PBM CB 19001 is an Architectural Block (Checker) cast in precast concrete, supplied in cement grey with an alternating raised​/​recessed checker pattern with a deep textured face. The face presents checker block - 390×140×190mm decorative CMU with three-dimensional checker pattern, supporting use as a decorative concrete masonry unit with strong shadow play across the face. Stated specifications include nominal dimensions 390×140×190mm, unit weight ~10.0kg per unit, coverage 13.5 pcs​/​m². Intended applications cover feature walls and decorative compound walls. Lay in running bond with mortar bedding, taking care to maintain alignment with a mason's line; verify support spacing per project structural detail. Available in Malaysia via PBM (Premier Building Material Sdn Bhd).