diff --git a/backend/src/db.js b/backend/src/db.js
index b209e9f..3054eea 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -79,6 +79,9 @@ function mapTierListRow(row) {
     description: row.description || '',
     isPublic: !!row.is_public,
     showCharacterNames: !!row.show_character_names,
+    sourceTierListId: row.source_tierlist_id || '',
+    sourceSnapshotTitle: row.source_snapshot_title || '',
+    sourceSnapshotAuthor: row.source_snapshot_author || '',
     groups: parseJson(row.groups_json, []),
     pool: parseJson(row.pool_json, []),
     createdAt: Number(row.created_at),
@@ -228,6 +231,9 @@ async function ensureSchema() {
         description TEXT NOT NULL,
         is_public TINYINT(1) NOT NULL DEFAULT 0,
         show_character_names TINYINT(1) NOT NULL DEFAULT 0,
+        source_tierlist_id VARCHAR(64) NULL DEFAULT NULL,
+        source_snapshot_title VARCHAR(120) NOT NULL DEFAULT '',
+        source_snapshot_author VARCHAR(120) NOT NULL DEFAULT '',
         groups_json LONGTEXT NOT NULL,
         pool_json LONGTEXT NOT NULL,
         created_at BIGINT NOT NULL,
@@ -295,6 +301,18 @@ async function ensureSchema() {
     if (!tierListShowNamesColumns.length) {
       await query("ALTER TABLE tierlists ADD COLUMN show_character_names TINYINT(1) NOT NULL DEFAULT 0 AFTER is_public")
     }
+    const tierListSourceIdColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_tierlist_id'")
+    if (!tierListSourceIdColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_tierlist_id VARCHAR(64) NULL DEFAULT NULL AFTER show_character_names")
+    }
+    const tierListSourceTitleColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_snapshot_title'")
+    if (!tierListSourceTitleColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_snapshot_title VARCHAR(120) NOT NULL DEFAULT '' AFTER source_tierlist_id")
+    }
+    const tierListSourceAuthorColumns = await query("SHOW COLUMNS FROM tierlists LIKE 'source_snapshot_author'")
+    if (!tierListSourceAuthorColumns.length) {
+      await query("ALTER TABLE tierlists ADD COLUMN source_snapshot_author VARCHAR(120) NOT NULL DEFAULT '' AFTER source_snapshot_title")
+    }
 
     await query(
       `
@@ -894,6 +912,9 @@ async function listFavoriteTierLists(userId, { queryText = '', sort = 'favorited
         t.description,
         t.is_public,
         t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
         t.groups_json,
         t.pool_json,
         t.created_at,
@@ -1024,6 +1045,9 @@ async function listAdminTierLists({ queryText = '', page = 1, limit = 50, curren
         t.description,
         t.is_public,
         t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
         t.groups_json,
         t.pool_json,
         t.created_at,
@@ -1080,6 +1104,9 @@ async function findTierListById(id, currentUserId = '') {
         t.description,
         t.is_public,
         t.show_character_names,
+        t.source_tierlist_id,
+        t.source_snapshot_title,
+        t.source_snapshot_author,
         t.groups_json,
         t.pool_json,
         t.created_at,
@@ -1277,7 +1304,21 @@ async function deleteCustomItems(ids) {
   await query(`DELETE FROM custom_items WHERE id IN (${placeholders})`, ids)
 }
 
