{
  "slug": "framing-studs",
  "title": "Wall Framing Calculator",
  "heading": "Stud, Plate & Framing Calculator",
  "category": "other",
  "url": "https://www.revenuelab.fyi/toolbox/framing-studs",
  "summary": "Stud count, plates, and lumber cost for a stud wall.",
  "description": "Studs at 16 in on center is the residential default; 24 in on center saves lumber but needs thicker sheathing and drywall to avoid bowing.",
  "formula": "Studs = wall length ÷ spacing + 1 + corners/openings allowance.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=framing-studs",
  "inputs": [
    {
      "id": "length",
      "label": "Wall length",
      "kind": "number",
      "hint": null,
      "default": 40,
      "unit": "ft",
      "min": 1,
      "max": null
    },
    {
      "id": "spacing",
      "label": "Stud spacing",
      "kind": "number",
      "hint": null,
      "default": 16,
      "unit": "in",
      "min": 12,
      "max": 24
    },
    {
      "id": "height",
      "label": "Wall height",
      "kind": "number",
      "hint": null,
      "default": 8,
      "unit": "ft",
      "min": 6,
      "max": null
    },
    {
      "id": "openings",
      "label": "Doors + windows",
      "kind": "number",
      "hint": null,
      "default": 3,
      "unit": null,
      "min": 0,
      "max": null
    },
    {
      "id": "price",
      "label": "Price per stud",
      "kind": "number",
      "hint": null,
      "default": 4.2,
      "unit": "$",
      "min": 0,
      "max": null
    }
  ],
  "outputs": [
    {
      "id": "studs",
      "label": "Studs needed",
      "format": "number",
      "hint": null,
      "primary": true
    },
    {
      "id": "cost",
      "label": "Framing lumber cost",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "base",
      "label": "Field studs",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "extra",
      "label": "Extra studs for openings",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "plateFt",
      "label": "Plate lumber (linear ft)",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "sheathing",
      "label": "Sheathing sheets",
      "format": "number",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Wall length: 40 ft",
      "Stud spacing: 16 in",
      "Wall height: 8 ft",
      "Doors + windows: 3",
      "Price per stud: 4.2 $"
    ],
    "outputs": [
      "Studs needed: 43",
      "Framing lumber cost: $244",
      "Field studs: 31",
      "Extra studs for openings: 12",
      "Plate lumber (linear ft): 120",
      "Sheathing sheets: 10"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter wall length (ft).",
      "Enter stud spacing (in).",
      "Enter wall height (ft).",
      "Enter doors + windows.",
      "Enter price per stud ($).",
      "Read your studs needed on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "length": 24,
        "spacing": 12,
        "height": 8,
        "openings": 2,
        "price": 2.52
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "length": 40,
        "spacing": 16,
        "height": 8,
        "openings": 3,
        "price": 4.2
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "length": 64,
        "spacing": 24,
        "height": 8,
        "openings": 5,
        "price": 6.720000000000001
      }
    }
  ],
  "limitations": [
    "Estimates assume standard, average conditions — local rules, pricing, and materials vary.",
    "Results are rounded for readability; add a buffer before ordering, booking, or committing.",
    "Double-check anything with a real cost attached against a local quote."
  ],
  "faq": [
    {
      "q": "How does the stud, plate & framing calculator work?",
      "a": "Studs at 16 in on center is the residential default; 24 in on center saves lumber but needs thicker sheathing and drywall to avoid bowing. The underlying maths is: Studs = wall length ÷ spacing + 1 + corners/openings allowance."
    },
    {
      "q": "What do I need to enter?",
      "a": "5 values: wall length, stud spacing, wall height, doors + windows, and price per stud. Each field starts with a sensible default, so you can change one number at a time and watch the result move."
    },
    {
      "q": "What does the studs needed result mean?",
      "a": "It is returned as a whole number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds."
    },
    {
      "q": "Is this calculator free, and do I need an account?",
      "a": "Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser."
    },
    {
      "q": "How accurate is the result?",
      "a": "It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary."
    },
    {
      "q": "Who is this tool for?",
      "a": "It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/board-foot",
    "https://www.revenuelab.fyi/toolbox/drywall-calculator"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Wall Framing Calculator (https://www.revenuelab.fyi/toolbox/framing-studs)"
}