The UWS 38" Utility Chest Box with Drawers is a bright aluminum diamond plate chest box built for the bed of a working truck, and at 38" long, 23" wide and 20" tall it gives you 10.1ft³ of locked, sealed storage without touching your bed rails. It is a chest rather than a crossover box, so it sits on the bed floor and every inch of that volume is usable depth: long tools stand up in it, and nothing has to be worked around the rails. The tub is 0.058" aluminum diamond plate welded into a single piece, and the lid uses UWS's patented RigidCore construction, a pair of aluminum plates completely filled with a hardening foam so the lid stays flat instead of bowing when it is leaned on. A MicroSeal gasket runs the full lid seam to keep rain, road spray and dust out, and a recessed key-operated stainless steel paddle handle keeps it locked. This version carries two commercial-grade drawer banks with five drawers each, which is what turns a deep chest into somewhere you can actually find a socket. It weighs 85.4 lb empty and is designed, fabricated and welded by UWS in Florida.
What's Included:
One UWS 38" Utility Chest Box with Drawers, Bright Aluminum
Keys for the locking handle
MicroSeal gasket, factory-fitted around the lid seam
Folding carrying handles on both ends
Two drawer banks, five drawers each, factory-fitted
UWS limited lifetime warranty
Features
10.1ft³ of Locked, Sealed Storage The TBC-38-DS measures 38" long by 23" wide by 20" tall overall, with a 37" by 22" tub inside, and UWS rates it at 10.1ft³. Because it is a chest rather than a crossover box, all of that volume is usable depth instead of being split around the bed rails.
Ten Drawers in Two Commercial-Grade Banks Two integrated drawer units sit inside the tub, five drawers in each, for ten in total. UWS describes them as commercial-grade, precision-injected drawers, and they turn what would otherwise be one deep box into somewhere you can actually find a socket. This is why the TBC-38-DS weighs 85.4 lb against about 40 lb for a plain chest of the same size.
Patented RigidCore Foam-Filled Lid The lid is not a hollow shell. UWS fills it with a hardening, expanding foam pressed between two aluminum plates, and the foam sets into a solid structure that carries load across the whole panel. In practice that means the lid does not bow when someone stands on it, and it does not warp out of shape over a few summers and start binding on the gasket. RigidCore is patented and it is the single biggest difference between this box and a cheap aluminum one.
MicroSeal Gasket Around the Full Lid Seam A MicroSeal gasket runs the entire seam where the lid meets the tub, which is what keeps rain, road spray, dust, grit and insects out of the box. It is the difference between finding your tools dry and finding them under a film of red dust after a week on a job site.
Key-Operated Stainless Steel Paddle Handle A single stainless steel paddle handle sits flush in a recessed pocket so it cannot be levered, and it is key-operated. Stainless was chosen for the handle because it is the part that gets touched with wet, salty, dirty hands every day.
Folding Carrying Handles on Both Ends Zinc-plated folding handles are fitted on each end, so two people can lift the box in and out of the bed. They fold flat against the tub when they are not being used.
Welded One-Piece Aluminum Tub The tub is 0.058" aluminum diamond plate welded into a single piece rather than riveted or folded, so there are no seams to work loose and no fasteners to shear. Aluminum also keeps the box light, at 85.4 lb, and it does not rust when the finish gets scratched.
✓ Yes, fits between the wheel wells as well as forward of them. Measure your own bed; mid-size beds run roughly 44" between the wells and about 56" at the bulkhead.
✓ Yes, fits between the wheel wells as well as forward of them. Full-size beds run roughly 49" to 51" between the wells and about 62" to 66" at the bulkhead.
3/4-ton and 1-ton pickups (F-250/350, Silverado 2500/3500, Ram 2500/3500)
✓ Yes, fits between the wheel wells as well as forward of them. The widest beds in the range, so a long chest has the best chance here.
Flatbeds, service bodies, trailers, shop and garage use
✓ Yes. This is a free-standing chest, so it needs a flat floor and nothing else.
Under a tonneau cover
● Only if your cover clears 20". This is a standard-profile chest, not a low-profile under-tonneau box; UWS builds the SLC-48 for that job.
Fit guidance: This is a universal-fit chest box, not a vehicle-specific kit, so there is no year, make and model list to check. What matters is one measurement: the 38" overall length of the box against the usable width of your bed. A chest sits across the bed with its length running from rail to rail, normally pushed forward against the bulkhead where the bed is at its widest. Beds are narrower between the wheel wells than they are at the bulkhead, so measure both. Also check that the 20" height still lets your rear window and any bed cover work, and remember that a bed liner takes an inch or so off every internal measurement. The box is free-standing; UWS supplies no bed-specific mounting kit.
