We’ve had several emails asking us how to calculate square footage for concrete projects, so we thought putting together a visual might be of assistance. In it’s easiest form, these are the best ways to figure your square footage. It doesn’t matter if you’re trying to figure out measurements for polished concrete, epoxy flooring, acid staining, stamped or decorative concrete, concrete footings, faux finished concrete, driveways, porches, patios, decorative concrete or even sidewalks. You can even use it for figuring out how much paint you’ll need on your bedroom walls.
Calculating square footage properly allows us to determine the proper amount of concrete to use on your project. When bidding your job, we want to make sure we’ve calculated the proper amount of concrete so we don’t lose money. Calculating square footage not only helps in concrete, but it could help you figure out how much paint to use on your walls.
Calculating Square Footage on Rectangles and Triangles
Multiply length times width to find the number of square feet in a square or rectangular room. Remember to calculate unfinished areas and deduct them from the total.
To calculate the area of a triangle, multiply its base length by its height and divide that figure by two.
Calculating Square Footage on Odd Shaped Areas
The dimensions of nearly any driveway, sidewalk, patio or garage can be split into multiple shapes to make calculations easier. The area to the left can be split into a square and a triangle.
Calculating Square Footage on Circles and Octagon Shaped Areas
The area of a circle is determined by squaring its radius and multiplying that figure by 3.14 (Pi). If the radius of a circle is ‘r’, then its diameter is 2xr and area is Pi x r xr (Pi is the well known mathematical constant approximately equal to 3.14)
What we have been given is the diameter. So we have, 2 x r = 50 ft Therefore r = 25 ft Therefore The area must be = 3.14 x 25 x 25 sq. ft = 1962.5 sq. ft.
Calculate the area of an octagon by splitting it into a rectangle and triangles.
Be sure to give Harmon Concrete a call for all your concrete needs. For your added convenience, we provide an online bid request form. Fill out a simple form for the day and time most convenient to you and we’ll show up and provide a free estimate. It’s as simple as that! We want to be your concrete company for Northwest Arkansas. If you live just outside of the Northwest Arkansas area, give us a call anyway. We’ve poured concrete all over the United States and we welcome the opportunity to become your concrete company as well!