A: Rev-A-Shelf 's trays do not typically have a hole in the center of the tray for the screw of the drawer handle. Since most all cabinets do not come with handles attached to any door, especially the sink front door panels, you may have to countersink the screws so that the screw head sits flush or just below the cabinet panel. However, even though the screw head does pop out a little it still should not interfere with the tray itself. At least it will not affect its operation.
A: Home Depot Response to Flip Tray My tray did not have a center hole. The holes were on each end. With a sharp drill bit, I would think you could accomplish a new center hole as the plastic is only about 1/16th of an inch thick. An alternative would be to counter sick the screw head of your center handle so the front of the tray would fit snug or flush to the wood panel you are mounting it to.
A: I assume you have a 30" Wide Sink Base Cabinet and I assume it is an American Faceframe construction. I also assume you have (1) drawer front. The opening you are dealing with is probably is probably 27" assuming this is a cabinet with 1.5" Faceframe. So you need one long tip-out tray or 2-trays that will fit in a 27" or less opening. I recommend the LD-6591-24-11-1 which is a 24" wide single tray that will fit this opening.
A: No they are not self closing, I push my shelf to close it. It opens and closes pretty easily and nothing comes out if installed properly.
A: No they are not..they do close a little hard,but had nothing fell out.