diff --git a/app/components/ComponentModelStructureEditor.vue b/app/components/ComponentModelStructureEditor.vue
index 6ff316a..85bf8e9 100644
--- a/app/components/ComponentModelStructureEditor.vue
+++ b/app/components/ComponentModelStructureEditor.vue
@@ -74,30 +74,57 @@
         <div
           v-for="(piece, index) in localStructure.pieces"
           :key="`root-piece-${index}`"
-          class="border border-base-200 rounded-md p-3"
+          class="border border-base-200 rounded-md p-3 space-y-3"
         >
           <div class="flex items-start justify-between gap-2">
-            <div class="flex-1 grid grid-cols-1 md:grid-cols-3 gap-2">
-              <input
-                v-model="piece.name"
-                type="text"
-                class="input input-bordered input-xs"
-                placeholder="Nom de la pièce"
-              />
-              <input
-                v-model="piece.reference"
-                type="text"
-                class="input input-bordered input-xs"
-                placeholder="Référence"
-              />
-              <input
-                v-model.number="piece.quantity"
-                type="number"
-                min="0"
-                step="1"
-                class="input input-bordered input-xs"
-                placeholder="Quantité"
-              />
+            <div class="flex-1 space-y-3">
+              <div class="grid grid-cols-1 md:grid-cols-3 gap-2">
+                <input
+                  v-model="piece.name"
+                  type="text"
+                  class="input input-bordered input-xs"
+                  placeholder="Nom de la pièce"
+                />
+                <input
+                  v-model="piece.reference"
+                  type="text"
+                  class="input input-bordered input-xs"
+                  placeholder="Référence"
+                />
+                <input
+                  v-model.number="piece.quantity"
+                  type="number"
+                  min="0"
+                  step="1"
+                  class="input input-bordered input-xs"
+                  placeholder="Quantité"
+                />
+              </div>
+              <div class="form-control">
+                <label class="label"><span class="label-text">Famille de pièce</span></label>
+                <div>
+                  <input
+                    :list="`component-piece-type-options-${index}`"
+                    v-model="piece.typePieceLabel"
+                    type="search"
+                    autocomplete="off"
+                    class="input input-bordered input-xs"
+                    placeholder="Rechercher une famille"
+                    @change="handlePieceTypeChange(piece)"
+                    @blur="handlePieceTypeChange(piece)"
+                  />
+                  <datalist :id="`component-piece-type-options-${index}`">
+                    <option
+                      v-for="type in availablePieceTypes"
+                      :key="type.id"
+                      :value="formatPieceTypeOption(type)"
+                    />
+                  </datalist>
+                </div>
+                <p class="mt-1 text-[11px] text-gray-500">
+                  {{ piece.typePieceId ? `Sélection : ${getPieceTypeLabel(piece.typePieceId) || 'Inconnue'}` : 'Aucune famille sélectionnée' }}
+                </p>
+              </div>
             </div>
             <button type="button" class="btn btn-error btn-xs btn-square" @click="removePiece(index)">
               <IconLucideTrash class="w-4 h-4" aria-hidden="true" />
@@ -124,6 +151,7 @@
           :key="`root-sub-${index}`"
           :node="subComponent"
           :depth="0"
+          :piece-types="availablePieceTypes"
           @remove="removeSubComponent(index)"
         />
       </div>
@@ -132,7 +160,7 @@
 </template>
 
 <script setup lang="ts">
-import { reactive, watch } from 'vue'
+import { reactive, watch, computed, onMounted } from 'vue'
 import IconLucidePlus from '~icons/lucide/plus'
 import IconLucideTrash from '~icons/lucide/trash'
 import StructureSubComponentEditor from '~/components/StructureSubComponentEditor.vue'
@@ -141,6 +169,7 @@ import {
   hydrateStructureForEditor,
   normalizeStructureForSave,
 } from '~/shared/modelUtils'
+import { usePieceTypes } from '~/composables/usePieceTypes'
 
 defineOptions({ name: 'ComponentModelStructureEditor' })
 
@@ -186,6 +215,138 @@ watch(
   { deep: true }
 )
 
