Merritt heavy duty underbody aluminum double door truck toolboxes are designed for service body, trailer and flatbed trucks.

The truck storage boxes include automotive grade seals and an extruded door frame to provide a weather resistant seal. The design includes a lap joint weld in the corner to provide superior strength and longer life.

The storage boxes are available in your choice of diamond plate or bright aluminum. 

Merritt Underbody Truck Box Features:

• Constructed of light weight, heavy duty aluminum.
• Polished stainless steel T-handle latches with locks and 2 keys.
  
• Doors available in bright or diamond plate aluminum.
• Stainless steel piano hinge for added durability.
• Optional mounting kit, lanyard and shelf options available as an add-on.
• Available in 18 inch and 24 inch heights.
• Custom dimensions available.
  

Merritt Underbody Cam Lock Sizes & Dimensions:

Diamond Plate Aluminum

• 36"L x 18"W x 18"H: 49 pounds
• 48"L x 18"W x 18"H: 61 pounds
• 60"L x 18"W x 18"H: 70 pounds
• 36"L x 24"W x 24"H: 61 pounds
• 48"L x 24"W x 24"H: 79 pounds
• 60"L x 24"W x 24"H: 107 pounds
• 48"L x 24"W x 18"H: 67 pounds
• 60"L x 24"W x 18"H: 88 pounds

Bright Aluminum

• 36"L x 18"W x 18"H: 49 pounds
• 48"L x 18"W x 18"H: 61 pounds
• 60"L x 18"W x 18"H: 70 pounds
• 36"L x 24"W x 24"H: 61 pounds
• 48"L x 24"W x 24"H: 79 pounds
• 60"L x 24"W x 24"H: 107 pounds
• 48"L x 24"W x 18"H: 67 pounds
• 60"L x 24"W x 18"H: 88 pounds

Other Tool Box Options:

• For more options see other Merritt Truck Boxes or other underbody tool box options.

Estimated Product Handling: 2 to 3 days

Tank Retailer offers a 30 day return policy for all products. Please see our Return & Refund Policy for more information.

Warranty Policy – Light Truck Product 

• All Light Truck products come with a limited lifetime warranty.  
• Coverage: Merritt guarantees that Light Truck Products will be free of defects in material and workmanship for the life of the product. If covered products fail due to a manufacturing defect, Merritt will repair, replace, or issue credit for the original purchase price at our discretion. 
• Conditions: Only original, unaltered, and unmodified items are covered. The product must be purchased from an authorized dealer and registered for warranty at the time of purchase. 

Warranty Policy – Class 8 Heavy Duty Product 

• Merritt Aluminum Products Company products (excluding Fenders) are warranted to be free from defects in material and workmanship to the original purchaser for 1-year from the date of purchase. 
• Exclusions: This warranty does not cover accessories and component parts manufactured or supplied by others, damage due to accident, abuse, misuse, corrosive environments, improper installation, or mishandling during shipment. The warranty is void if Merritt installation instructions are not followed or Merritt mounting kits are not used. Powder Coat on Class 8 Heavy Duty Products does not qualify for warranty. Remedies: The warranty is limited to the repair or replacement of the product at Merritt’s discretion. Merritt assumes no responsibility for installation or removal costs. 

Exclusions: 

• Merritt is not responsible for direct, incidental, or consequential damages, including damage from scratches, normal wear and tear, or natural breakdown. 
• Powder Coat finish is covered for one year on Light Truck Products only. 
• Products identified as “Scratch and Dent” are excluded from cosmetic claims. 
• No individual is authorized to make exceptions or warranty resolutions on behalf of Merritt. 
• Warranty claims should be promptly addressed to prevent escalation.