Clamp Pressure Calculator — Glue-Up Force
Determine clamp force and number of clamps needed for glue-ups.
Length × width of joint
How We Calculate This
Total force (kg) = Pressure (kPa) × Area (m²) ÷ 9.81
Clamps = Total force ÷ Force per clamp (~250kg for F-clamps)
Softwood needs 350-700 kPa. Hardwood needs 700-1050 kPa.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify measurements and material quantities before cutting or purchasing.