+type PieceTypeOption = {
+  id: string
+  name: string
+  code?: string | null
+}
+
+const { pieceTypes, loadPieceTypes } = usePieceTypes()
+
+const availablePieceTypes = computed<PieceTypeOption[]>(() => pieceTypes.value ?? [])
+
+const pieceTypeMap = computed(() => {
+  const map = new Map<string, PieceTypeOption>()
+  availablePieceTypes.value.forEach((type) => {
+    if (type && typeof type.id === 'string') {
+      map.set(type.id, type)
+    }
+  })
+  return map
+})
+
+const formatPieceTypeOption = (type: PieceTypeOption | undefined | null) => {
+  if (!type) return ''
+  return type.code ? `${type.name} (${type.code})` : type.name
+}
+
+const resolvePieceType = (input: string) => {
+  const normalized = input.trim().toLowerCase()
+  if (!normalized) {
+    return null
+  }
+  return (
+    availablePieceTypes.value.find((type) => {
+      const formatted = formatPieceTypeOption(type).toLowerCase()
+      const name = (type?.name ?? '').toLowerCase()
+      const code = (type?.code ?? '').toLowerCase()
+      return (
+        formatted === normalized
+        || name === normalized
+        || (!!code && code === normalized)
+      )
+    }) ?? null
+  )
+}
+
+const getPieceTypeLabel = (id?: string) => {
+  if (!id) return ''
+  const option = pieceTypeMap.value.get(id)
+  return formatPieceTypeOption(option)
+}
+
+const updatePieceTypeLabel = (piece: any) => {
+  if (!piece) {
+    return
+  }
+  if (piece.typePieceId) {
+    const option = pieceTypeMap.value.get(piece.typePieceId)
+    piece.typePieceLabel = option ? formatPieceTypeOption(option) : piece.typePieceLabel || ''
+  } else if (piece.typePieceLabel) {
+    const match = resolvePieceType(piece.typePieceLabel)
+    if (match) {
+      piece.typePieceId = match.id
+      piece.typePieceLabel = formatPieceTypeOption(match)
+    }
+  }
+}
+
+const handlePieceTypeChange = (piece: any) => {
+  if (!piece) {
+    return
+  }
+  const value = typeof piece.typePieceLabel === 'string' ? piece.typePieceLabel.trim() : ''
+  if (!value) {
+    piece.typePieceId = ''
+    piece.typePieceLabel = ''
+    return
+  }
+  const match = resolvePieceType(value)
+  if (match) {
+    piece.typePieceId = match.id
+    piece.typePieceLabel = formatPieceTypeOption(match)
+  } else {
+    piece.typePieceId = ''
+  }
+}
+
+const applyPieceLabels = (pieces?: any[]) => {
+  if (!Array.isArray(pieces)) {
+    return
+  }
+  pieces.forEach((piece) => {
+    if (piece?.typePieceId) {
+      updatePieceTypeLabel(piece)
+    } else if (piece?.typePieceLabel) {
+      const match = resolvePieceType(piece.typePieceLabel)
+      if (match) {
+        piece.typePieceId = match.id
+        piece.typePieceLabel = formatPieceTypeOption(match)
+      }
+    }
+  })
+}
+
+const traverseSubComponents = (components?: any[]) => {
+  if (!Array.isArray(components)) {
+    return
+  }
+  components.forEach((component) => {
+    applyPieceLabels(component?.pieces)
+    traverseSubComponents(component?.subComponents)
+  })
+}
+
+const syncAllPieceTypeLabels = () => {
+  applyPieceLabels(localStructure.pieces)
+  traverseSubComponents(localStructure.subComponents)
+}
+
+onMounted(async () => {
+  if (!availablePieceTypes.value.length) {
+    await loadPieceTypes()
+  }
+  syncAllPieceTypeLabels()
+})
+
+watch(
+  () => availablePieceTypes.value,
+  () => {
+    syncAllPieceTypeLabels()
+  },
+  { deep: true }
+)
+
 const ensureArray = (key: 'customFields' | 'pieces' | 'subComponents') => {
   if (!Array.isArray(localStructure[key])) {
     localStructure[key] = []
@@ -215,6 +376,8 @@ const addPiece = () => {
     name: '',
     reference: '',
     quantity: undefined,
+    typePieceId: '',
+    typePieceLabel: '',
   })
 }
 
