I wasn't expecting it to be perfect being it is a Plastic Shed. Some things during the assembly were off, like page 30 installing the metal support needed to go higher then the photo listed it, the 2nd photo show it better. I chose two of these kits as it was a prefect fit for our carport. The bottom of the window and it's other side like the rear c2 triangle should be interlocking like the rest of the kit! Despite these issues with the fit, it was not bad when it was done!