Used Cargo Trailer Inspection: The 15-Minute Checklist

Used cargo trailers are where the deals live — and where the money pits hide. This is the 15-minute inspection we’d run on any used box before money moves, and it works whether you buy from us or off Marketplace.

The walk-around (5 minutes)

• Tires: read the DOT date code — trailer tires age out (5–6 years) long before the tread wears. Cracked sidewalls = immediate replacement money.
• Frame & tongue: sight down the rails for kinks or fresh paint over welds; surface rust is fine, scaling rust is not.
• Coupler & chains: latch action, ball wear, chain hooks intact.
• Lights: plug in and run every function — corroded connectors tell on stored-outside trailers.

The box (5 minutes)

• Roof seams from inside on a bright day: pinholes of light = leaks.
• Floor: bounce-test corners and around the door; soft plywood means water got in.
• Doors: ramp springs lift smoothly, barn doors seal tight, hinges dry.

Underneath (5 minutes)

• Bearings: jack a wheel, spin and rock — growl or wobble = service due.
• Brakes: tandem axles should have electric brakes; verify with a controller.
• Suspension: broken leaf springs and shackle wear hide up there.

Price the fixes, then the trailer

Tires, bearings and a floor sheet add up fast — deduct them from the asking price or buy inspected. Every used trailer we list is inspected before dispatch with condition stated up front; browse enclosed cargo trailers or read the full buying checklist.