After looking at this trash can on the simplehuman website, I was uncertain if I had enough space under my sink to install it. The simplehuman site suggests you need 20" of depth for it to fit. My sink cabinet is standard depth, but the shut-off valves for my sink's water lines come up through the floor of the cabinet, limiting the depth to 17.75". Because Wayfair lists this item at 17.7" deep, I took a chance on it. I am thrilled to report that not only did it fit in the 17.75" space, there may still be a half-inch-or-so of wiggle room. I could not be happier! I really appreciate that Wayfair offered their own specs and not the manufacturer's in this case. I may not have ordered otherwise.