Sydney Store: 42 Lisbon St, Fairfield East, NSW 2165 Melbourne Store: 33-37 Deans Court, Dandenong South, VIC 3175 Perth Store: 45 Walters Dr, Osborne Park, WA 6017 Brisbane Store: 18 Griffin Crescent, Brendale, QLD 4500
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Undertray Toolboxes

Maximise your vehicle’s footprint by turning dead space into secure storage with an aluminium undertray toolbox. Built from 2.5mm alloy with TIG-welded seams, these are a weather-sealed home for recovery gear and trade tools without taking up an inch of your main tray.

Chivalry aluminum tapered under tray boxes with lockable lids, designed for secure and compact storage
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Why every tray needs an undertray toolbox

Most tray setups have significant empty space behind the rear wheels that usually just collects mud. Installing a ute undertray toolbox provides a dedicated spot for heavy items like chains, straps and jacks. By moving weight here, you actually help lower the vehicle’s centre of gravity for better handling.

At Chivalry, we build our undertray toolboxes using 2.5mm alloy and precision TIG welding. Unlike cheap, thin-walled alternatives, these can take a beating from road debris and rocks. The weather-sealed doors ensure your gear stays dry even when driving through heavy rain or crossing shallow rivers.

Our tapered undertray toolbox models are specifically shaped to preserve your departure angle, critical for off-road touring or navigating steep driveways on-site. You get the benefit of extra storage without worrying about the box clipping obstacles when entering or exiting a challenging incline or a steep off-road track.

Upgrade your ute with undertray toolbox today

At Chivalry, we don’t just source parts; we design and manufacture our own gear in our own factories. This means we deliver unmatched expertise and value for money, ensuring you get a professional-grade undertray toolbox without the middleman markup.

Our customer-centric service means we’re here to help you find the exact fit for your specific vehicle. Browse this range online today or reach out to us at one of our showrooms to talk shop with the experts.Beyond our undertray toolboxes, we offer a massive ecosystem of 5052-grade aluminium gear and accessories. Need the foundation of a new build? We offer ute trays, canopies, canopy-tray combos and full service bodies for your fleet. Our storage solutions extend to full-size toolboxes, high-capacity truck toolboxes, slide drawers and specialised dog boxes.

FAQS

Undertray Toolbox

  • How do I install an under tray toolbox?

    Installation involves mounting the box directly to the underside of the tray’s subframe. You’ll need to position the box behind the rear wheel, so there’s enough clearance for the suspension and mudguards. We recommend using high-tensile bolts and large washers to distribute the load across the tray floor. If you aren’t comfortable with DIY, we can recommend professional fitters for a secure, vibration-free mount for your undertray toolbox and guards.

  • What should I put in an undertray toolbox on a ute tray?

    These boxes are the perfect home for items you don't want cluttering your main tray but need quick access to. Most owners use them for recovery gear like snatch straps and shackles or heavy trade tools like tow balls, wheel braces and jacks. Because they’re weather-sealed, they’re also ideal for a small undertray toolbox and drawer setup containing oily rags, grease guns or wet gear that you’d rather keep out of your clean canopy.

  • Should I choose a square or tapered undertray toolbox?

    Choosing between a square or tapered undertray toolbox usually depends on your vehicle's use case. Square boxes offer slightly more internal volume, making them great for tradies on flat roads. But if you do any off-roading or touring, a tapered design is essential. The angled bottom provides much better ground clearance and protects your departure angle, so the box doesn’t hit the ground when driving through steep washouts or over rocky terrain.

  • How do I maintain aluminium undertray toolboxes in coastal environments?

    While 5052 aluminium is naturally corrosion-resistant, road salt and grime can build up in the hinges and seals over time. We recommend hosing the boxes down with fresh water after a beach trip or a muddy day on the site. Occasionally applying a silicone-based lubricant to the stainless steel piano hinges and the Whale Tail lock mechanism will keep the doors operating smoothly and the seals watertight for years.

  • How do I know if a toolbox will fit my tray overhang?

    Our boxes are designed to be as universal as possible, but you must measure the distance between your rear wheel arch and the end of your tray. We offer various lengths from 750mm to 1080mm to suit different tray overhangs. For the best result, ensure the box aligns with your undertray toolbox and guards to prevent road spray from entering the door area. If unsure about fitment, our staff can provide exact measurements.

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