{
  "schemaVersion": "1.0",
  "slug": "finished-end-panel-calculator",
  "route": "/tools/components/finished-end-panel-calculator/",
  "categorySlug": "fronts-panels-installation",
  "name": "Finished End Panel",
  "title": "Finished End Panel Calculator",
  "description": "Plan a finished cabinet end panel from the cabinet envelope and explicit top, bottom, front, and back extensions or insets.",
  "searchIntent": "finished cabinet end panel size calculator",
  "modelVersion": "1.0.0",
  "reviewedDate": "2026-07-30",
  "defaultInputs": {
    "cabinetHeight": 34.5,
    "cabinetDepth": 24,
    "topExtension": 0,
    "bottomExtension": 0,
    "frontExtension": 0.75,
    "backInset": 0,
    "panelThickness": 0.75,
    "panelCount": 1
  },
  "inputs": [
    {
      "id": "cabinetHeight",
      "label": "Cabinet reference height",
      "default": 34.5,
      "min": 3,
      "max": 120,
      "step": 0.0625,
      "unit": "in",
      "help": "Cabinet height between the reference top and bottom before end-panel extensions."
    },
    {
      "id": "cabinetDepth",
      "label": "Cabinet reference depth",
      "default": 24,
      "min": 3,
      "max": 60,
      "step": 0.0625,
      "unit": "in",
      "help": "Cabinet depth between the front and rear reference planes before end-panel adjustments."
    },
    {
      "id": "topExtension",
      "label": "Top extension",
      "default": 0,
      "min": 0,
      "max": 24,
      "step": 0.0625,
      "unit": "in",
      "help": "Additional panel length beyond the cabinet top reference."
    },
    {
      "id": "bottomExtension",
      "label": "Bottom extension",
      "default": 0,
      "min": 0,
      "max": 24,
      "step": 0.0625,
      "unit": "in",
      "help": "Additional panel length below the cabinet bottom reference."
    },
    {
      "id": "frontExtension",
      "label": "Front extension",
      "default": 0.75,
      "min": 0,
      "max": 12,
      "step": 0.0625,
      "unit": "in",
      "help": "Additional panel width beyond the cabinet front reference."
    },
    {
      "id": "backInset",
      "label": "Rear inset",
      "default": 0,
      "min": 0,
      "max": 12,
      "step": 0.0625,
      "unit": "in",
      "help": "Deduction from the cabinet rear reference to the finished panel back edge."
    },
    {
      "id": "panelThickness",
      "label": "Finished end thickness",
      "default": 0.75,
      "min": 0.125,
      "max": 3,
      "step": 0.03125,
      "unit": "in",
      "help": "Measured finished thickness of the end-panel assembly."
    },
    {
      "id": "panelCount",
      "label": "Panel quantity",
      "default": 1,
      "min": 1,
      "max": 24,
      "step": 1,
      "unit": "count",
      "help": "Count of end panels sharing the exact same hand, dimensions, grain, finish, and field condition."
    }
  ],
  "formulas": [
    {
      "part": "Finished end panel",
      "quantity": "panelCount",
      "length": "cabinetHeight + topExtension + bottomExtension",
      "width": "cabinetDepth + frontExtension - backInset",
      "thickness": "panelThickness",
      "formulaNote": "The blank grows beyond the cabinet reference at the entered extensions and reduces at the rear inset; scribe and profile stock require explicit additional control."
    }
  ],
  "defaultParts": [
    {
      "name": "Finished end panel",
      "quantity": 1,
      "length": 34.5,
      "width": 24.75,
      "thickness": 0.75,
      "materialGroup": "Finished exterior panel",
      "grain": "Vertical",
      "formulaNote": "The blank grows beyond the cabinet reference at the entered extensions and reduces at the rear inset; scribe and profile stock require explicit additional control."
    }
  ],
  "assumptions": [
    "The component is a rectangular applied finished end; irregular field scribing or shaped profiles are not generated by the formula.",
    "Top, bottom, and front inputs add material beyond named cabinet references while rear inset removes material.",
    "All panels grouped under one count have the same hand, field geometry, grain, finish, edge treatment, and installation sequence.",
    "This is a reviewable planning model, not a universal cabinetmaking standard; the shop drawing, approved sample, field dimensions, and contract documents remain authoritative.",
    "Manufacturer hardware dimensions, load ratings, fastener schedules, edge distances, and drilling requirements govern whenever hardware is involved."
  ],
  "checks": [
    "Confirm panel length and width close against every visible extension and inset on the approved elevation and section.",
    "Check door, drawer, pull, appliance, countertop, base, crown, wall, and adjacent-cabinet clearances through installation and use.",
    "Verify the finished face, hand, grain direction, part ID, scribe edge, and protective-film side before machining.",
    "Measure the actual sheet, board, or panel thickness from the material lot and reconcile it with every mating groove, dado, fastener, and hardware allowance.",
    "Build or dry-fit the first assembly, record the verified result, and release the remaining batch only under the same model revision."
  ],
  "stopConditions": [
    "Stop when the cabinet, floor, wall, countertop, appliance, or trim reference is not installed or reliably controlled.",
    "Stop when grain match, hand, edge, finish, scribe, attachment, or installation sequence has not been approved.",
    "Stop when the exact hardware product, current manufacturer data, or required attachment method is unresolved; do not substitute a generic allowance.",
    "Stop when field dimensions, actual material thickness, grain requirement, or model revision cannot be verified before batch cutting."
  ],
  "sources": [
    {
      "name": "ANSI/AWI 1235-2024 – Specialty Casework",
      "url": "https://awinet.org/standards/specialty-casework/requirements-specialty-casework/3-2-material-6/",
      "scope": "Primary industry standard used here for casework material, component, and hardware-planning context. Its published scope is specialty casework; it does not set universal residential cabinet dimensions or replace project documents."
    },
    {
      "name": "ANSI/AWI 0620-2025 – Finish Carpentry/Installation",
      "url": "https://awinet.org/standards/finish-carpentry-installation/requirements/structural-7/",
      "scope": "Primary industry standard used here only for installation, attachment, and structural-coordination context. It does not certify a wall, fastener, rail, or cabinet assembly for a specific load."
    }
  ]
}