How much HardiePlank® siding will I need and how can I do a rough estimate?
» There are approximately two planks to the square metre. Measure the width and height, in metres, of each wall to be clad. Multiply the two dimensions together to give you the area in square metres of each wall and then multiply this total by two to give you the total number of planks for each wall. Add all your walls up and this will be a reasonable guide to how many planks you need to order.
