Underbody Storage Series



Mounts above or below flatbeds, dump trucks and trailer bodies. Similar in design to our topsiders except they are made of an even heavier gauge .080 Aluminum Alloy Tread Plate. Fully welded seams and stout reinforcement throughout ensure that these units will stand up to the most demanding use. Mounts above or below flatbeds, dump beds, trailer bodies, and other applications. These units are widely used and are the standard of the industry!

  • One-Piece heavy duty 0.080" Aluminum Design helps prevent sagging, leakage and minimizes denting
  • Lid Opens 90° for easy loading and unloading of tools and equipment
  • Stainless Steel T-Handle Lock Brass Lock System provides rust-free product life, one-hand access and 2 latch points for strength and security
  • Stainless Steel Aircraft Cable Supportsallow lid to open 90ø and withstand up to 1,000 pound load when in the open position
  • Heavy-Duty MicroSeal? Stripping helps seal out moisture, dust and dirt




Monroe's offers you the most complete selection of UWS Tool Boxes available. UWS Tool Boxes are made in the U.S. and most models are available in either Brite Tread or Black Powdercoat. Whether you need a Crossover, UnderBody, Side Mount, Wheel Well, Top Side or 5th Wheel Tool Box, we've got you covered!! UWS also makes tool boxes for your ATV, Trailer Tongue or, for your Hunters out there, Dog Carrier boxes. UWS also produces a full line of Transfer Tanks and Utility Chests. No matter what type of tool box or utility box you need, Monroe's has it at the best price possible.


Monroe's is proud to be the only certified dealer of UWS Truck Accessories in West MIchigan. Our knowledgeable team will be glad to assist you in finding the perfect UWS Toolbox for your needs and your vehicle. Come into Monroe's for more information on UWS Tool Boxes, and to order yours today!

Monroe Truck And Auto Accessories (231)773-0005