Roof slates are available in various sizes, with the most common being 24" x 12" (600mm x 300mm). Half slates, which are smaller and more affordable, are also an option. When purchasing slates, it's essential to consider the quantity required, as wastage can be significant. A general rule of thumb is to add 10-15% to the total quantity to account for cuts and breakages.

Reclaimed slates are an excellent choice for those looking to reduce their environmental footprint. These slates have been salvaged from old buildings and can be reused, reducing the need for new materials. Reclaimed slates can be more expensive than new ones, but they offer a unique, characterful appearance that is hard to replicate.

The price of slate can vary depending on the type, quality, and quantity required. On average, you can expect to pay between £40-£100 per square meter for new slate, depending on the supplier and the specific product. Reclaimed slates can be more expensive, with prices ranging from £60-£150 per square meter.