Calculate the number of concrete blocks needed for a project by determining the number of blocks to complete a row and the rows to reach the desired height. Standard blocks are 8 inches by 16 inches, including the mortar joints.Know More
To determine the number of blocks per row, a mason first measures the length of a wall in feet. He rounds any measurements over an even foot to the next number and determines the number of blocks each row requires by multiplying the measurement by 0.75. He calculates the number of rows by multiplying the height of the wall by 1.5. The total number of blocks to complete the project is the product of the blocks in a row times the number of rows. Concrete block suppliers recommend adding 5 to 10 percent to account for breakage and errors.
Manufacturers state the size of the block using width by height by length, so a 6 x 8 x 16 concrete block has a face size of 8 inches high and 16 inches long with a 6-inch width. While the face size remains the same for most concrete blocks, thickness varies but does not affect the number of blocks needed. If using blocks with a nonstandard face size, the mason converts the factors by dividing both height and width by 12.Learn more about Building Materials
To cut concrete blocks, mark the cut all the way around with chalk, score the cut with a hammer and chisel, and then set the block on sturdy, level ground. Hold a chisel perpendicular to the block at the score mark, and sharply hit the chisel with a 6-pound sledgehammer.Full Answer >
Walking is acceptable on newly formed concrete only after 24 hours have passed since it was poured. Even then, walking on the concrete before 48 hours has passed can still cause scuffing and marks on the surface.Full Answer >
Anyone planning to build a shed needs quality lumber and plywood, roofing materials, hardware parts such as nails and hinges, and building tools such as a hammer, screwdrivers, a saw, a meter, a framing square, line, stakes and a level. A carefully devised construction plan is vital; shed construction plans are easily obtained from home improvement stores.Full Answer >
A concrete floor should be about 4 inches thick if it is in a residential home or building. For a building supporting heavy loads, 5 to 6 inches is the recommended thickness. A good quality concrete floor will have even thickness throughout.Full Answer >