Consider three factors: cargo dimensions (add 10-20% for clearance), weight requirements (including cargo, fuel, and equipment), and future needs. Measure your largest anticipated load and choose a trailer with interior dimensions that accommodate it. Remember that GVWR (Gross Vehicle Weight Rating) includes the trailer's weight plus cargo.

GVWR is the maximum total weight your trailer can handle (trailer + cargo). Payload capacity is the maximum weight of cargo you can add. To calculate payload: GVWR minus empty trailer weight. Example: A 7,000 lb GVWR trailer weighing 2,000 lbs empty has a 5,000 lb payload capacity. Never exceed either rating.

Single axle (up to 3,500 lbs): Better maneuverability, lower cost. Tandem axle (3,500-10,000 lbs): Better stability, redundancy if one tire fails, smoother ride. Tri-axle (10,000+ lbs): Maximum stability for heavy loads, often required for certain weight classes. More axles distribute weight better but increase rolling resistance.

Check your vehicle's owner's manual for maximum towing capacity. Consider: 1) Tow rating, 2) Hitch class rating, 3) Payload capacity (including passengers and cargo in tow vehicle), 4) Brake controller requirements, and 5) Cooling system capacity. A good rule: Keep loaded trailer weight at or below 80% of your vehicle's maximum rating for safety margin.

Most states require brakes on trailers exceeding 3,000 lbs GVWR, but regulations vary. Some states require brakes on any trailer over 1,500 lbs. Federal regulations require brakes on all trailers over 3,000 lbs. We recommend brakes on any trailer over 1,500 lbs for safety. Electric brakes are most common for trailers under 12,000 lbs.

Distribute 60% of weight forward of the axle(s), 40% behind. This ensures proper tongue weight (10-15% of total trailer weight). Secure all cargo with appropriate tie-downs (straps, chains, or rope). Heavy items should be centered side-to-side and placed low. Never load above the trailer's sides unless specifically designed for it.

Proper tongue weight is 10-15% of total loaded trailer weight. Example: A 5,000 lb trailer should have 500-750 lbs on the tongue. Too little causes sway; too much strains the tow vehicle. Use a tongue weight scale or visit a CAT scale to measure. Adjust cargo placement to achieve proper weight distribution.

Service wheel bearings annually or every 12,000 miles, whichever comes first. More frequently if submerged in water or used in harsh conditions. Look for signs of wear: excessive play, grinding noises, or grease leakage. Always repack with high-temperature marine-grade grease and replace seals each service.

Maintain pressure specified on the tire sidewall, not the trailer placard. Check pressure when tires are cold (not driven for 3+ hours). Underinflated tires cause overheating and failure; overinflated reduces traction and causes uneven wear. Check pressure monthly and before every trip. Trailer tires typically require higher pressure than vehicle tires (often 50-80 PSI).

Trailer tires age out before they wear out. Replace them every 5-7 years regardless of tread depth, or immediately if you see cracks, bulges, or significant wear. UV exposure and infrequent use are harder on trailer tires than mileage. Check date codes on sidewalls (last 4 digits of DOT code: week/year).

Most states require title and registration for trailers over 1,500-3,000 lbs GVWR. Even small trailers often need registration. Requirements vary by state. You'll typically need: Bill of sale, proof of insurance, weight certificate, and completed application. Some states offer permanent registration for small utility trailers.

Most auto policies provide liability coverage for trailers while attached to your vehicle. For comprehensive coverage (theft, damage, vandalism), you need separate trailer insurance or a rider on your policy. Commercial trailers require commercial policies. Insure for replacement value, not purchase price.

For personal use: Standard driver's license covers trailers up to 10,000 lbs GVWR in most states. Commercial or RV combinations may require additional endorsements. Check state regulations - some have specific requirements for trailers over certain lengths or weights. CDL is typically required for commercial combinations over 26,000 lbs.

New: Full warranty, latest features, no hidden issues, higher cost. Used: Lower cost, depreciation already occurred, may need repairs, inspect thoroughly. For occasional use: consider quality used. For daily business use: new with warranty. Always get a professional inspection for used trailers over $2,000.

