The Holden Colorado RG remains common on Australian roads, and one of the most practical upgrades for owners who regularly carry tools, cases or touring gear is an in-tub sliding tray. A sliding tray brings equipment stored near the front of the tub back toward the tailgate so you do not need to climb into the cargo area every time you need something.
This guide is specifically about the UniUte Sliding Tray for Holden Colorado RG 2012–2020 and the fitment checks to make before ordering.
First: This Is an In-Tub Sliding Tray
Searches for “Colorado tray” can refer to several different products. The UniUte product covered here is an in-tub sliding cargo tray; it is not a replacement alloy tray body, flat tray or tray-back conversion.
The current product is the Sliding Tray for Holden Colorado RG 2012–2020. The product is offered in plastic and aluminium variants. Use the product page for the current specifications, pricing and availability.
Why Add a Sliding Tray to a Colorado RG?
The Colorado tub is deep enough that equipment stored near the cab can become awkward to reach, especially once a hard lid or other cover is fitted. A slide-out platform lets you organise cargo in removable cases, boxes or tubs and bring the load toward you when needed.
This can be useful for:
- tradies carrying tool cases and equipment;
- touring setups with camping tubs and recovery gear;
- owners who want easier access without committing the tub to permanent drawer compartments; and
- mixed-use vehicles where the cargo layout changes regularly.
Holden Colorado RG Fitment: What to Confirm
1. Exact generation and year
The current UniUte sliding tray listing is for the Holden Colorado RG 2012–2020. Do not assume it fits an earlier Colorado generation or another ute based on appearance alone.
2. Tub and body configuration
Confirm the body and tub configuration shown on the product page before ordering. If the vehicle has been converted, modified or fitted with a non-standard tray, contact UniUte before purchase.
3. Existing tub liner
A factory or aftermarket liner can affect mounting and clearances. Over-rail liners in particular can change the usable space around mounting points. Follow the fitting instructions supplied with the tray and ask us if you are unsure.
4. Hard lid, tonneau cover or other tub hardware
If your Colorado already has a hard lid, cover, toolbox or other internal accessory, check where its brackets and clamps sit. A sliding tray needs sufficient room to move without interfering with other hardware.
Plastic vs Aluminium Sliding Tray
The Colorado RG sliding tray is currently available in plastic and aluminium variants. The best choice depends on the cargo you carry, preferred construction and the specifications of the current variants.
Rather than assuming both versions have identical ratings, compare the product-page specifications before ordering. Also remember that the weight of the tray itself contributes to the vehicle's total payload along with passengers, fuel and other accessories.
Sliding Tray vs Ute Drawers
A sliding tray and a drawer system solve different storage problems. Drawers provide permanent compartments for smaller items. A sliding tray preserves a larger open platform and works well when your gear already lives in cases, crates or storage tubs.
For a work ute that changes jobs during the week or a Colorado that also carries family and camping gear, the open platform can be easier to reconfigure.
Can a Sliding Tray Work With a Hard Lid?
Often, a sliding tray can be used with a hard lid where the mounting systems and internal clearances do not conflict. Compatibility should still be checked product by product.
UniUte also lists a Colorado RG hard-lid option, and our broader Holden Colorado RG Accessories Complete Guide covers the current vehicle-specific range.
Installation: What to Expect
Mounting requirements can differ depending on the tub liner and existing accessories, so use the supplied instructions for the exact tray rather than generic advice from another vehicle. Before drilling or modifying any part of the tub, confirm that the product instructions specifically require it.
If you prefer professional fitting, Melbourne customers can contact UniUte's Moorabbin workshop. Australia-wide customers can contact us before ordering if photos or measurements are needed to confirm the setup.
Using a Sliding Tray Safely
Always secure cargo appropriately before driving. A sliding tray improves access; it does not replace suitable tie-downs or vehicle load-restraint requirements.
Do not transfer a load rating from another tray or vehicle to the Colorado product. Check the specifications for the exact variant you purchase and keep the Colorado's overall payload and axle limits in mind.
Frequently Asked Questions
Does UniUte sell a sliding tray for the Holden Colorado RG?
Yes. The current vehicle-specific listing is for the Holden Colorado RG 2012–2020 and includes plastic and aluminium variant options.
Is this a replacement ute tray?
No. It is a sliding cargo platform designed to sit inside the existing tub. It is not an alloy tray-back or replacement body.
Can I use it with a tub liner?
Possibly, but the liner can affect mounting and clearance. Check the exact liner and fitting instructions before installation.
Can I use a sliding tray under a hard lid?
Often yes where the hardware does not conflict, but compatibility must be checked for the exact products and vehicle setup.
Where can I see other Colorado RG accessories?
Browse the Holden Colorado collection or read the existing complete accessories guide for the current model-specific range.
View the Holden Colorado RG Sliding Tray
See the current variants and specifications on the Holden Colorado RG Sliding Tray product page. If you have a liner, hard lid or modified tub, contact UniUte before ordering so the setup can be checked.