Lumber Board Foot Calculator
Calculate board feet for standard dimensional lumber (2x4, 2x6, 4x4, 6x6). Free online tool using actual dressed sizes and instant pricing estimates.
Lumber Calculator
Select a common lumber size or enter custom dimensions
Actual dimension (not nominal)
Remember: Nominal sizes (like 2×6) are larger than actual dimensions. A 2×6 actually measures 1.5" × 5.5" after drying and planing.
1× Boards
Actual 3/4" thick. Used for trim, shelving, and light projects.
2× Lumber
Actual 1.5" thick. Standard framing lumber for walls, floors, and decks.
4× Posts
Actual 3.5" thick. Used for posts, beams, and heavy structural work.
6× Timbers
Actual 5.5" thick. Heavy timbers for posts, beams, and landscaping.
Frequently Asked Questions
What's the difference between nominal and actual size?
Should I use nominal or actual dimensions?
How many board feet in a typical 2×4×8?
Specialized Calculators
Choose from our collection of specialized board foot calculators tailored for specific materials and applications
Need Additional Tools?
Explore our complete collection of SEO tools, AI software solutions, business applications, determinant math solvers, and engineering converters.
Insulation Board Foot Calculator
Calculate insulation board feet and coverage area for fiberglass batts, rigid foam board, and cellulose. Includes total R-value calculations.
Tree Board Foot Calculator
Estimate board feet and timber yield from standing trees based on DBH (diameter at breast height), merchantable log height, and species waste factors.
Standing Trees Board Foot Calculator
Calculate total board feet for standing tree stands, timber cruising, basal area, and forest inventory volume by diameter class.
General Wood Volume Calculator
Calculate board feet, cubic volume, and estimated weight for hardwoods, softwoods, and exotic species. Instant wood volume calculations.
Plywood Board Foot Calculator
Convert 4x8, 4x4, 5x5 plywood sheets to board feet and cubic feet volume. Calculate cost per board foot for CDX, OSB, and cabinet grade plywood.
Log Scaling Board Foot Calculator
Calculate log volume and board feet using Doyle Log Rule, Scribner Dec C, and International 1/4 inch Log Rules for sawmill timber scaling.
Lumber Board Foot Calculator
Calculate board feet for standard dimensional lumber (2x4, 2x6, 4x4, 6x6). Free online tool using actual dressed sizes and instant pricing estimates.
Spray Foam Board Foot Calculator
Calculate spray foam board feet, square footage, R-value, and DIY kit requirements for open cell and closed cell spray foam insulation.
Wood Weight Calculator
Calculate wood weight from board feet and species density. Convert oak, pine, maple, walnut, green vs kiln-dried lumber weights for shipping & load estimates.
Wall Stud Framing Board Foot Calculator
Calculate studs, top/bottom plates, headers, and total board feet for wall framing. Estimate framing lumber costs for 16 inch and 24 inch OC studs.
Board Feet Calculator Philippines
Calculate board feet (BDFT) for Philippine lumber standards (cm, meters, inches). Supports Narra, Mahogany, Yakal rates with ₱ cost estimates.
Deck Board Calculator
Calculate deck boards, linear feet, and costs
Cubic Feet Calculator
Calculate cubic feet, cubic yards, and board feet
🔗 Explore More Specialized Volume Calculators
Calculate board feet for logs, trees, plywood, insulation, or wall framing with our specialized tools: