " ui-btn--sm" : ""}`,
     attrs: { type: opts.type ?? "button" },
   });
   if (opts.iconStart) {
diff --git a/ui_template/ui_template_elements_styles.ts b/ui_template/ui_template_elements_styles.ts
index 598b4df1..5a1dd3d1 100644
--- a/ui_template/ui_template_elements_styles.ts
+++ b/ui_template/ui_template_elements_styles.ts
@@ -33,6 +33,12 @@ const BASE_CSS = `
 .ui-btn:disabled { opacity: 0.5; cursor: not-allowed; }
 .ui-btn__icon { display: inline-flex; width: 16px; height: 16px; }
 
+/* 작은 크기 — 다섯 모양 모두에 먹음(padding · 글자만 바꿈) */
+.ui-btn--sm {
+  padding: 2px var(--spacing-8);
+  font-size: var(--text-caption);
+}
+
 .ui-btn--filled {
   background-color: var(--color-primary);
   color: var(--color-primary-text);