Calculate with confidence.

Estimate flooring quantities by room size, board dimensions and layout pattern.

Estimate deck boards, linear feet and fastener quantities for a rectangular area.

Plan linear board cuts from a stock length and export a cutting list.

Calculate board feet, estimate costs by species, and plan lumber orders with multi-board support, log scale rules, and project presets.

Estimate full deck project costs with 5 shapes, 17 materials, railings, stairs, lighting, and regional labor rates.

Plan fence projects with 7 fence types, height options, gate & post cap add-ons, and regional pricing adjustments.

Calculate wood weight by species and size. 43 species with green and kiln-dried densities, batch load calculator, and vehicle capacity checker.

Calculate stair dimensions with rise & run, IRC/IBC code compliance checking, SVG diagrams, and material cost estimator.

Calculate cubic yards for slabs, footings, walls, steps, and curbs. Bag counts, truck loads, and cost estimates.

Calculate roof area with 6 shapes, pitch multipliers, material lists, and cost estimator for 8 roofing types.

Calculate gallons of paint or stain needed with multi-room batch mode, surface texture and wood absorption factors.

Calculate studs, plates, headers, joists, and subfloor for wall and floor framing. Includes nail schedules and cost estimates.

Calculate siding area with gable ends, estimate materials for 5 siding types, and compare 30-year cost of ownership.

IRC joist span tables for 6 species, beam sizing for lumber, LVL, and glulam with deflection checks.

Predict how much a board shrinks or swells with seasonal moisture change. 35 species with USDA tangential and radial shrinkage data, flatsawn vs quartersawn.

Count deck screws, hidden clips, joist hangers and ledger screws by deck size and joist spacing, with the right fastener metal for Ipe, cedar, treated and composite.

Pack required linear cuts into stock boards to reduce waste. Includes saw kerf, end trim, board-by-board layouts and material efficiency.

Calculate Equilibrium Moisture Content (EMC), acclimation time by lumber thickness, and regional climate humidity baselines.

Convert seamlessly between Board Feet, Linear Feet, Square Feet, MBF, and Cubic Meters with species weight & price calculation.

Calculate Surface Measure (SM), Board Footage (BF), and clear-face cutting yields for random-width hardwood bundles under NHLA rules.

Calculate screw pull-out withdrawal force and lateral shear capacity by species specific gravity using official NDS engineering formulas.

Interactive chart of 150+ wood species with search, filters, side-by-side comparison, and application guides.