UK Building Supplies, Your Construction Knowledge Hub

Work out how much sharp sand you need for block paving with a simple UK coverage table for 30mm, 40mm and 50mm laying courses, plus links to sharp sand, MOT Type 1 and kiln-dried jointing sand.

Not sure whether to use 10mm gravel or 20mm gravel? This guide explains the difference, where each size works best, and why 20mm gravel is often the stronger choice for driveways.