Trailer Side Options: Rails, Mesh, and Tread-Plate Walls

Side walls are where a utility trailer becomes YOUR utility trailer. The range runs from open rails (nothing to catch the wind, nothing to contain a load) to 24-inch solid tread-plate walls (a rolling bin). Here is what each choice actually does.

Open rails

The standard configuration: perimeter top rail, open sides. Lightest, cheapest, and the right answer when everything you haul is strapped machinery. Loose material — mulch, brush, debris — is not this trailer’s job.

Mesh sides (13 in / 21 in)

Aluminum mesh panels between the deck and rail. Mesh contains general cargo and brush while letting wind through — meaningfully less sway at highway speed than solid walls of the same height, and lighter. What mesh does not contain: fines. Sand, gravel, and soil sift through.

Tread-plate walls (13 in / 21 in / 24 in)

Solid aluminum tread-plate walls contain everything — soil, gravel, snow, loose tools. The trade-offs scale with height: solid walls add more weight than mesh (which comes straight out of payload), and they catch crosswind. The 24-inch wall turns a 5x8 into a serious yard-work machine; on longer tandems it is a materials hauler.