SearchAsk us anythingarrow rightWhat is the standard concrete block size?The concrete block sizes in the table are nominal and actual. The standard sizes are four, six, eight, ten, and twelve.Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERShop Recommended ProductsShop HomeX Recommended ProductsRELATED QUESTIONSWhat is the rebar spacing for concrete?Rebar should be placed at 4 in. spacing provides a steel area of 0.93 sq in., whereas placing the same bars wrong at 5-in. The steel area is 0.74 sq in.How many concrete blocks come in a pack?The concrete block standard is 100mm 7N, it costs 72 per pack.What is the minimum strength of concrete?The minimum strength of the concrete will be 4,500psi and the minimum strength will be 450psi.What size is number 11 rebar?The weight per unit length is 5.313 pounds per foot. There is aNominal diameter of 1.41 inches. 1.56 square inches is theNominal area.How deep do you cut concrete?The joints should be cut one-quarter to one-third the thickness of the slab. For a 6-inch-thick slab, that means cutting 1.5 to 2 inches deep.What size should a foundation block be?Standard wall blocks are 8 by 8 by 16 inches and have two flat sides. The block length is less than 16 inches to allow for a mortar joint. Corner blocks have three flat sides.