{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "plywood-and-drywall",
 "name": "Plywood and drywall sheets: 4 × 8 ft at actual thickness (3/4 in plywood = 23/32 in)",
 "kind": "standard",
 "category": "Hardware",
 "group": "Building materials",
 "year": null,
 "question": "How thick is 3/4 inch plywood really?",
 "tags": [
  "plywood",
  "drywall",
  "sheet goods"
 ],
 "aliases": [
  "3/4 plywood actual thickness",
  "plywood thickness chart",
  "drywall thickness",
  "4x8 sheet cad"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
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 "free_files": 13,
 "url": "https://xemstudio.com/objects/plywood-and-drywall/",
 "sheet_txt": "https://xemstudio.com/objects/plywood-and-drywall/sheet.txt",
 "sheet": {
  "basis": "US sheet goods: plywood sold by nominal thickness is 1/32 in under (PS 1 / PS 2 performance-category sizes); gypsum board at its nominal thickness (ASTM C1396)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Sheets 48 × 96 in (drywall also 48 × 144 in)."
  ],
  "table": {
   "columns": [
    "material",
    "nominal_in",
    "actual_in",
    "actual_mm"
   ],
   "rows": [
    [
     "plywood",
     "1/4",
     0.2188,
     5.56
    ],
    [
     "plywood",
     "3/8",
     0.3438,
     8.73
    ],
    [
     "plywood",
     "1/2",
     0.4688,
     11.91
    ],
    [
     "plywood",
     "5/8",
     0.5938,
     15.08
    ],
    [
     "plywood",
     "3/4",
     0.7188,
     18.26
    ],
    [
     "drywall",
     "1/4",
     0.25,
     6.35
    ],
    [
     "drywall",
     "3/8",
     0.375,
     9.52
    ],
    [
     "drywall",
     "1/2",
     0.5,
     12.7
    ],
    [
     "drywall",
     "5/8",
     0.625,
     15.88
    ]
   ]
  }
 },
 "sheet_text": "Plywood and drywall sheets: 4 × 8 ft at actual thickness (3/4 in plywood = 23/32 in) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/plywood-and-drywall/  (CC BY 4.0)\nBasis: US sheet goods: plywood sold by nominal thickness is 1/32 in under (PS 1 / PS 2 performance-category sizes); gypsum board at its nominal thickness (ASTM C1396)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Sheets 48 × 96 in (drywall also 48 × 144 in).\n\nmaterial  nominal_in  actual_in  actual_mm\nplywood  1/4  0.2188  5.56\nplywood  3/8  0.3438  8.73\nplywood  1/2  0.4688  11.91\nplywood  5/8  0.5938  15.08\nplywood  3/4  0.7188  18.26\ndrywall  1/4  0.25  6.35\ndrywall  3/8  0.375  9.52\ndrywall  1/2  0.5  12.7\ndrywall  5/8  0.625  15.88\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- APA: Performance category and nominal thickness of plywood (PS 1 / PS 2) — standard — APA; dimensions are facts [verify license at link] — https://www.apawood.org/\n- ASTM: ASTM C1396 Gypsum board — standard — ASTM; dimensions are facts [verify license at link] — https://www.astm.org/c1396_c1396m-17.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 13 parts): https://xemstudio.com/files/hardware/plywood-and-drywall/index.json\nAPI: https://xemstudio.com/api/geometry?object=plywood-and-drywall\n",
 "sources": [
  {
   "publisher": "APA",
   "title": "Performance category and nominal thickness of plywood (PS 1 / PS 2)",
   "url": "https://www.apawood.org/",
   "formats": [
    "standard"
   ],
   "license": "APA; dimensions are facts",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "ASTM",
   "title": "ASTM C1396 Gypsum board",
   "url": "https://www.astm.org/c1396_c1396m-17.html",
   "formats": [
    "standard"
   ],
   "license": "ASTM; dimensions are facts",
   "license_verified": false,
   "hosted": false
  }
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  "tolerance_mm": null
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 "related": [
  "dimensional-lumber"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "3/4 in plywood?",
   "a": "23/32 in (18.26 mm)."
  }
 ],
 "files_license": null,
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