Product description is highly inaccurate. I chose this box spring over other options because the product description lists the distance between slats as 3 inches but they are 3.5" (attaching photo to show this). If this website wasn't so misleading I would have selected a different option and saved $50. As other people have noted the cover is tight but if you are patient and have help, you can get it zipped without ripping. This is my second time purchasing something and the actual product doesn't match the description so I will reconsider purchasing from Wayfair in the future. 

However, if you don't care how about the distance between slats, this box spring should be fine. It was easy to put together.