Whether you’re a contractor, hauler, or weekend warrior, having the right toolbox on your truck or trailer can make all the difference in productivity and peace of mind. But with so many sizes, styles, and mounting options available, how do you know what’s right for your setup?
This guide will walk you through the key factors to consider — so you get a toolbox that fits your truck, your tools, and your workflow perfectly.
1. Know What You’re Storing
Start by taking stock of your tools and gear. Are you carrying hand tools, power tools, straps, fluids, or specialty items like welding equipment?
Ask yourself:
- Do I need compartments or open storage?
- Are my items heavy-duty or delicate?
- How often do I access them — daily or occasionally?
Pro Tip: Lay your tools out and measure their total footprint before picking a box
2. Measure Your Truck Bed or Trailer Carefully
Before choosing a size, measure the available space on your rig:
- Width (across bed or rails)
- Length (front to back of bed or trailer)
- Depth (height you can spare without blocking visibility or function)
Avoid covering tailgate latches, fuel filler caps, or electrical hookups.
3. Choose the Right Toolbox Mounting Style
There are several popular styles, each suited for different truck types and uses:
Crossover Toolboxes (Saddle Boxes)
- Mount across the truck bed, behind the cab
- Supported by the side rails without touching the floor
Best for: General contractors, mechanics, and everyday access
Chest Toolboxes
- Sit on the bed floor, not above the rails
- Offers more internal space, but takes up bed length
Best for: Storing large tools or equipment
Side-Mount Toolboxes
- Bolt to the side rails, accessible from outside the truck
Best for: Tradespeople needing quick access
Underbody Toolboxes
- Mount underneath trailers or flatbeds
- Maximize storage without using surface space
Best for: Flatbeds, utility trailers, and commercial rigs
Top-Mount Toolboxes
- Bolt to the top of the side rails
- Keeps the bed open while providing extra tool space
Best for: Haulers or fleets who need overhead storage
Raises overall vehicle profile (watch for height limits)
4. Don’t Forget Weatherproofing and Security
Size and mount are just the beginning. Make sure your toolbox has:
- Weather seals to keep moisture and dust out
- Rust-resistant material (aluminum or powder-coated steel)
- Locking mechanisms (mechanical or smart-enabled)
- Drain holes or trays to deal with spills
If you’re in a coastal or rainy area, aluminum may be your best bet.
5. Balance Capacity and Weight
A larger toolbox might hold everything — but it also adds payload weight, which can affect:
- Fuel economy
- Suspension wear
- GVWR (gross vehicle weight rating)
Never overload your truck or trailer beyond its rated capacity — even with a great toolbox.
Trion Products: Built for the Job, Fitted for Your Truck
At Trion Products, we design toolboxes in a variety of sizes and styles, including crossover, side-mount, underbody, and more — all crafted with durable materials, reinforced locks, and weather-tight seals.
Need help choosing the right fit? Our team can guide you based on truck make/model, hauling needs, and budget.
Checklist: What to Consider When Choosing a Toolbox
- What tools am I storing?
- How often will I access it?
- What are my truck/trailer dimensions?
- Do I need side, underbody, or overhead mounting?
- Will the material handle my climate and conditions?
- Can my rig handle the weight?