The StackStone Collection features a 2-sided finish and the self-aligned, tapered stone design provides a structural interlock making straight walls, curves and corners easy to design and build. Maximum allowable height is 2.0 ft. Sold individually and per pallet. Stackstone Standard: 150 units/pallet. Each block is sized 8"x8"x4". Stackstone Corner: 48 units/pallet. Each block is sized 8"x11"x4". Stackstone Cap: 150 units/pallet. Each block is sized 8"x11"x4". Please allow 7-10 business days for processing and delivery. Special orders may take over a month.