Yes, but carefully. Adding D-rings, shelving, or lighting is generally safe. Structural modifications (adding axles, extending length) may void warranties and affect safety ratings. Never modify brakes, suspension, or frame without professional guidance. Document all modifications for insurance purposes.

ST (Special Trailer) tires: Stiffer sidewalls for stability, higher pressure ratings, designed for trailer use only. LT (Light Truck) tires: Softer sidewalls, better for steering vehicles. Always use ST tires on trailers - they're engineered for the different forces trailers experience.

Clean thoroughly, lubricate moving parts, inflate tires to maximum pressure, store on blocks to relieve tire pressure, disconnect battery, use moisture absorbers inside, cover or store indoors. For enclosed trailers: remove all moisture-prone items, consider rodent deterrents. Apply fluid film to rust-prone areas.

Causes: Improper loading (too little tongue weight), high winds, uneven road surfaces, excessive speed. Prevention: Proper loading, use sway control devices, maintain appropriate speed (below 65 mph), ensure proper tire pressure. If sway occurs: Do NOT brake suddenly. Gradually reduce speed or accelerate slightly (if safe) to regain control.

Pressure-treated wood: Traditional, repairable, affordable. Steel: Most durable, heavy, can be slippery when wet. Aluminum: Lightweight, corrosion-resistant, premium price. Composite: Weather-resistant, durable, higher cost. Choose based on cargo type and budget.

Required on all trailers with brakes in most states. The breakaway system automatically applies trailer brakes if it becomes detached from the tow vehicle. It includes a battery, switch, and cable. Test monthly by pulling the pin while trailer is stopped (brakes should engage). Keep battery charged and replace every 2-3 years.

Wash regularly with mild soap and water. For steel trailers: Apply wax or protectant to prevent rust. For aluminum: Use aluminum-safe cleaners. Immediately remove road salt, bird droppings, or tree sap. Check for and touch up paint chips. Lubricate hinges and locks with dry lubricant (not oil-based).

Most states limit trailers to 55-65 mph on highways, regardless of posted limits. Some states have lower limits. Check your state's regulations. Even if legal, we recommend not exceeding 65 mph for safety. Higher speeds increase sway risk, tire heat buildup, and stopping distances.

Worth it: LED lights (brighter, longer-lasting), radial tires (better ride, longer life), Dexter axles (industry standard), torsion suspension (better ride), spare tire mount, upgraded coupler. Consider: ramp options, interior tie-downs, extra doors. Skip: Unnecessary cosmetic upgrades unless for specific business needs.

Level surface, blocked under frame (not axles), covered or indoors if possible, tires inflated to maximum pressure, brakes released (if storing long-term), battery disconnected if equipped, all doors and vents secured. Use wheel chocks and consider a hitch lock for security.

Check before every trip. Have someone confirm all functions: running lights, brake lights, turn signals, and hazard lights. Clean connections monthly with electrical contact cleaner. Carry spare fuses and bulbs. Consider upgrading to LED lights for reliability and longer life.

Weight carrying: Standard ball mount, for lighter loads (typically under 5,000 lbs). Weight distributing: Uses spring bars to distribute weight evenly across all axles, required for heavier loads to maintain vehicle control and proper headlight aim. Required when tongue weight exceeds vehicle hitch rating.

Required in many states if tires extend beyond fenders. Even if not required, they're recommended to protect following vehicles and your trailer from debris. Some states specify size and placement requirements. Check local regulations - fines can be issued for missing or inadequate mud flaps.

Utility trailers: 15-25 years. Enclosed cargo trailers: 20-30 years. Commercial trailers: 10-15 years with heavy use. Proper maintenance doubles lifespan. Steel trailers last longer than aluminum in structural terms but require more rust prevention. Resale value remains good for 10-15 years if maintained.

1) Check vehicle fuse. 2) Clean connections on both ends. 3) Test with known-good connector. 4) Check ground connection. 5) Test individual wires with multimeter. 6) Look for pinched or frayed wires. 7) Check bulbs (even if they look good). Most electrical issues are connection-related.

VIN is typically on the tongue, frame rail near coupler, or interior wall. It provides: Manufacturer, trailer type, model year, GVWR, and serial number. You'll need it for registration, insurance, and ordering parts. Record it and keep a copy separate from the trailer.