diff --git a/app/components/StructureSubComponentEditor.vue b/app/components/StructureSubComponentEditor.vue
index 637cd08..e8de0b9 100644
--- a/app/components/StructureSubComponentEditor.vue
+++ b/app/components/StructureSubComponentEditor.vue
@@ -116,30 +116,57 @@
           <div
             v-for="(piece, pieceIndex) in node.pieces"
             :key="`piece-${depth}-${pieceIndex}`"
-            class="border border-base-200 rounded-md p-3"
+            class="border border-base-200 rounded-md p-3 space-y-3"
           >
             <div class="flex items-start justify-between gap-2">
-              <div class="flex-1 grid grid-cols-1 md:grid-cols-3 gap-2">
-                <input
-                  v-model="piece.name"
-                  type="text"
-                  class="input input-bordered input-xs"
-                  placeholder="Nom de la pièce"
-                />
-                <input
-                  v-model="piece.reference"
-                  type="text"
-                  class="input input-bordered input-xs"
-                  placeholder="Référence"
-                />
-                <input
-                  v-model.number="piece.quantity"
-                  type="number"
-                  min="0"
-                  step="1"
-                  class="input input-bordered input-xs"
-                  placeholder="Quantité"
-                />
+              <div class="flex-1 space-y-3">
+                <div class="grid grid-cols-1 md:grid-cols-3 gap-2">
+                  <input
+                    v-model="piece.name"
+                    type="text"
+                    class="input input-bordered input-xs"
+                    placeholder="Nom de la pièce"
+                  />
+                  <input
+                    v-model="piece.reference"
+                    type="text"
+                    class="input input-bordered input-xs"
+                    placeholder="Référence"
+                  />
+                  <input
+                    v-model.number="piece.quantity"
+                    type="number"
+                    min="0"
+                    step="1"
+                    class="input input-bordered input-xs"
+                    placeholder="Quantité"
+                  />
+                </div>
+                <div class="form-control">
+                  <label class="label"><span class="label-text">Famille de pièce</span></label>
+                  <div>
+                    <input
+                      :list="getPieceTypeListId(pieceIndex)"
+                      v-model="piece.typePieceLabel"
+                      type="search"
+                      autocomplete="off"
+                      class="input input-bordered input-xs"
+                      placeholder="Rechercher une famille"
+                      @change="handlePieceTypeChange(piece)"
+                      @blur="handlePieceTypeChange(piece)"
+                    />
+                    <datalist :id="getPieceTypeListId(pieceIndex)">
+                      <option
+                        v-for="type in pieceTypes"
+                        :key="type.id"
+                        :value="formatPieceTypeOption(type)"
+                      />
+                    </datalist>
+                  </div>
+                  <p class="mt-1 text-[11px] text-gray-500">
+                    {{ piece.typePieceId ? `Sélection : ${getPieceTypeLabel(piece.typePieceId) || 'Inconnue'}` : 'Aucune famille sélectionnée' }}
+                  </p>
+                </div>
               </div>
               <button type="button" class="btn btn-error btn-xs btn-square" @click="removePiece(pieceIndex)">
                 <IconLucideTrash class="w-4 h-4" aria-hidden="true" />
@@ -168,6 +195,7 @@
             :key="`sub-${depth}-${index}`"
             :node="sub"
             :depth="depth + 1"
+            :piece-types="pieceTypes"
             @remove="removeSubComponent(index)"
           />
         </div>
@@ -177,26 +205,155 @@
 </template>
 
 <script setup lang="ts">
-import { computed, ref } from 'vue'
+import { computed, ref, watch } from 'vue'
 import IconLucideChevronRight from '~icons/lucide/chevron-right'
 import IconLucidePlus from '~icons/lucide/plus'
 import IconLucideTrash from '~icons/lucide/trash'
 
 defineOptions({ name: 'StructureSubComponentEditor' })
 
-const props = defineProps({
-  node: {
-    type: Object,
-    required: true,
-  },
-  depth: {
-    type: Number,
-    default: 0,
-  },
+type PieceTypeOption = {
+  id: string
+  name: string
+  code?: string | null
+}
+
+const props = withDefaults(defineProps<{
+  node: Record<string, any>
+  depth?: number
+  pieceTypes?: PieceTypeOption[]
+}>(), {
+  depth: 0,
+  pieceTypes: () => [],
 })
 
 const emit = defineEmits(['remove'])
 
