Concrete Block Prices. The concrete block prices vary and you can find these from $1 to $400 depending on the quality and design you want. If you go to Home Depot site or Lowe’s websites, you will find the concrete block prices and details of all different dimensions of concrete blocks. Common Concrete Block Sizes Concrete Footer Blocks Lowes. Common 8 in x 16 actual 7 625 concrete piers footings for deck posts uk concrete deck block common 9 in x 10 14 actual concrete piers lowes precast blocks at keithmccluskey co concrete deck blocks lowes radechess 4 x handi block. The 16 in. x 8 in. x 4 in Concrete Block 33 lb. is manufactured to ASTM C 90 specifications and used in foundations and above-grade masonry walls. This heavy weight solid block is uniformly square and free of large chips. These heavy weight interlocking gray blocks are uniform in texture, size and color while being dimensional and accurate.