B-Line Eaton series open racks, Aluminum, #12-24 mounting hardware, Three mounting spaces required, Mount to any flat surface, Telco gray powder coat

Plan for three mounting spaces (3U) on the rack. That is the vertical space the shelf consumes once it is bolted in, so measure your remaining open frame space before ordering.

It uses #12-24 mounting hardware, which is the common thread on B-Line and other tapped-rail open frame racks. If your rack rails are square-hole rather than tapped, you will need #12-24 cage nuts to match.

The shelf itself weighs 3.8 lb because it is aluminum rather than steel, so it adds very little dead load. It is single sided, meaning it is supported at the front rails only, so keep the equipment you set on it light and close to the rails rather than cantilevered out to the 15 in depth.

This one is a solid shelf, so it gives a continuous flat surface for setting equipment but does not pass air vertically through the shelf. If you are stacking gear that relies on bottom intake or top exhaust directly through the shelf plane, a vented shelf is the better choice. For switches, converters, or a laptop shelf in an open frame rack, solid is fine since the frame is open on all sides anyway.

It comes in telco gray powder coat, the standard B-Line open rack color, so it matches telco gray frames and accessories already in the room. Only one color is offered on model SB747V1915ATG.

Yes, it can mount to any flat surface as well as to rack rails, which lets you use it as a wall or backboard shelf in a small telecom closet where there is no full frame. You supply the appropriate fasteners for the surface.

The shelf is aluminum with a powder coat finish, so it will not rust the way a bare or painted steel shelf does in humid rooms. Aluminum also keeps the weight down at 3.8 lb, which matters on wall-mounted or lightly anchored frames.