Once dried, the peats are carted to the croft and built into a large stack. These often resembled the shape of the croft house – broad, curved at each end and tapered to a point about 2 metres high. They varied in length from about 4 to 14 metres. Peat stacking also follows local customs and a well built peat stack can be a work of art. Peat stacks provide additional shelter to houses. A croft can burn as many as 15,000–18,000 peats in a year.