+const pieceTypeMap = computed(() => {
+  const map = new Map<string, PieceTypeOption>()
+  ;(props.pieceTypes ?? []).forEach((type) => {
+    if (type && typeof type.id === 'string') {
+      map.set(type.id, type)
+    }
+  })
+  return map
+})
+
+const formatPieceTypeOption = (type: PieceTypeOption | undefined | null) => {
+  if (!type) return ''
+  return type.code ? `${type.name} (${type.code})` : type.name
+}
+
+const resolvePieceType = (input: string) => {
+  const normalized = input.trim().toLowerCase()
+  if (!normalized) {
+    return null
+  }
+  return (
+    (props.pieceTypes ?? []).find((type) => {
+      const formatted = formatPieceTypeOption(type).toLowerCase()
+      const name = (type?.name ?? '').toLowerCase()
+      const code = (type?.code ?? '').toLowerCase()
+      return (
+        formatted === normalized
+        || name === normalized
+        || (!!code && code === normalized)
+      )
+    }) ?? null
+  )
+}
+
+const getPieceTypeLabel = (id?: string) => {
+  if (!id) return ''
+  const option = pieceTypeMap.value.get(id)
+  return formatPieceTypeOption(option)
+}
+
+const updatePieceTypeLabel = (piece: any) => {
+  if (!piece) {
+    return
+  }
+  if (piece.typePieceId) {
+    const option = pieceTypeMap.value.get(piece.typePieceId)
+    piece.typePieceLabel = option ? formatPieceTypeOption(option) : piece.typePieceLabel || ''
+  } else if (piece.typePieceLabel) {
+    const match = resolvePieceType(piece.typePieceLabel)
+    if (match) {
+      piece.typePieceId = match.id
+      piece.typePieceLabel = formatPieceTypeOption(match)
+    }
+  }
+}
+
+const handlePieceTypeChange = (piece: any) => {
+  if (!piece) {
+    return
+  }
+  const value = typeof piece.typePieceLabel === 'string' ? piece.typePieceLabel.trim() : ''
+  if (!value) {
+    piece.typePieceId = ''
+    piece.typePieceLabel = ''
+    return
+  }
+  const match = resolvePieceType(value)
+  if (match) {
+    piece.typePieceId = match.id
+    piece.typePieceLabel = formatPieceTypeOption(match)
+  } else {
+    piece.typePieceId = ''
+  }
+}
+
+const getPieceTypeListId = (pieceIndex: number) => `sub-piece-type-options-${props.depth ?? 0}-${pieceIndex}`
+
+const applyPieceLabels = (pieces?: any[]) => {
+  if (!Array.isArray(pieces)) {
+    return
+  }
+  pieces.forEach((piece) => {
+    if (piece?.typePieceId) {
+      updatePieceTypeLabel(piece)
+    } else if (piece?.typePieceLabel) {
+      const match = resolvePieceType(piece.typePieceLabel)
+      if (match) {
+        piece.typePieceId = match.id
+        piece.typePieceLabel = formatPieceTypeOption(match)
+      }
+    }
+  })
+}
+
+const traverseSubComponents = (components?: any[]) => {
+  if (!Array.isArray(components)) {
+    return
+  }
+  components.forEach((component) => {
+    applyPieceLabels(component?.pieces)
+    traverseSubComponents(component?.subComponents)
+  })
+}
+
+const syncPieceTypeLabels = () => {
+  applyPieceLabels(props.node?.pieces)
+  traverseSubComponents(props.node?.subComponents)
+}
+
+watch(
+  () => props.pieceTypes,
+  () => {
+    syncPieceTypeLabels()
+  },
+  { deep: true, immediate: true }
+)
+
+watch(
+  () => props.node,
+  () => {
+    syncPieceTypeLabels()
+  },
+  { deep: true }
+)
+
 const expanded = ref(true)
 const depthPadding = computed(() => (props.depth > 0 ? 'ml-4' : ''))
 
@@ -233,6 +390,8 @@ const addPiece = () => {
     name: '',
     reference: '',
     quantity: undefined,
+    typePieceId: '',
+    typePieceLabel: '',
   })
 }
 
diff --git a/app/shared/modelUtils.ts b/app/shared/modelUtils.ts
index 0401d1e..62a8b51 100644
--- a/app/shared/modelUtils.ts
+++ b/app/shared/modelUtils.ts
@@ -85,6 +85,20 @@ const sanitizePieces = (pieces: any[]): any[] => {
       const quantity = Number(piece?.quantity)
       const normalizedQuantity = Number.isFinite(quantity) && quantity > 0 ? quantity : undefined
 
+      const rawTypePieceId = typeof piece?.typePieceId === 'string'
+        ? piece.typePieceId.trim()
+        : typeof piece?.typePiece?.id === 'string'
+          ? piece.typePiece.id.trim()
+          : ''
+      const typePieceId = rawTypePieceId.length > 0 ? rawTypePieceId : undefined
+
+      const rawTypePieceLabel = typeof piece?.typePieceLabel === 'string'
+        ? piece.typePieceLabel.trim()
+        : typeof piece?.typePiece?.name === 'string'
+          ? piece.typePiece.name.trim()
+          : ''
+      const typePieceLabel = rawTypePieceLabel.length > 0 ? rawTypePieceLabel : undefined
+
       const result: Record<string, unknown> = { name }
       if (reference !== undefined) {
         result.reference = reference
@@ -92,6 +106,12 @@ const sanitizePieces = (pieces: any[]): any[] => {
       if (normalizedQuantity !== undefined) {
         result.quantity = normalizedQuantity
       }
+      if (typePieceId) {
+        result.typePieceId = typePieceId
+      }
+      if (typePieceLabel) {
+        result.typePieceLabel = typePieceLabel
+      }
       return result
     })
     .filter(Boolean)
@@ -173,6 +193,8 @@ const hydratePieces = (pieces: any[]): any[] => {
     name: piece?.name ?? '',
     reference: piece?.reference ?? '',
     quantity: piece?.quantity ?? undefined,
+    typePieceId: piece?.typePieceId ?? piece?.typePiece?.id ?? '',
+    typePieceLabel: piece?.typePieceLabel ?? piece?.typePiece?.name ?? '',
   }))
 }