The three trailer types that cover the large majority of dry freight movement, with their real standard dimensions.
Great Dane, Wabash, Utility, Hyundai Translead, Vanguard
The most common trailer type on the road — an enclosed box for palletized general freight that doesn't need temperature control.
Standard length
48' or 53' (53' is most common today)
Width
102" (8.5')
Interior height
~110" (varies by spec)
Typical payload capacity
Up to ~45,000 lb
Because dry van is the default spec most shippers and brokers expect, it's also the most competitive (and often lowest-paying) equipment type — flatbed and reefer typically command a premium specifically because fewer carriers run them.
Great Dane, Wabash, Utility, Hyundai Translead
A dry van's enclosed structure plus a refrigeration unit and insulated walls, required for perishable freight (produce, meat, dairy, pharmaceuticals).
Standard length
48' or 53'
Width
102" (8.5')
Height
~13.5' overall
The reefer unit itself is a major maintenance line item most dry-van owner-operators don't have to budget for — fuel, PM intervals, and unit repair/replacement all add real cost on top of the trailer itself.
Fontaine, Doonan, Trail King, Great Dane
An open deck with no walls or roof, for oversized, irregularly shaped, or top-loaded freight — building materials, machinery, steel, and lumber.
Standard length
48'
Width
~102"
Deck height
60–62" (leaving 8'4"–8'6" of legal load height)
Flatbed freight almost always requires tarping and load securement (chains, straps, edge protectors) that a dry van or reefer never needs — factor that real labor and equipment cost into whether the flatbed rate premium is actually worth it for your operation.
53 feet is the modern standard for most over-the-road freight, though 48-foot trailers are still in service, especially in older fleets or specific regional/LTL applications.
Reefer trailers cost more to buy and maintain (the refrigeration unit itself is a major ongoing expense), and perishable freight has tighter delivery windows — both push rates higher than the more commoditized dry van market.
No CDL endorsement is required specifically for flatbed, but it does require learning load securement rules (chains, straps, edge protection) and tarping that dry van and reefer never involve — many owner-operators treat their first few flatbed loads as a real learning curve.
Specs reflect common current factory options and can change by model year or region — always confirm exact figures against the manufacturer's current build sheet before making a purchase or maintenance decision.