Enclosed vs Flatbed Trailer: Which Do You Need?

The core tradeoff is protection versus openness. An enclosed trailer wraps your load in walls, a roof, and lockable doors; a flatbed is an open deck you can load from any side. What you haul — and whether it needs to stay dry, secure, and out of the wind — usually decides it.

	Enclosed	Flatbed
Best for	Motorcycles & powersports, moving household goods, tools & equipment, mobile business/vending — anything that needs to stay dry and secure.	Oversized or awkward loads, lumber and building materials, hay, pallets, equipment that loads from any side — anything that won’t fit in a box.
What it hauls well	Valuables and weather-sensitive cargo; doubles as lockable storage or a workspace.	Long, wide, or top-heavy loads; crane/forklift-loaded freight; anything you strap down rather than box in.
Weather / dust protection	Full — walls and roof keep out rain, dust, and road debris.	None — loads are exposed and must be tarped if weather-sensitive.
Security	Lockable doors; contents hidden from view — good for tools, bikes, valuables.	Open and visible; relies on tie-downs, not locks.
Typical size range	5×8 and 6×12 (single axle) up to 7×16, 8.5×20, 8.5×24 (tandem).	Roughly 16–20 ft open decks; gooseneck options for heavy/long loads.
Towing / wind resistance	Taller, boxier profile → more wind drag and lower fuel economy; mind height/clearance.	Low profile → less wind resistance; generally tows easier than an enclosed of the same size.
Relative cost	Costs more than an open trailer of the same footprint — you’re paying for walls, roof, and doors.	Generally lower cost than an enclosed of the same size.
Maintenance	More surfaces to keep up — door seals, roof, interior — but cargo stays protected.	Simpler deck; the deck and tie-down points take weather and load wear directly.

Choose Enclosed if…

You haul valuable or weather-sensitive cargo
You need security for tools, bikes, or equipment
You want weather protection or a lockable mobile workspace
You move household goods or run a mobile business

Choose Flatbed if…

You haul oversized, long, or awkward loads that won’t fit in a box
You want to load from any side or from above (forklift/crane)
You prioritize lower cost and easier towing
Your loads are weatherproof, or you’ll tarp them

What about cost?

Enclosed trailers generally cost more than a flatbed of the same footprint — you’re paying for the walls, roof, doors, and the extra material and build an enclosure requires. A flatbed of similar size is usually cheaper up front and often cheaper to tow (less wind drag). But “cheaper trailer” isn’t the same as “cheaper for you”: how often you’ll use it, storage, and upkeep all move the math.

What owning really costs → · Should you buy or rent an enclosed? →

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