RackSolutions Configurable Relay Rack Shelf - 20 in Vented

In this review the RackSolutions Configurable Relay Rack Shelf - 20 in Vented is evaluated for technicians and small IT shops that need a sturdy, shallow shelf for network and audio equipment. The bottom line: this shelf is a practical, low-cost solution when you need a vented surface with a fixed 20 in mounting depth and flexible screw hole options. The reviewer finds it especially useful for gear that is up to 17.7 in wide and for installations where the shelf may need to be flipped so the flanges face either up or down.

Key Features

• 20 in mounting depth: Provides a consistent shallow platform that fits tight racks and keeps gear close to the rack rails for neat cable runs and easy access.
• Vented top surface: Helps passive airflow for heat-sensitive components placed directly on the shelf, reducing hotspots in compact rack spaces.
• Threaded hole compatibility: Accepts both 12-24 and 10-32 threaded hardware so it works with a wide range of rack screws and mounting styles.
• Mounts up-side-down: The shelf can be installed with flanges up or down to accommodate different cable or support needs during installation.
• Compatible width: Sized to accept equipment up to 17.7 in (450 mm) wide, making it suitable for many non-rackmount devices and terminal boxes.

Who It's For

This shelf is aimed at network engineers, AV installers, and IT technicians who need a compact, vented rack shelf for shallow 2-post or relay rack installations. It is a good fit where space is limited and where equipment does not require full 19 in rackmount rails but still benefits from a secure surface and airflow.

Those who should look elsewhere include anyone planning to mount full-depth enterprise servers or devices wider than 17.7 in, and owners of 2-post racks with very narrow uprights of 5 in to 6 in, since this shelf is not compatible with those narrow upright widths.

Pros & Cons

Pros

• Shallow 20 in depth fits tight racks and simplifies cable routing in constrained spaces.
• Vented design improves passive cooling for equipment placed on the shelf.
• Dual threaded hole support for 12-24 and 10-32 increases compatibility with common mounting hardware.
• Can be mounted upside-down, offering installation flexibility for different setups.

Cons

• Not suitable for equipment wider than 17.7 in or for racks with 5 in to 6 in uprights, limiting use in some legacy 2-post systems.

Specifications

Product	20 in Vented 2Post Shelf
Mounting depth	20 in (508 mm)
Threaded holes	12-24 and 10-32
Orientation	Shelf will mount up-side-down
Compatible equipment width	Up to 17.7 in (450 mm)
Incompatible racks	2Post racks with 5 in-6 in wide uprights

Our Verdict

The RackSolutions 20 in Vented Relay Rack Shelf is a sensible, cost-effective choice for technicians who need a compact, ventilated surface for small to medium equipment. Its 20 in depth, vented top and dual-thread compatibility make it adaptable for a variety of install scenarios, and the ability to mount it upside-down adds practical flexibility. It represents good value where space and airflow are priorities, provided the equipment fits the 17.7 in width limit.

Frequently Asked Questions

Will this shelf fit full-width 19 in rackmount servers?
The shelf is intended for equipment up to 17.7 in wide, so full 19 in rackmount servers will not be fully supported on this shelf.

Can it be installed with the flanges facing up?
Yes, the shelf will mount up-side-down so the flanges can face either direction to suit cable routing or support needs.

What screw threads does it accept?
The shelf accepts both 12-24 and 10-32 threaded hardware for broad compatibility with common rack screws.