Truck Tool Boxes

Shop truck tool boxes and pickup truck tool boxes from Upfit Supply — commercial-grade aluminum and steel storage for pickup trucks, service trucks, and flatbeds. We carry Weather Guard, UWS, CamLocker, and Brute — four of the most trusted names in truck tool boxes — with free shipping on every box and 1–2 business day fulfillment from our Michigan warehouse. Browse by box type below, shop by brand, or use the vehicle filter to confirm fitment for your specific truck.

Types of Truck Tool Boxes

The right truck tool box depends on how you use your bed, what you're storing, and how you need to access it. Here's a breakdown of every style we carry.

  • Crossover / Saddle Boxes — The most popular style of truck tool box. Mounts across the full width of the bed just behind the cab, resting on both bed rails. Provides the largest interior storage volume and the most secure lock position. Available in standard, low-profile, and angled-lid configurations. Best for contractors who need maximum tool storage without sacrificing side access to the bed.
  • Lo-Side / Side Mount Boxes — Mounts along one or both bed rails at a low profile, keeping the middle of the bed fully open for hauling materials, equipment, or long loads. Ideal when you need tool storage and bed space at the same time. Also called low-side boxes or rail boxes.
  • Top Mount Boxes — Similar to lo-side boxes but with a taller, higher-profile design that sits on top of the bed rail. Provides more interior depth for taller tools and equipment while still keeping the center of the bed accessible.
  • Underbody Boxes — Mount beneath the truck frame, service body, or flatbed — completely out of the bed. The go-to solution for service trucks and utility trucks where every inch of bed space is needed. Available in single- and double-door configurations.
  • Chest Boxes — Upright, chest-style storage that sits in the truck bed like a traditional toolbox chest. Ideal for deep tool organization with multiple tray configurations. Popular with mechanics and technicians who bring a full set of hand tools to job sites.
  • Wheel Well Boxes — Also called porkchop boxes. Fit into the space above the wheel well inside the bed, making use of otherwise wasted space. Often paired with a crossover box for a complete dual-storage setup.
  • Flatbed Boxes — Designed for trucks equipped with flatbed or platform bodies rather than a standard pickup bed. Typically mount to the flatbed frame in underbody or side-mount configurations.
  • Backpack Boxes — Large-capacity boxes that mount behind the cab on the front of the bed, maximizing storage volume without covering the rear of the bed.

Truck Tool Box Brands

Every brand we carry has a distinct position in the market. Here's how they compare so you can choose the right fit for your work and budget.

  • Weather Guard — American-made since 1968. The commercial fleet standard. Heavy-gauge steel construction with ARMOR TUF powder coat engineered to resist chipping, scratching, and corrosion. Dual-action rotary locking and a limited lifetime warranty. The right choice when long-term durability and brand reputation matter. Shop Weather Guard tool boxes →
  • UWS (United Welding Services) — Aluminum-focused with a patented ratcheting lid that creates a tight, rattle-free seal without slamming. Bright mill finish aluminum resists rust without paint. A popular choice for contractors who want lightweight aluminum at a competitive price point. Shop UWS tool boxes →
  • CamLocker — American-made premium aluminum with a tongue-and-groove lid seal for a weather-tight fit. Noticeably cleaner finish and tighter tolerances than most competitors. The right choice for buyers who want the best-looking, best-sealing aluminum box on the market. Shop CamLocker tool boxes →
  • Brute — Heavy-duty steel built for contractors who prioritize durability and value over weight. Straightforward, no-frills construction at a lower price point than Weather Guard, without sacrificing the core commercial-grade build quality that working tradespeople need. Shop Brute tool boxes →

Aluminum vs. Steel Truck Tool Boxes

Both materials are proven for commercial use. Here's how they compare on the factors that matter most.

  • Weight: Aluminum is 30–50% lighter than steel — easier to handle solo and puts less load on the bed rails. Steel is heavier but provides a more solid, secure feel.
  • Rust & Corrosion: Aluminum is naturally rust-resistant and requires no coating to protect against moisture. Steel requires a quality powder coat finish (like Weather Guard's ARMOR TUF) to resist rust — inspect annually and touch up any chips.
  • Cost: Steel is typically lower cost for equivalent storage capacity. Aluminum carries a higher upfront price but often holds its appearance longer with less maintenance.
  • Best for aluminum: Contractors who remove and reinstall the box frequently, work in wet or coastal climates, or want to minimize added weight on a half-ton truck.
  • Best for steel: Maximum security, fleet standardization, heavy commercial daily use, or when budget is a primary factor.