-async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', description, isPublic, showCharacterNames = false, groups, pool }) {
+async function saveTierList({
+  id,
+  authorId,
+  gameId,
+  title,
+  thumbnailSrc = '',
+  description,
+  isPublic,
+  showCharacterNames = false,
+  sourceTierListId = '',
+  sourceSnapshotTitle = '',
+  sourceSnapshotAuthor = '',
+  groups,
+  pool,
+}) {
   const existing = id ? await findTierListById(id, authorId) : null
   await syncOwnedCustomItemLabels({ ownerId: authorId, items: pool })
   const nextThumbnailSrc = (thumbnailSrc || '').trim() || getAutoThumbnailSrc(groups, pool)
@@ -1286,10 +1327,10 @@ async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', de
     await query(
       `
         UPDATE tierlists
-        SET title = ?, thumbnail_src = ?, description = ?, is_public = ?, show_character_names = ?, groups_json = ?, pool_json = ?, updated_at = ?
+        SET title = ?, thumbnail_src = ?, description = ?, is_public = ?, show_character_names = ?, source_tierlist_id = ?, source_snapshot_title = ?, source_snapshot_author = ?, groups_json = ?, pool_json = ?, updated_at = ?
         WHERE id = ?
       `,
-      [title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, serializeJson(groups), serializeJson(pool), now(), existing.id]
+      [title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, sourceTierListId || null, sourceSnapshotTitle || '', sourceSnapshotAuthor || '', serializeJson(groups), serializeJson(pool), now(), existing.id]
     )
     return findTierListById(existing.id, authorId)
   }
@@ -1298,15 +1339,37 @@ async function saveTierList({ id, authorId, gameId, title, thumbnailSrc = '', de
   await query(
     `
       INSERT INTO tierlists (
-        id, author_id, game_id, title, thumbnail_src, description, is_public, show_character_names, groups_json, pool_json, created_at, updated_at
+        id, author_id, game_id, title, thumbnail_src, description, is_public, show_character_names, source_tierlist_id, source_snapshot_title, source_snapshot_author, groups_json, pool_json, created_at, updated_at
       )
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `,
-    [id, authorId, gameId, title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, serializeJson(groups), serializeJson(pool), createdAt, createdAt]
+    [id, authorId, gameId, title, nextThumbnailSrc, description || '', isPublic ? 1 : 0, showCharacterNames ? 1 : 0, sourceTierListId || null, sourceSnapshotTitle || '', sourceSnapshotAuthor || '', serializeJson(groups), serializeJson(pool), createdAt, createdAt]
   )
   return findTierListById(id, authorId)
 }
 
+async function duplicateTierListForUser({ tierList, targetUserId }) {
+  const { nanoid } = require('nanoid')
+  const duplicateId = nanoid()
+  const baseTitle = (tierList.title || '티어표').trim() || '티어표'
+  const copyTitle = baseTitle.endsWith(' 복사본') ? baseTitle : `${baseTitle} 복사본`
+  return saveTierList({
+    id: duplicateId,
+    authorId: targetUserId,
+    gameId: tierList.gameId,
+    title: copyTitle,
+    thumbnailSrc: tierList.thumbnailSrc || '',
+    description: tierList.description || '',
+    isPublic: false,
+    showCharacterNames: !!tierList.showCharacterNames,
+    sourceTierListId: tierList.id,
+    sourceSnapshotTitle: tierList.title || '',
+    sourceSnapshotAuthor: tierList.authorName || tierList.authorAccountName || '',
+    groups: JSON.parse(JSON.stringify(tierList.groups || [])),
+    pool: JSON.parse(JSON.stringify(tierList.pool || [])),
+  })
+}
+
 async function favoriteTierList({ userId, tierListId }) {
   await query('INSERT IGNORE INTO favorite_tierlists (user_id, tierlist_id, created_at) VALUES (?, ?, ?)', [userId, tierListId, now()])
 }
@@ -1363,6 +1426,7 @@ module.exports = {
   findCustomItemsByIds,
   deleteCustomItems,
   saveTierList,
+  duplicateTierListForUser,
   createTemplateRequest,
   findTemplateRequestById,
   listAdminTemplateRequests,
diff --git a/backend/src/routes/tierlists.js b/backend/src/routes/tierlists.js
index 7c2ceff..475c93e 100644
--- a/backend/src/routes/tierlists.js
+++ b/backend/src/routes/tierlists.js
@@ -15,6 +15,7 @@ const {
   findUserById,
   favoriteTierList,
   unfavoriteTierList,
+  duplicateTierListForUser,
 } = require('../db')
 const { requireAuth } = require('../middleware/auth')
 
@@ -84,6 +85,9 @@ const tierListUpsertSchema = z.object({
   description: z.string().max(1000).optional().default(''),
   isPublic: z.boolean().default(false),
   showCharacterNames: z.boolean().optional().default(false),
+  sourceTierListId: z.string().max(64).optional().default(''),
+  sourceSnapshotTitle: z.string().max(120).optional().default(''),
+  sourceSnapshotAuthor: z.string().max(120).optional().default(''),
   groups: z.array(
     z.object({
       id: z.string().min(1),
@@ -131,6 +135,15 @@ router.get('/:id', async (req, res) => {
   res.json({ tierList: normalizeTierList(t) })
 })
 
