How Do You Calculate A Concrete Pad Around A Rectangle?
Concrete pads, or concrete slabs, are used for a variety of purposes, including foundations, patios and covering high-traffic areas where grass would turn into mud, such as around the grill in the back yard or the side of the house where the trash cans are housed. Calculating how much concrete you need to do the job is usually a matter of figuring out the cubic footage of your area (the length and width of the slab, times the depth into the ground). But if you have an existing rectangular area in the middle of the space where you want to place your concrete slab, you’ll need to perform a couple of minor calculations to come up with the correct number of concrete bags to buy. Measure the length and width of the slab you want to build. Ignore the rectangular area in the middle of your project when you take these measurements. For example, let’s say you want to build a 20-foot-square slab. Measure the rectangular area you want to put your slab around. For example, let’s say you have a 5-f
