Lumber Warp & Bow Tolerance Calculator
Calculate the maximum allowable bow or warp under common grading rules: typically 1/4 inch per 8 ft for select boards.
Max Allowable Bow
0.313 in
Per-8-Ft Tolerance
0.25 in
Calculate the maximum allowable bow or warp under common grading rules: typically 1/4 inch per 8 ft for select boards.
Max Allowable Bow
0.313 in
Per-8-Ft Tolerance
0.25 in