6' Hollow blocks standard ash 3.5 Mpa

Precast concrete hollow blocks are extremely versatile and durable. They offer cost effective and practical benefits for internal and external walls, houses and industrial buildings. Typically, you'll need 10 blocks per m2 (including 10mm mortar joints both horizontally and vertically). However, once you've calculated how many blocks you need for your project, you should also add a contingency of at least 10% to allow for breakages and wastage