This product is available in the following: Solid Step (4ft long): 6 43/48 x 13 37/48 x 47 1/4 (in) and the Terrace Step (5ft long): 5 22/24 x 19 11/16 x 59 1/16 (in). This step has riser blocks in the following size: 3 15/16 x 6 43/48 x 12 19/24 (in). **Please note that the riser blocks are ONLY compatible with the Solid (4ft) steps.* Valentia steps combine the elegance and sophistication of natural stone with the culture and ambience of the Mediterranean.