Just finished building this. Would not recommend and here's why:
1. The screws are not steel. While using the Allen key to tighten the bolt, the head fell off.
2. There was defect in the headboard where it joins the side bar and I had to bend it with a wrench in order for the washer and the head of the bolt to fit inside the spacing in the side bar.
3. Upon completion, the width of the frame is four inches wider than our Casper King mattress.

I need to order a new frame now.