Specifications
UWS Part Number: TBC-38-DS
Product Type: Aluminum chest tool box
Material: Aluminum diamond plate, welded single-piece tub
Warranty: Limited lifetime, with one year on the finish and one year on the parts
Country of Origin: USA
Installation
Type: Free-standing in the truck bed, on a flatbed or in the shop; no vehicle-specific mounting kit required · Time: About 10 minutes · Tools: A tape measure, and a second person for the lift at 85.4 lb · Difficulty: Easy, no drilling required
A chest box does not bolt to the bed rails; it sits on the bed floor, normally pushed forward against the bulkhead where the bed is widest. Measure your bed before ordering: this box is 38" long, and beds are narrower between the wheel wells than at the bulkhead. Once it is in, secure it. An unsecured chest will slide forward under heavy braking, so run straps to the bed's tie-down points or bolt it down. If you are running a bed liner, remember it takes an inch or so off every internal measurement.
Warranty, Shipping & Returns
Warranty. UWS limited lifetime warranty on the box, with one year on the finish and one year on the parts. The warranty covers defects in materials and workmanship; it does not cover damage from overloading, misuse, accident or improper installation, and it does not cover normal wear on the finish.
Free shipping. This item ships free to the lower 48 states. Because it is an oversized item, it ships by freight and typically arrives in 3 to 7 business days.
Inspect on delivery. Please inspect the packaging before signing. If you see any damage, note it on the delivery receipt and contact us right away, and we will make it right.
About UWS
UWS is short for United Welding Services, and the name is the point: every UWS box starts as flat aluminum sheet and is welded into a single-piece tub rather than riveted or folded together. The company builds at its own plant in Perry, Florida, and it has been supplying the truck accessory trade long enough that the diamond plate box with the blue UWS badge is a familiar sight on job sites. UWS is part of the CURT Group, which in turn belongs to Lippert, so behind a fairly specialized Florida welding shop sits a full national parts and warranty network.
Two pieces of engineering separate a UWS box from a generic aluminum one. The first is the patented RigidCore lid: instead of a hollow shell, the lid is a pair of aluminum plates completely filled with a hardening, expanding foam, which sets into a solid structure and stops the lid bending, warping or binding after a few years of being leaned on. The second is the MicroSeal gasket, which lines the entire seam where the lid meets the tub and keeps water, dust, grit and insects out of the box rather than merely slowing them down. Both are backed by a limited lifetime warranty on the box, with one year on the finish and one year on the parts.
Prestige Truck is an authorized UWS dealer. Every box we ship is new, in the original UWS carton, built in the USA, and covered by the full UWS factory warranty.
Compare The Range
How this compares to similar models
The closest alternatives side by side, so you do not have to keep tabs open.
Model
This OneUWS 38" Utility Chest Box with 10 Drawers, Bright Aluminum, 10.1ft³ (TBC-38-DS)
Measure before you order. The box is 38" long and it sits across the bed, so what matters is your bed's usable width. Full-size beds are roughly 49" to 51" between the wheel wells and about 62" to 66" at the bulkhead; mid-size beds are roughly 44" and 56". At 38" this one fits almost any bed, wells included. A bed liner takes another inch or so off.
How much does it actually hold?
UWS rates it at 10.1ft³, and the tub measures 37" by 22". That figure comes from UWS's own dimension drawing for this part number, and we have checked it against the spec table on the same page.
Does it lock, and how many handles does it have?
Yes. It has a single key-operated stainless steel paddle handle, recessed into the box so it cannot easily be levered. Keys are supplied.
What is RigidCore, and does it matter?
RigidCore is UWS's patented lid construction: two aluminum plates with a hardening, expanding foam filling the space between them. It matters because an unsupported aluminum lid this size will bow when it is leaned on and eventually warp enough to bind on the gasket. A RigidCore lid stays flat, which is also what keeps the MicroSeal gasket sealing years later.
Is it weatherproof?
It is well sealed rather than submersible. A MicroSeal gasket runs the entire seam where the lid meets the tub and keeps out rain, road spray, dust and insects, which is what a bed box actually faces. It is not rated as a waterproof case, so treat pressure washing straight at the seam and standing water inside the bed as things to avoid.
How does it ship, and what does it weigh?
It ships by freight (LTL) at a shipping weight of 94 lb, so expect a delivery appointment and a truck rather than a courier. The box itself weighs 85.4 lb, which is a two-person lift into the bed.
Mark K.
Look is great. 100 lbs
Look is great. 100 lbs lighter than my 2nd pick. Lid lock and opening are smooth. Only minor knock I give is the the tie down hooks are hard to install - thinking I should have done them before installing.
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The toolbox is nice. I
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UWS 38" Utility Chest Box with 10 Drawers, Bright Aluminum, 10.1ft³ (TBC-38-DS)
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