+router.post('/:id/duplicate', requireAuth, async (req, res) => {
+  const tierList = await findTierListById(req.params.id, req.session.userId)
+  if (!tierList) return res.status(404).json({ error: 'not_found' })
+  if (!tierList.isPublic && tierList.authorId !== req.session.userId) return res.status(403).json({ error: 'forbidden' })
+
+  const duplicated = await duplicateTierListForUser({ tierList, targetUserId: req.session.userId })
+  res.json({ tierList: normalizeTierList(duplicated) })
+})
+
 router.delete('/:id', requireAuth, async (req, res) => {
   const tierList = await findTierListById(req.params.id, req.session.userId)
   if (!tierList) return res.status(404).json({ error: 'not_found' })
@@ -245,6 +258,9 @@ router.post('/', requireAuth, async (req, res) => {
       description: payload.description || '',
       isPublic: !!payload.isPublic,
       showCharacterNames: !!payload.showCharacterNames,
+      sourceTierListId: payload.sourceTierListId || existing.sourceTierListId || '',
+      sourceSnapshotTitle: payload.sourceSnapshotTitle || existing.sourceSnapshotTitle || '',
+      sourceSnapshotAuthor: payload.sourceSnapshotAuthor || existing.sourceSnapshotAuthor || '',
       groups: payload.groups,
       pool: normalizedPool,
     })
@@ -260,6 +276,9 @@ router.post('/', requireAuth, async (req, res) => {
     description: payload.description || '',
     isPublic: !!payload.isPublic,
     showCharacterNames: !!payload.showCharacterNames,
+    sourceTierListId: payload.sourceTierListId || '',
+    sourceSnapshotTitle: payload.sourceSnapshotTitle || '',
+    sourceSnapshotAuthor: payload.sourceSnapshotAuthor || '',
     groups: payload.groups,
     pool: normalizedPool,
   })
diff --git a/docs/update.md b/docs/update.md
index 3e1517b..e5582fa 100644
--- a/docs/update.md
+++ b/docs/update.md
@@ -1,5 +1,10 @@
 # 업데이트 로그
 
+## 2026-03-31 v1.2.71
+- 게임 허브 공개 티어표 카드는 자동 폭 그리드와 2줄 제목/유연한 메타 배치로 보정해, 브라우저 폭이 줄어들어도 썸네일과 텍스트가 카드 밖으로 넘치지 않도록 정리함.
+- 공개 티어표 상세에서는 다른 사용자의 티어표를 복사해 내 작업본으로 가져오는 기능을 추가하고, 복사본에는 원본 제목/작성자 정보를 작은 출처 메모로 남기도록 확장함.
+- 보기 전용 티어표의 미배치 아이템은 더 어둡고 흐리게 표시하고 `미배치` 상태를 붙여, 내 보드처럼 조작 가능한 인상을 줄이도록 보정함.
+
 ## 2026-03-31 v1.2.70
 - 관리자 게임 관리의 썸네일 드롭존을 카드 안 카드 구조 대신, 썸네일 전체 위에 하단 오버레이 문구를 얹는 단일 미디어 영역으로 정리함.
 - 게임 관리 본문 상단 안내 패널과 과한 설명 문구를 제거하고, 비선택 상태는 `게임을 선택해 주세요.` 한 줄 중심의 empty 상태로 단순화함.
diff --git a/frontend/src/lib/api.js b/frontend/src/lib/api.js
index 9d82ef0..c1eee4f 100644
--- a/frontend/src/lib/api.js
+++ b/frontend/src/lib/api.js
@@ -90,6 +90,7 @@ export const api = {
   favoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'POST' }),
   unfavoriteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/favorite`, { method: 'DELETE' }),
   deleteTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}`, { method: 'DELETE' }),
+  duplicateTierList: (id) => request(`/api/tierlists/${encodeURIComponent(id)}/duplicate`, { method: 'POST' }),
   requestTierListTemplate: (id, payload) => request(`/api/tierlists/${encodeURIComponent(id)}/template-request`, { method: 'POST', body: payload }),
   saveTierList: (payload) => request('/api/tierlists', { method: 'POST', body: payload }),
   uploadTierListThumbnail: async (file) => {
diff --git a/frontend/src/views/GameHubView.vue b/frontend/src/views/GameHubView.vue
index 95bce73..440f931 100644
--- a/frontend/src/views/GameHubView.vue
+++ b/frontend/src/views/GameHubView.vue
@@ -213,8 +213,9 @@ function submitSearch() {
 }
 .list {
   display: grid;
-  grid-template-columns: repeat(4, minmax(0, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(280px, 320px));
   gap: 18px;
+  justify-content: start;
 }
 .boardCard {
   border-radius: 22px;
@@ -271,25 +272,34 @@ function submitSearch() {
   min-width: 0;
   font-size: 18px;
   line-height: 1.35;
-  white-space: nowrap;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
   overflow: hidden;
   text-overflow: ellipsis;
 }
 .boardCard__head {
+  min-width: 0;
   padding: 16px 18px 18px;
   display: grid;
-  gap: 6px;
+  gap: 8px;
 }
 .boardCard__titleRow,
 .boardCard__metaRow {
+  min-width: 0;
   display: flex;
   gap: 10px;
   align-items: center;
   justify-content: space-between;
 }
 
