Tough, practical hinges for cargo ramps, side doors, and utility tailgates let you pick weld-on or bolt-on installs that suit your build. Greaseable designs keep the swing smooth, and some styles let you lift a tailgate off when you need to. Choose stainless steel if you want hardware that will not rust, or go with continuous piano hinges when you need full-length support, and match hole spacing and pin style to your trailer.
Some hinges don't list a weight rating, and capacity depends on installation. The weld quality, the number of hinges used, and the strength of the mounting surface make a big difference. For heavy gates or ramps, spread the load with multiple hinges and ensure solid attachment points to help reduce stress on each hinge.
Lubricate the pin regularly. If there's a grease zerk, use a grease gun; if the pin is non-removable, apply oil by hand or use a straw nozzle to reach the pin. Wipe away grit before greasing to reduce wear. If the hinge starts to bind, recheck alignment and fastener torque before adding more lube.
Start by measuring what you have now. Check overall strap length and width, bracket height, mounting hole spacing center to center, and the hinge pin or barrel diameter. Small differences can cause alignment issues, so verify before drilling. If you're replacing a continuous hinge, confirm the width is measured unfolded.
Either can work; pick the method that fits your frame and tools. Welding provides lots of surface to secure a heavy-duty hinge. Bolting or lagging into solid structure works well on plywood ramps and tailgates—pre-drill and use fasteners at consistent intervals. If you didn't measure the old hinge layout, expect to drill new holes for a clean fit.
Stainless steel handles wet and coastal environments well and helps prevent rusted pins. If using aluminum, check whether the pin is stainless steel. Look at bushing material too; brass resists rust better than plain metal bushings. Greaseable designs can help reduce wear—confirm if there's a zerk or plan to lube the pin manually.
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