UK cladding calculator

Calculate softwood and Thermowood exterior wall cladding

Use our interactive cladding calculator tool below to calculate how much cladding you need to buy to complete your project.


  1. Select the type and size of cladding you'd like from the drop-down menus.
  2. Enter the length and width of your planned cladding area. If you are planning to clad several walls, use the 'add area' button to calculate how much cladding you need for your second, third and fourth walls.
  3. If required, you can adjust the amount of waste you'd like to include in the calculation. Our recommendation is to account for 10% waste.
  4. Scroll down to see your results. You can also download these in a printable PDF format.

Exterior timber claddings are a popular facade that can add warmth to a building and provide a sustainable option over brick or alternative finishes. At Metsä Wood, our exterior wall claddings include Thermowood® cladding and softwood cladding.

Both our Thermowood cladding and softwood claddings are sourced from sustainably managed forests. They are PEFC certified and are available from stockists nationwide.

Thermowood exterior cladding

Metsä Wood Thermowood exterior cladding is produced by heat treating Finnish grown pine and spruce to temperatures in excess of 200 degrees centigrade. The resulting product is an altogether more durable and stable timber, an ideal material for use in exposed areas such as external wall claddings and rainscreens. At Metsä Wood we have a range of standard and special order profiles which are popular in commercial applications. View ThermoWood Cladding profiles.

Softwood exterior cladding

Metsä Wood softwood exterior cladding is kiln dried for increased durability and machined with precision. This gives flexibility on the finish and style you want to achieve as it can be stained, varnished, painted and treated. At Metsä Wood we have a range of standard profiles to choose from. View Softwood Cladding profiles.

Planning a decking or flooring project?

Calculate how much decking or flooring you need to buy with our other interactive calculator tools.