+.boardCard__titleRow {
+  align-items: flex-start;
+}
+
 .boardCard__metaRow {
   align-items: flex-end;
+  flex-wrap: wrap;
 }
 .boardCard__author {
   min-width: 0;
@@ -323,6 +333,7 @@ function submitSearch() {
 .boardCard__date,
 .favoriteStat {
   flex: 0 0 auto;
+  min-width: 0;
   font-size: 13px;
   color: rgba(255, 255, 255, 0.64);
   white-space: nowrap;
diff --git a/frontend/src/views/TierEditorView.vue b/frontend/src/views/TierEditorView.vue
index 496a3db..b3a54f8 100644
--- a/frontend/src/views/TierEditorView.vue
+++ b/frontend/src/views/TierEditorView.vue
@@ -49,6 +49,9 @@ const ownerId = ref('')
 const authorName = ref('')
 const authorAccountName = ref('')
 const updatedAt = ref(0)
+const sourceTierListId = ref('')
+const sourceSnapshotTitle = ref('')
+const sourceSnapshotAuthor = ref('')
 const isDragActive = ref(false)
 const isThumbnailDragActive = ref(false)
 const iconSize = ref(80)
@@ -95,6 +98,14 @@ const untitledWarning = computed(
     '제목 없이 저장된 티어표는 무분별한 도배 방지를 위해 관리자에 의해 임의 삭제될 수 있어요.'
 )
 const canFavorite = computed(() => !!auth.user && !isNewTierList.value && !canEdit.value)
+const canDuplicate = computed(() => !!auth.user && !isNewTierList.value && !canEdit.value)
+const copiedFromLabel = computed(() => {
+  if (!sourceTierListId.value) return ''
+  const parts = []
+  if (sourceSnapshotTitle.value) parts.push(`원본 ${sourceSnapshotTitle.value}`)
+  if (sourceSnapshotAuthor.value) parts.push(sourceSnapshotAuthor.value)
+  return parts.join(' · ') || '복사해 온 티어표'
+})
 const customItems = computed(() =>
   Object.values(itemsById.value)
     .filter((item) => item?.origin === 'custom')
@@ -473,6 +484,9 @@ function buildPayload(existingId) {
     description: (description.value || '').trim(),
     isPublic: !!isPublic.value,
     showCharacterNames: !!showCharacterNames.value,
+    sourceTierListId: sourceTierListId.value || '',
+    sourceSnapshotTitle: sourceSnapshotTitle.value || '',
+    sourceSnapshotAuthor: sourceSnapshotAuthor.value || '',
     groups: groups.value.map((g) => ({ id: g.id, name: g.name, itemIds: g.itemIds })),
     pool: Object.values(itemsById.value),
   }
@@ -561,6 +575,19 @@ async function confirmDeleteTierList() {
   }
 }
 
