Lumber Calculator 📏 Lumber Calculator Total Linear Feet Needed Waste Factor 10% – Standard 15% – With Angled Cuts 20% – Complex Framing Standard Lumber Length (feet) 8 ft 10 ft 12 ft 16 ft Price per Foot (optional, $) Calculate Lumber Needs Results: 0 Pieces Needed 0′ Total Feet w/ Waste $0.00 Estimated Cost 0′ Waste