How to Choose the Right Truck Tool Box

  1. Decide where you need access from. If you always grab tools from behind the cab, a crossover box is ideal. If you need side access while keeping the bed open for materials, lo-side or top-mount boxes work better. If the bed needs to stay completely clear, go underbody.
  2. Measure your bed before buying. Bed length (5.5 ft, 6.5 ft, 8 ft) and cab style (regular, extended, crew) affect which boxes fit. Use the vehicle filter on this page to narrow to confirmed-fit options for your specific truck.
  3. Choose your material. Aluminum for light weight and rust resistance. Steel for maximum security and lower cost. See the comparison above.
  4. Choose your brand. Weather Guard or Brute for steel. UWS or CamLocker for aluminum. CamLocker if finish quality is a priority. Weather Guard if fleet standardization or lifetime warranty coverage matters.
  5. Confirm installation method. Most crossover boxes are no-drill — they clamp to the bed rail with J-bolts. Underbody and service body applications may require drilling or welding. Confirm before ordering.

Who Uses Truck Tool Boxes

  • Electricians — Store wire, connectors, meters, and hand tools in a crossover or lo-side box, keeping the bed free for conduit and wire spools.
  • Plumbers & HVAC Technicians — Underbody boxes keep tools out of sight and secure while the bed carries pipe, equipment, and materials.
  • General Contractors — Crossover boxes provide quick access to tools between job sites without unloading the full bed.
  • Service Technicians — Chest boxes and underbody boxes provide organized, deep storage for full tool sets on service trucks.
  • Fleet Managers — Standardize tool storage across multiple trucks with consistent box types and brands. Contact us for fleet pricing.

Related Truck Equipment

Truck Tool Box FAQs

What is the most popular type of truck tool box?

Crossover boxes (also called saddle boxes) are the most popular style of truck tool box. They mount across the full width of the bed just behind the cab, provide the largest interior storage volume, and work with most full-size and mid-size pickup trucks. Shop crossover truck tool boxes →

What is the best truck tool box brand?

The best brand depends on your priorities. Weather Guard is the commercial fleet standard — American-made since 1968, heavy-gauge steel, ARMOR TUF powder coat, and a lifetime warranty. UWS is a popular aluminum option with a patented ratcheting lid at a competitive price. CamLocker is a premium American-made aluminum box with a tongue-and-groove weather seal for the cleanest, tightest fit. Brute is a heavy-duty steel option for contractors who prioritize durability and value. Upfit Supply carries all four brands with free shipping on every box.

Do truck tool boxes fit all truck beds?

No — fitment depends on your truck's bed length, cab style (regular, extended, or crew cab), and bed rail profile. Some boxes are universal-fit within full-size or mid-size categories, while others are designed for specific truck models. Use the vehicle filter on this page to confirm fitment for your year, make, and model before ordering.

What is the difference between aluminum and steel truck tool boxes?

Aluminum truck tool boxes are 30–50% lighter than steel, naturally rust-resistant, and easier to handle solo — ideal for contractors who work in wet climates or frequently move their box between vehicles. Steel boxes are heavier but typically cost less for equivalent capacity. Weather Guard steel boxes feature ARMOR TUF powder coat engineered to resist chipping and corrosion under daily commercial use.

What is the difference between a crossover box and a lo-side box?

A crossover box spans the full width of the bed on top of both bed rails — maximum storage, but it covers the front of the bed. A lo-side box mounts along one or both bed rails at a low profile, keeping the center of the bed completely open for hauling long materials. If you regularly carry pipe, lumber, or ladders alongside tools, lo-side boxes let you do both. Shop lo-side tool boxes →

Do truck tool boxes require drilling to install?

Most crossover (saddle) boxes are no-drill installations — they clamp to the truck bed rail using J-bolts underneath without any drilling. Lo-side, underbody, and service body applications may require drilling or welding depending on the model. Always confirm the installation method in the product listing before purchasing.

What size truck tool box do I need?

For standard full-size trucks (F-150, Silverado, Ram 1500), a crossover box in the 70"–71" range is the most common fit. For crew cab trucks with 5.5 ft beds, a compact or mid-size box around 60"–63" typically works better. For HD trucks (F-250/350, Silverado 2500/3500) with 8 ft beds, a full-size or extra-wide box is appropriate. Always measure your bed width at the rail and confirm against the product's listed dimensions.

Can I put a truck tool box on a leased truck?

Yes — most crossover and lo-side truck tool boxes are no-drill, clamp-on installations that leave no permanent marks on the truck, making them fully removable at lease end. Underbody boxes that require drilling are generally not recommended for leased vehicles without first reviewing your lease agreement.