+async function duplicateCurrentTierList() {
+  if (!canDuplicate.value) return
+  try {
+    const data = await api.duplicateTierList(tierListId.value)
+    const duplicatedId = data.tierList?.id
+    if (!duplicatedId) throw new Error('duplicate_failed')
+    toast.success('티어표를 복사해 내 작업으로 가져왔어요.')
+    router.push(`/editor/${gameId.value}/${duplicatedId}`)
+  } catch (e) {
+    error.value = '티어표 복사에 실패했어요.'
+  }
+}
+
 async function toggleFavorite() {
   if (!canFavorite.value || isFavoriteBusy.value) return
   try {
@@ -653,6 +680,9 @@ onMounted(() => {
         authorName.value = t.authorName || ''
         authorAccountName.value = t.authorAccountName || ''
         updatedAt.value = Number(t.updatedAt || 0)
+        sourceTierListId.value = t.sourceTierListId || ''
+        sourceSnapshotTitle.value = t.sourceSnapshotTitle || ''
+        sourceSnapshotAuthor.value = t.sourceSnapshotAuthor || ''
         favoriteCount.value = Number(t.favoriteCount || 0)
         isFavorited.value = !!t.isFavorited
         groups.value = t.groups
@@ -699,7 +729,7 @@ onUnmounted(() => {
       <div v-if="pool.length" class="previewOnly__pool">
         <div class="previewOnly__poolTitle">남은 아이템</div>
         <div class="previewOnly__poolGrid">
-          <div v-for="id in pool" :key="id" class="previewOnly__poolItem">
+          <div v-for="id in pool" :key="id" class="previewOnly__poolItem previewOnly__poolItem--inactive">
             <img :src="resolveItemSrc(itemsById[id])" class="thumb" :alt="itemsById[id]?.label || id" />
           </div>
         </div>
@@ -816,6 +846,10 @@ onUnmounted(() => {
               공개된 티어표를 보는 중입니다. 로그인한 작성자만 수정할 수 있어요.
             </template>
           </div>
+          <div v-if="sourceTierListId" class="editorMain__sourceNote">
+            <span>복사본</span>
+            <button class="editorMain__sourceLink" type="button" @click="router.push(`/editor/${gameId}/${sourceTierListId}`)">{{ copiedFromLabel }}</button>
+          </div>
         </div>
       </section>
 
@@ -911,9 +945,10 @@ onUnmounted(() => {
             {{ canEdit ? '등록된 아이템 리스트입니다. 드래그해서 표에 넣을 수 있습니다.' : '공개 티어표는 보기 전용입니다.' }}
           </div>
           <div ref="poolEl" class="pool" data-list-type="pool">
-            <div v-for="id in pool" :key="id" class="poolItem" :data-item-id="id">
+            <div v-for="id in pool" :key="id" class="poolItem" :class="{ 'poolItem--readonly': !canEdit }" :data-item-id="id">
               <img :src="resolveItemSrc(itemsById[id])" class="thumb" :alt="itemsById[id]?.label || id" />
               <div class="poolItem__label">{{ itemsById[id]?.label || id }}</div>
+              <div v-if="!canEdit" class="poolItem__state">미배치</div>
             </div>
           </div>
         </div>
@@ -1005,6 +1040,7 @@ onUnmounted(() => {
         </div>
         <div class="editorSidebar__utilityLinks">
           <button v-if="canEdit && !isNewTierList" class="editorSidebar__utilityLink editorSidebar__utilityLink--danger" @click="openDeleteModal">삭제하기</button>
+          <button v-if="canDuplicate" class="editorSidebar__utilityLink" @click="duplicateCurrentTierList">복사해서 내 티어표로 가져오기</button>
           <button
             v-if="canRequestTemplateCreate"
             class="editorSidebar__utilityLink"
@@ -1055,6 +1091,23 @@ onUnmounted(() => {
   font-size: 13px;
   line-height: 1.5;
 }
+.editorMain__sourceNote {
+  margin-top: 4px;
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+  font-size: 12px;
+  color: rgba(255, 255, 255, 0.62);
+}
+.editorMain__sourceLink {
+  border: 0;
+  padding: 0;
+  background: transparent;
+  color: rgba(191, 219, 254, 0.94);
+  font: inherit;
+  cursor: pointer;
+}
 .previewOnly {
   min-height: 100vh;
   padding: 20px;
@@ -1133,6 +1186,10 @@ onUnmounted(() => {
   display: inline-flex;
   position: relative;
 }
+.previewOnly__poolItem--inactive {
+  opacity: 0.52;
+  filter: grayscale(0.22) brightness(0.78);
+}
 .toggleSwitch {
   display: inline-flex;
   align-items: center;
@@ -1845,6 +1902,10 @@ onUnmounted(() => {
   border: 1px solid rgba(255, 255, 255, 0.10);
   background: rgba(0, 0, 0, 0.18);
 }
+.poolItem--readonly {
+  opacity: 0.58;
+  filter: grayscale(0.25) brightness(0.78);
+}
 .poolItem .thumb {
   width: 100%;
   max-width: var(--thumb-size, 80px);
@@ -1863,6 +1924,13 @@ onUnmounted(() => {
   text-overflow: ellipsis;
   white-space: nowrap;
 }
+.poolItem__state {
+  font-size: 10px;
+  font-weight: 800;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  color: rgba(255, 255, 255, 0.58);
+}
 .hidden {
   display: none;
 }