NavePoint Sliding Rack Vented Server Shelf 1U 19" 4 Post Rack Mount 13.75" (350mm) Deep Dimensions: 2.25"H x 18.25"W x 13.88"D 99 pound weight capacity Slotted venting Lip Shelf Extension: 8.88" Made of high quality cold-rolled steel with a powder coating Shelf can support up to 99lbs Maximum mounting depth of 15.75&#034; and a minimum mounting depth of 13.88&#034; Shelf extends 8.88&#034; Compatible with any 19&#034; enclosure 1 4-Post Sliding Shelf M6 screws, cage nuts, and washers