{
  "schemaVersion": "1.0",
  "slug": "cabinet-hanging-rail-calculator",
  "route": "/tools/components/cabinet-hanging-rail-calculator/",
  "categorySlug": "fronts-panels-installation",
  "name": "Cabinet Hanging Rail",
  "title": "Cabinet Hanging Rail Calculator",
  "description": "Plan straight hanging-rail blanks across a cabinet or run using side clearances, rail height and thickness, rail count, segment count, and segment gaps.",
  "searchIntent": "cabinet hanging rail cut list calculator",
  "modelVersion": "1.0.0",
  "reviewedDate": "2026-07-30",
  "defaultInputs": {
    "runWidth": 30,
    "sideClearance": 0.25,
    "railHeight": 4,
    "railThickness": 0.75,
    "railCount": 2,
    "segmentCount": 1,
    "segmentGap": 0.125
  },
  "inputs": [
    {
      "id": "runWidth",
      "label": "Cabinet or run width",
      "default": 30,
      "min": 6,
      "max": 240,
      "step": 0.0625,
      "unit": "in",
      "help": "Total horizontal reference width available to the modeled rail row."
    },
    {
      "id": "sideClearance",
      "label": "Clearance at each end",
      "default": 0.25,
      "min": 0,
      "max": 12,
      "step": 0.0625,
      "unit": "in",
      "help": "Equal end clearance from the run boundaries to each rail row."
    },
    {
      "id": "railHeight",
      "label": "Rail face height",
      "default": 4,
      "min": 1,
      "max": 12,
      "step": 0.0625,
      "unit": "in",
      "help": "Finished face height of the straight blank before any approved bevel or profile."
    },
    {
      "id": "railThickness",
      "label": "Rail thickness",
      "default": 0.75,
      "min": 0.25,
      "max": 3,
      "step": 0.03125,
      "unit": "in",
      "help": "Measured finished blank thickness; proprietary systems must use their exact manufacturer geometry."
    },
    {
      "id": "railCount",
      "label": "Rail rows",
      "default": 2,
      "min": 1,
      "max": 8,
      "step": 1,
      "unit": "count",
      "help": "Number of equal horizontal rail rows from the approved attachment design."
    },
    {
      "id": "segmentCount",
      "label": "Segments per row",
      "default": 1,
      "min": 1,
      "max": 12,
      "step": 1,
      "unit": "count",
      "help": "Equal segments in each rail row; seams must align with approved support and attachment zones."
    },
    {
      "id": "segmentGap",
      "label": "Gap between segments",
      "default": 0.125,
      "min": 0,
      "max": 3,
      "step": 0.03125,
      "unit": "in",
      "help": "Deliberate gap between adjacent segments in the same row."
    }
  ],
  "formulas": [
    {
      "part": "Hanging rail segment",
      "quantity": "railCount * segmentCount",
      "length": "(runWidth - 2 * sideClearance - (segmentCount - 1) * segmentGap) / segmentCount",
      "width": "railHeight",
      "thickness": "railThickness",
      "formulaNote": "The formula divides clear row length into equal straight blanks. It does not establish bevel, proprietary profile, hole pattern, fastener count, or load capacity."
    }
  ],
  "defaultParts": [
    {
      "name": "Hanging rail segment",
      "quantity": 2,
      "length": 29.5,
      "width": 4,
      "thickness": 0.75,
      "materialGroup": "Approved hanging-rail or cleat stock",
      "grain": "Lengthwise",
      "formulaNote": "The formula divides clear row length into equal straight blanks. It does not establish bevel, proprietary profile, hole pattern, fastener count, or load capacity."
    }
  ],
  "assumptions": [
    "Every listed segment is a straight rectangular planning blank; bevels, hooks, proprietary profiles, holes, and slots are excluded.",
    "Equal side clearances and equal segment lengths apply to each rail row in the modeled run.",
    "Rail row count, seam positions, material, load, substrate, fasteners, spacing, and installation are approved inputs external to this size model.",
    "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 all segment lengths, gaps, and end clearances reconstruct the rail run width.",
    "Check every seam and fastener against cabinet structure, wall substrate, blocking, edge distance, services, and installation access.",
    "Verify mating profiles engage fully while preserving required leveling, locking, anti-lift, and adjustment features.",
    "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 load, substrate, blocking, rail material or profile, fastener, spacing, edge distance, or engineering approval is unresolved.",
    "Stop when a proprietary rail or cabinet-hanger system lacks its exact current manufacturer installation data.",
    "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."
    }
  ]
}