Get a tonneau cover that fits with your toolbox in place. The Extang Toolbox Tonneau Cover is custom-designed with a heavy-duty leather grain black vinyl tarp to cover, store and protect your valuables. Fits 18” to 21” deep toolboxes. 10-year warranty on tarp; Lifetime Warranty on frame.
Don’t let your truck toolbox stop you from using a tonneau cover. The Access Toolbox Edition Tonneau Cover is custom-designed to fit your truck even with a 20”-21” over-the-rail toolbox. Enjoy better gas mileage while securing your gear. Lifetime Warranty.