The MacWall™ segmental block from Keystone is a high-strength, high-specification block which permits the construction of vertical walls up to 15m in height.

The MacWall™ block, available in a variety of colours and finishes is manufactured from 21MPa concrete and easily accommodates inextensible steel ladders, low strain geogrid reinforcement and double twist PVC coated steel wire mesh. The interlocking pin system allows for a positive connection between the front face and reinforcement.