21mm Plywood to Inches — Conversion & Specifications
21mm plywood equals 0.8268 inches (approximately 53/64"). In US lumber trade terminology, 21mm plywood is sold as 7/8" plywood. Common applications include heavy-duty shelving, workbenches, structural panels.
21mm Plywood Quick Reference
| Metric Thickness | 21 mm |
| Exact Inches | 0.8268" |
| Nearest Fraction | 53/64" |
| US Trade Name | 7/8" |
| 32nds of an Inch | 26/32" |
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▶What is 21mm plywood in inches?
21mm plywood is exactly 0.8268 inches. The nearest fractional inch is 53/64", and in US lumber yards it is typically sold as 7/8" plywood.
▶Is 21mm the same as 7/8" plywood?
7/8" is the US trade name for 21mm plywood. While 7/8" is the nominal size, the actual measured thickness is 0.8268 inches (21mm). Import plywood from Vietnam is manufactured to exact metric dimensions.
▶What is 21mm plywood used for?
21mm (7/8") plywood is commonly used for heavy-duty shelving, workbenches, structural panels.
▶How thick is 21mm plywood in 32nds of an inch?
21mm plywood is approximately 26/32 of an inch (53/64"). For precision woodworking, the exact measurement is 0.8268 inches.