Plywood and drywall sheets: 4 × 8 ft at actual thickness (3/4 in plywood = 23/32 in) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/plywood-and-drywall/  (CC BY 4.0)
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)
Catalog version: 2026-10-20

Sizes: see table below
- Sheets 48 × 96 in (drywall also 48 × 144 in).

material  nominal_in  actual_in  actual_mm
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

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- 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/
- ASTM: ASTM C1396 Gypsum board — standard — ASTM; dimensions are facts [verify license at link] — https://www.astm.org/c1396_c1396m-17.html

Free files (CC BY 4.0, Xem Studio; STEP + STL, 13 parts): https://xemstudio.com/files/hardware/plywood-and-drywall/index.json
API: https://xemstudio.com/api/geometry?object=plywood-and-drywall