The way these cabinets have been designed, it would be difficult to assemble them incorrectly. The alignment of the screw holes, edges and squareness of cuts are flawless! Completed door and hinge alignment a snap! I almost degraded to 4 stars, due to the slight scuffing and chips. They were packed tightly, but not much protection on cabinet faces to protect them in shipping. These cabinets were installed in my garage, so I wasn't as finicky as I would have been if I were as concerned about the aesthetics.