Carpentry & Timber Calculators
Plan timber quantity from area, length, board dimensions, spacing, waste and purchase size.
Core calculators
Decking Calculator
Boards, gaps, waste and purchase cost.
Fence Calculator
Panels, posts and rails.
Linear Timber
Required length to whole stock lengths.
Timber Boards
Area, board size and whole-board quantity.
Posts & Rails
Fence bays, posts, rails and spare allowance.
Timber Cost
Quantity, waste, supplier price and total.
Planning guides
Planning workflow
Measure area or length → choose timber dimensions → calculate base quantity → add visible waste → round purchase quantity up → apply your own supplier price.
Boundary
These tools estimate quantities and costs from values you provide. They do not select structural member sizes or determine project-specific engineering requirements.