We bought this for a fairly heavy pantry door, 36" solid core hickory. The hardware is 5-star quality -- sturdy, and well worth the price. However, the installation instructions are somewhat incomplete and a little misleading -- otherwise I'd give it five stars. Eventually, I was able to figure out how to do the installation with substitute mounting screws from my local hardware store. The spacers on the rail did not align with our wall studs, and amazingly the included hardware packet had drywall anchors! We did not think it wise to mount something this heavy only into drywall. This amount of weight needs to be anchored into structural wood. As you can see in the photos, we made a surface mounted header and anchored it to the studs, then attached the door rail to the header.