Common (230x110x76mm) utility bricks are predominantly used for internal walls, for supporting structures, or can be used externally when rendered or painted. Common Renders are non-load bearing and are mixed structurally sound bricks suitable for rendering. Common bricks are also available in standard, solid & paint grade. A standard internal wall, Commons are 230x110x76mm. Midland Brick Commons are quality tested in the Midland Brick NATA registered laboratory. All physical testing is carried out in accordance with Australian Standards AS/NZS4455 and AS/NZS4456.