Lumber Calculator
Calculate lumber requirements for framing, decking, and construction projects. Get accurate material lists and cost estimates.
Project Information
Enter your project details to calculate lumber requirements
Common Lumber Sizes
2×4: Most common framing
2×6: Wider for insulation
2×8: Floor joists
2×10: Large joists
4×4: Posts and columns
Spacing Standards
16" OC: Standard framing
24" OC: Roof rafters
12" OC: Heavy loads
8" OC: Fence posts
19.2" OC: Metric spacing
Tips
• Add 10% waste factor
• Check local lumber sizes
• Consider grade requirements
• Plan for delivery
• Store lumber properly