Lumber Price Calculator
Turn the board feet you need into a realistic budget by adding waste, discount, sales tax and delivery to your price per board foot.
Lumber Price Calculator
Estimate lumber cost before you visit a sawmill, hardwood dealer, or home center — board feet times price per board foot, plus waste, tax, delivery, and any discount.
Enter your values and click calculate.
Formula & Example
Total cost = board feet × price/board foot × (1 + waste%) × (1 – discount%) + tax + delivery. Example: 50 board feet at $8/bf = $400 base; with 15% waste the material budget becomes $460 before tax and fees.
Typical Lumber Costs
Common softwoods like pine and fir run $1-$3 per board foot at most home centers; hardwoods such as oak or maple average $5-$10+ per board foot depending on grade and region. A basic 10×12 ft deck (5/4 deck boards, 2×8 joists at 16 in., two doubled 2×10 beams, 4×4 posts) adds up to roughly 450-550 board feet; a simple 8×10 garden shed needs 300-500 board feet for framing. Species, grade, moisture content (green vs. kiln-dried), and regional supply all move price — softwood framing lumber can swing 30-50% between seasons, and buying in late fall or winter often saves 10-20% versus spring peak demand.
Reference Table
| Project factor | Planning guidance |
|---|---|
| Simple shelves | 10% waste |
| Furniture | 15% waste |
| Cabinets | 15-20% waste |
| Rough slabs or defects | 20-30% waste |
Common Mistakes
- Comparing linear-foot pricing with board-foot pricing.
- Forgetting milling loss.
- Ignoring sales tax and delivery fees.
- Buying too little for color and grain matching.
Frequently Asked Questions
Lumber Price
What is price per board foot?
It is the cost for one board foot of lumber volume — the standard unit hardwood and rough lumber is priced by.
How much waste should I add?
Use 10-20% for most projects; go to 20-30% for rough slabs or boards with visible defects.
Does this work for plywood?
Plywood is usually sold by the sheet, not the board foot. Use the Plywood Load Capacity calculator for panel-level planning and price sheets directly.
How much does lumber cost per board foot?
Common softwoods like pine and fir run $1-$3 per board foot at most home centers. Hardwoods such as oak or maple average $5-$10+ per board foot depending on grade and region. Prices shift with supply — always use your current store price in the calculator for an accurate total.
How much does lumber cost for a typical deck or shed?
A basic 10×12 ft deck (5/4 deck boards, 2×8 joists at 16 in., two doubled 2×10 beams, 4×4 posts) adds up to roughly 450-550 board feet, which at $1-$3 per board foot is about $450-$1,650 before hardware. A simple 8×10 garden shed needs 300-500 board feet for framing. Enter your exact numbers in the Lumber Price calculator above for a project-specific total.
What drives lumber price changes?
Species, grade, moisture content (green vs. kiln-dried), and regional supply all affect price. Softwood framing lumber follows commodity futures and can swing 30-50% between seasons. Buying during late fall or winter often saves 10-20% compared to spring peak demand.
How Accurate Are These Calculators?
This calculator is a planning-level estimate. It is not engineering advice and not code approval. Real capacity and cost depend on species, grade, moisture content, defects, fastening pattern, support condition, and regional pricing. For floors, decks, stairs, or any load-bearing or code-regulated work, check your local building code and have a qualified engineer or inspector confirm the design before you build or buy.
Sources and Methodology
These are original Woodworking Advisor calculator guides combining standard beam-bending, deflection, and lumber-measurement formulas with conservative planning assumptions and clear limitations.
- Lumber prices are user-entered planning estimates; species, grade, length, and region all change real pricing. None of these tools are a substitute for engineered span tables or professional review on safety-critical work.
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