Most truck tool boxes range from 60 to 73 inches wide, with depths of 12 to 24 inches, and your exact fit depends on your bed width, length, and rail height.
There’s no industry-standard truck tool box size chart that works for every pickup. A crossover box that fits a Ford F-150 won’t necessarily fit a Toyota Tacoma. The practical route is to measure your truck bed’s inside width between the wheel wells, the inside bed length, and the height of your bed rails — then match those numbers against the box style you want. Here’s how each style breaks down and what to measure before you buy.
Crossover Tool Box Sizes: The Most Common Fit
Crossover boxes — the ones that span the full width of the bed, usually sitting right behind the cab — are the most popular style, and they vary mostly in height and depth rather than width. Typical crossover boxes run 69″ to 72″ wide overall, with compact versions around 60″ to 65″ for mid-size trucks. A standard-profile example measures 70″ long by 20″ wide by 12.2″ high, while a full-size version from Home Depot’s Husky line comes in at 71.36″ long, 20.50″ wide, and 17.64″ high.
Low-profile crossover boxes run a bit shorter and lower, often 60″ to 72″ long, 11″ to 13″ high, and 18″ to 21″ deep. Tractor Supply sells a 64″ x 20″ low-profile crossover specifically for mid-size trucks. One important detail: the bottom tub is often shorter than the lid. Tractor Supply’s 70″ crossover has a 70″ lid but a 61″ bottom tub, so it can clear bed walls and wheel wells even when the overall length looks tight.
Side-Mount, Trailer Tongue, and Chest Sizes
Side-mount boxes attach to one side of the bed and run 36″ to 96″ long, about 12″ to 18″ high, and 12″ to 16″ deep. Some guidance lists them at 36″ to 88″ long with roughly 12″ of depth at the top front and 8″ at the bottom. Trailer tongue boxes, which mount on the tongue of a trailer, are typically 20″ to 24″ wide at the front, 36″ to 48″ wide at the back, 16″ to 24″ deep, and 12″ to 18″ high.
Chest-style and cab-over boxes come in a wider range since they’re sized for specific bed lengths and cab configurations. Commercial listings from McMaster-Carr include boxes like 28″ x 12″ x 12″, 48″ x 18″ x 24″, 59″ x 20″ x 18″, and 60″ x 18″ x 24″. These smaller chests work for jobsite storage rather than full bed-width coverage.
What To Measure Before Buying
The three measurements that decide everything are the inside bed length, the inside width between the wheel wells, and the rail height. For many short-bed trucks, expect about 12″ to 18″ of space from the cab to the wheel well and roughly 51″ between the wheel wells themselves. A crossover box for a Ram 1500 runs about 69″ long by 20″ wide, while slim-line options come in around 69″ long by 12.75″ wide.
Don’t confuse overall width with the bed-rail span or the bottom tub width. Many crossover boxes taper inward at the base, so the lid width is wider than the tub width. Check whether the box clears the wheel wells and that the lid can open fully without hitting the cab. If you want the strongest options already vetted for full-size pickups, our tested full-size truck tool box roundup lists the models we’d actually buy.
| Box Style | Typical Length | Typical Width / Depth |
|---|---|---|
| Full-size crossover | 69″–72″ | 20″–20.5″ wide, 12″–18″ high |
| Compact / mid-size crossover | 60″–65″ | 20″ wide, 11″–13″ high |
| Side-mount | 36″–96″ | 12″–16″ deep, 12″–18″ high |
| Trailer tongue | 36″–48″ back width | 20″–24″ front width, 16″–24″ deep |
| Chest / cab-over | 28″–60″ | 12″–20″ wide, 12″–24″ high |
Fit charts from sellers are guidance, not guarantees. Always verify clearances before drilling or mounting. These boxes come in aluminum or steel, weighing anywhere from about 15 lb to over 100 lb, so confirm your bed rails can handle the weight when loaded with tools. Look for gas springs, gasketed lids, keyed locks, or padlockable latches — they affect both weather resistance and how secure your tools stay.
FAQs
Will a crossover box fit any pickup truck?
No — crossover boxes are built for specific bed widths and lengths. Mid-size trucks like the Tacoma often need a compact version around 60″ to 64″ wide, while full-size trucks typically take the 69″ to 72″ versions. Always measure the inside width between the wheel wells first.
Can the same tool box go on a long bed and a short bed?
Usually not. Boxes designed for long beds won’t necessarily clear the wheel wells on a short bed, and the cab-to-wheel-well distance differs. Some crossover boxes taper inward at the base so the tub fits where the lid won’t, but you still need to match the intended bed length.
Which material lasts longer: aluminum or steel?
Aluminum resists rust and weighs less, while steel is stronger but heavier and prone to corrosion without a quality finish. Weights in commercial listings range from about 15 lb to 117 lb, so heavier steel boxes need bed rails that can support the load.
References & Sources
- Tractor Supply. “TrailFX Crossover Toolbox Specifications.” Lists crossover and low-profile box dimensions including 70″ x 20″ and 64″ x 20″ models.