Lowboy Trailers For Sale

Lowboy trailers are built to move tall, heavy equipment that would sit too high on a standard flatbed or step deck. Also called lowboy trailers, low bed trailers, or lowbed equipment trailers, this category is common in construction, paving, oilfield, aggregate, and machinery transport. The main buying advantage is deck height. Many lowboys run with a loaded deck height around 18 to 24 inches, which helps keep excavators, dozers, loaders, crushers, and other over-height machines legal or easier to permit. Most are 102 inches wide, with deck lengths and concentrated load ratings varying by frame design, axle count, and neck style.

The first decision is usually detach style and capacity. Hydraulic detachable gooseneck models are popular for frequent loading because they speed up loading cycles and reduce driver effort. Mechanical detachable neck trailers can cost less and still handle demanding work, but they are slower to hook and unhook. Capacity is typically discussed by ton rating over a stated deck length, such as 35 ton, 40 ton, 55 ton, or higher, and that number matters more than overall trailer length alone. A 55 ton lowboy may be rated in a 12-foot or 13-foot concentrated area, so buyers should match the rating to the actual machine footprint, axle spacing, and point loads. Gooseneck ride height positions, kingpin settings, swing clearance, and loaded fifth wheel height also matter because they affect tractor compatibility and turning clearance.

Axle configuration and expandability have a direct impact on payload, permits, and future flexibility. Tandem and tri-axle lowboys are common, with air ride suspension frequently preferred for heavy equipment and rougher jobsite approaches. Many buyers look for lift axles, flip axle connections, or spreader bar compatibility so the trailer can be configured for heavier loads when needed. Tires are commonly 255/70R22.5 or 275/70R22.5 low-profile sizes, and wheel mix can be aluminum outer with steel inner to balance weight and durability. On the deck, practical features make a real difference: Apitong or nominal wood flooring, swing-out outriggers, bucket wells or boom wells, chain drops, D-rings, stake pockets, front approach ramps, and covered toolboxes. Crossmember spacing, side rail construction, and reinforced rear framing are worth close attention if the trailer will carry concentrated track machine loads or accept additional axle equipment later.

Condition and specification details are especially important in this class because heavy haul work exposes trailers to high stress. On used lowboy trailers, buyers should inspect deck wear, neck fit, suspension condition, brake percentage, tire remaining, frame repairs, and signs of beam fatigue around the loaded area and rear bridge. Check for legal capacity tags, detachable neck operation, ride height control function, and evidence of proper maintenance on air systems and lift axle components. On newer units, focus on how the trailer is equipped for the freight you actually move most often, not just the highest posted ton rating. A lowboy that matches your machine weights, deck length needs, securement practices, and permit strategy will usually outperform a heavier or more complex trailer that is poorly matched to the job.