Convert floor or cladding area into linear metres of boards, including board width, length, and waste.
This calculator translates area into a practical purchasing result: how many linear metres of boards and how many pieces you need to order. It is especially useful for decks, timber floors, facades, and board-based cladding. Measure area with the floor area calculator.
Enter data and click Calculate.
Linear metres = (area ÷ board width) × (1 + waste/100). Pieces = ceil(linear metres ÷ board length), when board length is given.
You need 154.29 linear metres of boards
That equals 39 boards of 4.0 m
Linear metres show the scale of the purchase well, but the piece count is what tells you how many boards actually need to be ordered.
You need 320.83 linear metres
That equals 67 boards
On larger jobs, even a small change in board width can significantly change the total number of linear metres you need to buy.
You need 141.47 linear metres
That equals 59 boards
With narrow boards, the required linear metres grow quickly, which makes this calculator especially useful when comparing different formats.
It is the length of the material measured along one edge, without referring directly to total area. In practice, it helps convert square metres into the total board length you need to buy.
Because two boards with different widths will produce a different number of linear metres for the same area. The narrower the board, the greater the total length required.
Yes. Cuts, visual selection of timber, damage, and layout adjustments all make an exact “no-margin” result risky.
Linear metres are useful for technical planning, but piece count is more important for purchasing. That is why both values should be shown side by side.
No. It also works well for decks, timber facades, wall cladding, and many other projects where board width and board length matter.
The wider the board, the fewer linear metres are needed for the same area. It is one of the key parameters when comparing material options.
So the result can be converted from linear metres into the actual number of pieces to order. That is far more practical when buying from a supplier.
Most often, the floor area calculator is the natural companion if you are still measuring the total surface. In a broader renovation workflow, it also connects well with other material calculators.