B-Line SB596S23156SFB Eaton series open frame racks, Steel, Flat black powder coat finish, Double sided rack mounted shelf. Heavy duty, solid shelf, four mounting spaces required, Shelves and #12-24 mounting hardware included

Four mounting spaces (4U) are required for the SB596S23156SFB shelf, and its overall height is 6 inches. Plan the four spaces as contiguous, since it is a single solid shelf panel that bolts to the rails at that height.

No. The SB596S23156SFB ships with the shelf and #12-24 mounting hardware, so it drops into a rack with #12-24 tapped rails without a separate hardware order. If your rack uses square-hole cage nuts or 10-32 tapped rails, you will need hardware to match those threads instead.

The shelf measures 6 x 30 x 23.31 inches (height, length/depth, width). The 23.31 inch width is the overall panel dimension for a standard 19 inch EIA rack opening, where the mounting flanges sit outside the 19 inch rail span. The 30 inch depth is what matters most on an open frame rack, so confirm you have that much clear depth front to back.

Double sided means the shelf mounts to both the front and rear rails of an open frame rack rather than cantilevering off the front posts only. That is why it needs a four post or open frame rack with both front and rear mounting rails, and why it can carry heavier equipment than a single sided front-mount shelf. It is a solid steel shelf, not vented.

It is a solid steel shelf, with no perforations for airflow through the deck. For switches, amplifiers, or media converters that pull cooling air from below, a vented shelf is the better choice. Solid decks are the right pick for non-rack-mount gear, batteries, tools, or anything where you want a continuous flat surface.

Order Eaton B-Line SB596S23156SFB. That single MPN covers the shelf in flat black powder coat with the #12-24 hardware in the box; there are no finish or size options to specify.

The finish is flat black powder coat, the same finish used across the Eaton B-Line series open frame rack line, so it blends with black B-Line racks and accessories. If your installed racks are gloss black or anodized, expect a visible sheen difference rather than a color difference.

The shelf weighs 20.8 pounds on its own, before anything is set on it. Worth knowing for a one-person install: at 30 inches deep it is awkward to hold at height while starting screws into the rear rails, so a second set of hands or a temporary support clip makes the job easier.