7/8" Plywood to Millimeters — Conversion & Specifications
7/8" plywood in US trade terminology corresponds to 21mm in metric measurement. The exact thickness is 0.8268 inches. The standard metric equivalent is 21mm. When sourcing from Vietnamese manufacturers, specify the exact mm thickness for precision.
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 7/8" plywood in millimeters?
7/8" plywood corresponds to 21mm in metric. The standard metric equivalent is 21mm. Vietnamese plywood manufacturers produce to exact metric specifications.
▶What is the actual thickness of 7/8" plywood?
The actual measured thickness of nominal 7/8" plywood varies by origin. Import plywood from Vietnam is manufactured at exactly 21mm (0.8268"). North American domestic plywood may differ slightly due to sanding.
▶What is 7/8" plywood used for?
7/8" (21mm) plywood is commonly used for heavy-duty shelving, workbenches, structural panels.