All classes of the Makoro Brick range meet the requirements of the BOS:28:2000 Standard for Shape, Appearance, Texture, Colour and Strength..
Nominal Dimensions of Masonry Units: Work Size ( mm )
Average tolerance of 32 units ( mm ) BOBS Spec
The warpage of any individual unit does not exceed 5mm;and
In not more that three units does the warpage exceed 3mm.
FBS and Engineering units
The warpage of any individual unit does not exceed 5mm.
The soundness of all units fall within the requirements of the BOS 28: 2000 Standard. No pop-outs observed in testing.
Water absorption in both FBS and FBX comply with BOS28:2000 Requirement at less than 15%