7×14 Dump Trailer Plans, 14K LB Capacity

Build your own heavy-duty 7x14 dump trailer with the Johnson Trailer Parts DT714-14J blueprints. Designed for a 14,000 lb capacity tandem axle hydraulic dump trailer, these plans include step-by-step instructions, steel material lists, and fabrication guidance for the trailer frame and dump box. Engineered by Synthesis Engineering, these plans ensure a sturdy, reliable build for hauling dirt, gravel, equipment, and construction materials.

Each plan set includes 47 large-format drawings (11” x 17”) and 22 pages of instructions shipped flat for easy on-bench reference. Features optional add-ons like ramps, tie-down anchors, and tarp bar placement to customize your trailer. Perfect for DIY enthusiasts or professional fabricators looking for a high-quality, engineered solution.