Measure Twice. Cut Once.
Precision calculators for woodworking, carpentry, and lumber estimation.
Lumber Yard
PurchasingBoard Foot Calculator
Calculate board feet and total cost for hardwood lumber. Supports standard thickness (4/4, 8/4) and random widths.
Launch Tool →Lumber Optimizer
Cut list optimization. Figure out exactly how many boards to buy and how to cut them to minimize waste.
Launch Tool →Visual Cut Planner
Drag and drop parts onto a virtual 4x8 sheet. Visualize your cuts before you buy.
Launch Planner →The Workshop
FabricationConstruction Calculator
Feet-Inch-Fraction math parser. Add dimensions, subtract offsets, and solve right triangles instantly.
Launch Tool →Cutting Board Designer
Visual pattern maker. Design end-grain or edge-grain boards and generate a cut list automatically.
Launch Tool →Cabinet Door Calculator
Calculate rail and stile lengths for shaker doors based on opening size and overlay.
Launch Tool →Drawer Box Calculator
Generate cut lists for drawer fronts, backs, sides, and bottoms based on your opening size.
Launch Tool →Crown Molding Calculator
Get exact Miter and Bevel angles for compound cuts (Flat or Nested).
Launch Tool →The Shelf Sagulator
Will it bend? Calculate shelf sag based on wood species, thickness, and span.
Launch Tool →Reference Library
DatabasesWood Species Database
Searchable Janka hardness and density chart. Compare properties of 20+ common lumber species.
Open Database →Screw & Fastener Chart
Find the right drill bit sizes for pilot holes and clearance holes (Hardwood vs Softwood).
Launch Chart →Framing & Outdoor
ConstructionDecking Calculator
Estimate deck boards and fasteners based on square footage and joist spacing.
Launch Tool →Construction Math
Feet-inch arithmetic, triangle solutions, and roof pitch helpers for framing layout in the shop or on site.
Launch Calculator →Guides
LearnBoard Feet & Nominal Thickness
How hardwood yards invoice volume — and why 4/4 is not the thickness off the planer.
Read Guide →Cut Lists, Kerf & Yield
Pack parts into real stock lengths without forgetting blade kerf and end trim.
Read Guide →All Woodworking Guides
Cabinet door math, shelf deflection, and more long-form notes tied to these tools.
Browse Guides →