The pieces didn’t go together very well. The wrong size lag bolts were shipped with the door. The lag bolts for the drywall are too big and can cause a headache. Luckily I’m handy and went and purchased my own hardware and wall anchors. If you go by the plans sent with the door, mounting the rollers will run into a screw used to secure the door. The cost was too high for the extra pains that go along with assembly. But, it’s done and the wife is happy.