Calculate board feet and number of lumber pieces for framing, decking, and general construction projects.
total board feet needed
| Board Feet per Piece | 5.33 BF |
| Total Board Feet | 53.3 BF |
| With Waste | 61.3 BF |
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Board Feet = (T" × W" × L ft) ÷ 12
Total BF = Board Feet × Pieces × (1 + waste%)
Studs = (Wall Length ÷ Spacing) + 1
A board foot = 1 ft × 1 ft × 1 inch thick. Formula: (thickness in" × width in" × length ft) ÷ 12.
A 2×4 is actually 1.5" × 3.5". A 2×6 is 1.5" × 5.5". Lumber is sold by nominal size.
Add 15% for standard framing. Add 20% for complex cuts. Add 10% for simple decking.
For 16" OC spacing: (wall length in ft × 0.75) + 1. For 24" OC: (wall length ÷ 2) + 1.
Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.