There are many options to consider when specifying commercial carpet, and it’s important to know what to look for when it comes to the backing. Whether you’re specifying carpet for the first time, or you’re investigating why your carpet is failing, we've got you covered. It’s the reason we created this blog in the first place.Color, texture, type… always things to consider for your carpet purchase. But if you flip it over, you’ll find something else important — the backing. So what exactly is carpet backing? The underside of a carpet is also called the backing. It secures the tufts and gives the carpet additional strength and dimensional stability. Most carpets have a double backing: the primary backing – where the yarn is tufted into, and the secondary backing which is the outer material.