# Cable Management Tray Guide: Under-Desk Trays for a Tidy Home Office
> What a cable management tray is, the different types available, how to install one under a desk, and what to route through it to keep a home office cable-free.
**Category:** Storage & Cable Management  
**Primary keyword:** cable management tray  
**Published:** 2026-05-12  
**Last reviewed:** 2026-05-12  
**Parent pillar:** home-office-cable-management  
**Canonical URL:** https://smallhomeofficeideas.site/cable-management-tray/  
**Markdown URL:** https://smallhomeofficeideas.site/cable-management-tray/index.md
## Related Guides
- home-office-cable-management
- under-desk-cable-management
- cable-management-box
- cable-management-ideas
- desk-cable-management
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A cable management tray is the backbone of under-desk cable organization. It mounts flush to the underside of the desk, holds the power strip in place, and routes all cable runs horizontally so they stay off the floor and out of sight. This guide covers tray types, installation, and what to route through one. For a full overview of the complete cable management process — zones, routing order, and the right products for each desk type — see the [home office cable management guide](/home-office-cable-management/).

## Types of cable management trays

For a home office where the goal is to hide the power strip and clear the floor, an open mesh tray (J-shaped) mounted under the desk is the most practical option. It holds the power strip horizontally, keeps cables off the floor, and is easy to install with a screwdriver in under 20 minutes.

## How a cable management tray works in a desk setup

The tray creates a hidden cable highway under the desk surface:

1. **Power strip sits in the tray** — mounted horizontally across the back section of the tray
2. **Device cables run along the tray** — monitor power cables, laptop charger, USB hub — all routed horizontally in the tray toward the device they connect to
3. **Cables exit the tray upward** — through the open top of the tray and up to the desk surface at the nearest point to each device
4. **Mains cable exits the tray at the back** — the single cable from the power strip runs from the tray to the wall socket

The desk surface only shows each cable at the point where it plugs into the device. No cable runs across the desk surface; no cable runs along the floor.

## Installing a cable management tray

**What you need:** The tray, a screwdriver, and an awl or drill if your desk does not have pre-drilled holes.

**Steps:**

1. **Choose position** — mount the tray under the rear section of the desk, running left to right. Centre it or position it toward the monitor side where most cables exit.
2. **Hold the tray in place** — have someone hold it, or use tape temporarily while you mark the screw positions
3. **Mark the holes** — use a pencil through the tray's mounting holes to mark the desk underside
4. **Drill pilot holes** — use a small bit (2–3 mm) to prevent the desk surface from cracking. Check the desk thickness first — most desks are 25–30 mm; use short screws (15–18 mm) to avoid breaking through the surface
5. **Mount the tray** — attach with the provided screws; most trays include M4 machine screws or wood screws
6. **Load the power strip** — place the strip in the tray and secure it with the tray's strap or cable ties
7. **Route device cables** — bring each cable from the device down into the tray and along to the power strip

**If the desk cannot be drilled:** Look for a clamp-mount tray that attaches to the desk edge, or a tray with an adhesive mounting plate. Heavy-duty 3M VHB tape holds up to 5 kg on a smooth surface — check the tray weight plus content weight before relying on adhesive alone.

## What to put in the cable management tray

## Sizing the tray correctly

The tray should be slightly shorter than the desk is wide — leaving 5–10 cm of clearance on each side makes installation easier and leaves room for cables to exit the ends. For a 120 cm desk, a 90–100 cm tray works well.

Check the tray's depth (front to back) against the underside of your desk. A standard desk has 20–30 cm of usable space between the back of the desk and the rear edge of the drawer/apron section. Trays 10–15 cm deep fit in almost all desk configurations.

## Cable tray vs cable management box

A cable tray routes cables along a horizontal path; a cable management box conceals the power strip and adapters inside a lidded enclosure. The two work together in most setups:

- The **tray** routes cables from the wall entry point along the underside of the desk to the position beneath each device
- The **box** (if used) conceals the power strip and adapter cluster at one point in the tray run

For setups where concealing the power strip completely is a priority, combining a tray with a cable management box gives the cleanest result. See the [cable management box guide](/cable-management-box/) for details.