For truck owners who need quick, tool-ready access without sacrificing bed space, side-mount truck boxes offer efficient storage and easy reach from the curb. This guide highlights five top options that balance durability, capacity, and accessibility. Best for contractors who frequently load tools from the truck side, campers needing quick gear access, and DIY enthusiasts seeking organized storage while keeping the bed free for cargo.
| Product | Best For | Key Benefit |
|---|---|---|
| Vigorighter 48 Inch Side Mount Truck Box (2 Pack) — 48″ x 13″ x 12.8″ | Large-tool sets, roadside kits | High capacity; sturdy aluminum construction |
| Buyers Products 72 x 13 x 16 Inch Topsider Box | Pro-grade storage, frequent access | Dual drop doors; weather-resistant locking |
| Vigorighter 36 Inch Side Mount Tool Box (2 Pack) — 36″ x 12″ x 12″ | Mid-size tool collections | Compact side-mount with protective finish |
| Weetron 48 inch Side Mount Tool Box — 48 x 12 x 12″ | Rust-prone environments; quick access | Lockable, corrosion-resistant aluminum |
| PRUNkuar 60 Inch Side Mount Truck Tool Box — 60″ x 8″ x 14″ | Long, slim storage; space efficiency | Heavy-duty textured aluminum; side access |
Vigorighter 48 Inch Side Mount Box (2 Pack)

Best for: Contractors and fleet use needing substantial side-access storage. This set uses a welded 0.058-inch aluminum tub for weatherproof durability. The 48″ length provides ample room for hand tools, cables, and small parts, while sitting lower in the bed to assist loading. Consider this if you want large side drawers with weather resistance and straightforward access from the curb.
Why chosen: The two-box pack maximizes shared storage across dual-rear trucks or a single extended toolbox setup. It minimizes bed clutter by dedicating side-access containers to frequent tools.
Caution: Ensure bed rail compatibility as mounting dimensions may require fitment checks against your truck model.
Buyers Products 72 x 13 x 16 Topsider

Best for: Pros needing heavy-duty, weather-resistant storage with easy, secure access. This topsider box uses a .100-inch-thick diamond-tread aluminum shell for durability without excessive weight. The two recessed drop doors and continuous hidden hinges enable smooth operation and robust protection in dirty work sites.
Why chosen: Dual-drop doors provide broad access across the cabinet, while die-cast locking T-handles keep tools secure in transit. This model emphasizes professional-grade construction and weather sealing, ideal for frequent travel and exposure to harsh elements.
Caution: Heavier overall weight may require upgraded mounting hardware or vehicle load calculations for some trucks.
Vigorighter 36 Inch Side Mount Box (2 Pack)

Best for: Small-to-mid-size tool collections or additional emergency gear. The compact 36″ length maintains bed capacity while offering side-access storage on a dual-pack setup.
Why chosen: Lightweight yet durable aluminum construction provides corrosion resistance and easy installation. The pack format helps balance space and quantity of tools carried.
Caution: There is less internal volume per unit compared with 48″ options; plan tool dimensions accordingly to avoid overpacking.
Weetron 48 Inch Side Mount Tool Box

Best for: Users prioritizing quick side access and a balanced mix of lock security and rust resistance. The box mounts on the bed rail, freeing the truck bed for other cargo while offering lockable storage.
Why chosen: Stainless steel latches and two keys per lock provide straightforward security. The aluminum body offers corrosion resistance and a lightweight profile for easier handling.
Caution: The lid relies on a weatherproof seal line; ensure proper sealing is maintained to prevent water ingress in heavy rain scenarios.
PRUNkuar 60 Inch Side Mount Box

Best for: Long, slender storage needs—great for tools like long-handled items, boards, or camping gear that benefit from side access. The 60″ length maximizes storage while preserving bed space.
Why chosen: Heavy-duty textured aluminum and a side-mount design optimize space efficiency. The 5-bar tread adds durability against weather and wear.
Caution: The slimmer width (8″) may limit wider tool kits; verify tool dimensions fit through the opening before purchase.
Buying Guide
What to consider when choosing a side-mount truck box
- Mounting style and compatibility: Confirm bed rail dimensions and mounting hardware compatibility with your truck model. Side-mount designs vary in how far they sit from the bed rail.
- Material and durability: Aluminum offers light weight and corrosion resistance; steel provides maximum durability but adds weight. Consider your climate and exposure to moisture.
- Storage capacity: Measure your typical tool set and gear. Longer boxes offer more length for long-handled items; deeper boxes provide more vertical space for smaller items.
- Security features: Look for weather seals, locking latches, and robust hinges. Die-cast locks and multiple keys increase security for tools in transit.
- Weather resistance: Weatherproof seals reduce water intrusion. If you operate in rain or snow, prioritize sealed lids and corrosion-resistant hardware.
- Accessibility: Side-mount access should allow you to retrieve commonly used tools without climbing into the bed. Double-door designs can provide wider access across the cabinet.
- Maintenance: Check for rust resistance, seal integrity, and the ease of cleaning the tub and hinges. Aluminum options typically require less maintenance than steel.
FAQ
- What is the main advantage of a side-mount toolbox?
It frees bed space and allows quick access from the truck side, improving workflow on jobsites and during roadside tasks.
- Are aluminum or steel side-mount boxes better?
Aluminum is lighter and corrosion-resistant, ideal for frequent use and weather exposure. Steel offers maximum durability but adds weight.
- How do I choose the right length for a side-mount box?
Match the box length to the typical length of your commonly carried tools or cargo. Longer boxes hold longer items, while shorter ones save bed space.
- Do side-mount boxes require special installation?
Most require mounting to the bed rails and may need standard hardware compatible with your truck model. Check weight ratings and clearance.
- What maintenance is needed for side-mount boxes?
Regularly inspect seals and latches, lubricate hinges if needed, and clean the exterior to prevent corrosion, especially in salty or humid environments.
- Can I use side-mount boxes for camping gear?
Yes. They provide weather-protected storage for cooking gear, spare parts, and camping equipment while keeping the bed open for other items.