B-Line Eaton series open racks, Aluminum, #12-24 mounting hardware, 200 lb load capacity, Flat black powder coat, Center mount rack mounted shelf

Yes. The SB5961913AFB center mount shelf is 17.5 inches wide, which is the panel width that spans between the mounting rails of a standard 19 inch rack (19 inches measured across the rails themselves). It mounts with #12-24 hardware, the thread used on tapped-rail open frame racks.

Rated for 200 lb. The shelf itself is aluminum and weighs 3.3 lb, so the rating is usable capacity for the gear you set on it, not a combined figure you have to subtract the shelf from.

A center mount shelf hangs from the rack rails at its midpoint rather than at its front edge, so the load is balanced front to back across the rails. That is what you want on a two-post open frame rack, where there is no rear pair of posts to carry a cantilevered front-mount shelf. If you are working in a four-post enclosure and need full-depth support, a front-and-rear supported shelf is the better choice. The SB5961913AFB is the center mount version, 13 inches deep.

The shelf is 2 inches high, so it occupies a little over 1U of vertical rack space (1U is 1.75 inches). Plan on 2 rack units of clearance if you are stacking equipment tight above and below it.

Aluminum at a 200 lb rating handles typical closet equipment loads and keeps the shelf itself to 3.3 lb, which makes one-person installation on a ladder practical. Choose a steel shelf only if you are setting a single heavy item beyond that 200 lb rating or need the shelf to resist deflection under a concentrated point load.

It comes in flat black powder coat, the same non-gloss black used on most open frame telecom racks and cable management, so it blends with existing black rack hardware rather than standing out in a gloss or textured finish.