Start With GVWR, Not Deck Size
Gross Vehicle Weight Rating (GVWR) is the maximum combined weight of the trailer plus everything loaded onto it, and it's the number that caps what you can haul. Subtract the trailer's own weight from its GVWR and you get your real payload capacity. Shopping by deck length alone is a common mistake, the axles and tires will limit you well below what the bed could physically hold, like hauling an ATV plus a load of firewood on a light-duty trailer rated for far less.
Single Axle vs Tandem Axle
Single-axle trailers (one axle, two tires) are lighter, cheaper, easier to maneuver in tight spots, and typically max out around 3,500 lbs GVWR, suited to lawn equipment, a single ATV, or a light load of landscaping debris. Tandem-axle trailers (two axles, four tires) spread the weight further, ride steadier at highway speed, and commonly range from 7,000 to 14,000+ lbs GVWR. Tandem axles also add a safety margin: if one tire blows, the trailer stays far more controllable than on a single-axle setup.
Size the Deck to What You Actually Haul
Common deck widths run 5, 6, 7, and 8.5 feet, with lengths from 8 to 20+ feet. For side-by-sides and UTVs, measure your machine's actual width and length and add at least a foot of clearance on each side for tie-downs. For general landscaping and property hauling, a 6x12 tandem covers most needs. Anyone moving skid steers or multiple ATVs should step up to a 7x16 or 8.5x20 deckover.
Ramp Gates, Tie-Downs, and Deck Material
A full-width rear ramp gate is required if you're loading anything on wheels, mowers, ATVs, UTVs; side-load gates work for landscaping trailers but won't let you drive equipment on and off. Wood decking is cheaper to patch when damaged (swap a plank instead of re-welding steel); an all-steel deck holds up better to sharp debris and heavy point loads. Look for at least 4 stake pockets or D-ring tie-downs per side, rated for the cargo weight you'll actually carry.
Towing Capacity and Brakes
Confirm your tow vehicle's rated towing capacity clears the trailer's GVWR with margin to spare, not just the trailer's empty weight. Most states require electric or surge brakes on at least one axle once combined trailer weight passes 3,000-4,000 lbs (the threshold varies by state), and brakes on both axles are strongly recommended above 7,000 lbs GVWR to keep stopping distances safe.
Frequently asked questions
What size utility trailer do I need to haul a UTV?
Most full-size UTVs need at least a 6.5x12 deck. Measure your specific machine's length and width and add roughly 12-18 inches of clearance in each dimension for straps and the ramp approach angle.
Does a utility trailer need brakes?
Most states require brakes once GVWR passes roughly 3,000-4,000 lbs, and brakes on both axles are recommended for tandem trailers over 7,000 lbs GVWR. Check your state's threshold before towing.
Should I get a single axle or tandem axle for a lawn tractor?
A single-axle trailer rated around 3,000-3,500 lbs GVWR is typically enough for one riding mower or zero-turn plus attachments. Step up to tandem if you're hauling several machines or a heavy load of debris at once.
How do I figure out my trailer's real payload capacity?
Subtract the trailer's empty (curb) weight, found on its VIN tag, from its GVWR. What's left is the maximum cargo weight you can legally and safely load.