RV Measuring Guide: How to Measure Any RV, Trailer or Camper for a Cover

Sizing your RV cover comes down to a single number: the length of the body itself, from one end to the other. Accessories never count: leave out the ladder, spare tire, bike rack, propane tanks, tongue and hitch. Be careful with the length printed in your owner's manual or brochure, because manufacturers typically quote it hitch included. Run a tape measure along the ground yourself. If the number lands between two cover sizes, order the bigger one.

How to Measure a Class A RV

Measure along the body at ground level, from the front bumper to the rear bumper. Do not include the ladder, spare tire, bike rack or any hitch-mounted accessory.

Class A RV Covers: 18 to 20 to 44 FT

How to Measure a Class B RV

Measure the full body from the front bumper to the rear bumper, including the rear-mounted spare tire if it stays on. Exclude any hitch or bike rack.

Class B RV Covers: 18 to 20 to 26 FT

How to Measure a Class C RV

Measure from the front bumper to the rear bumper, including the cab-over bunk. Do not include the ladder or anything mounted behind the rear bumper.

Class C RV Covers: 18 to 20 to 38 FT

How to Measure a Travel Trailer

Measure the box only: from the front wall of the trailer body to the rear wall or rear bumper. Never include the tongue, hitch, propane tanks or spare tire. The brochure length usually includes the hitch and is not the number to use.

Travel Trailer Covers: 14 to 16 to 42 FT

How to Measure a Travel Trailer Toy Hauler

Measure the body with the rear ramp door closed, from the front wall to the rear of the ramp. Exclude the tongue, hitch and propane tanks.

Travel Trailer Toy Hauler Covers: 14 to 16 to 42 FT

How to Measure a Fifth Wheel Trailer

Measure from the front of the raised gooseneck section to the rear bumper, following the body. Do not include the kingpin or the overhang above the truck bed beyond the body itself.

Fifth Wheel Trailer Covers: 20 to 23 to 45 FT

How to Measure a Fifth Wheel Toy Hauler

Measure from the front of the gooseneck to the rear of the closed ramp door. Do not include the kingpin.

Fifth Wheel Toy Hauler Covers: 20 to 23 to 45 FT

How to Measure a Folding Pop-Up Camper

Measure the box only, with the camper folded down: from the front wall to the rear wall. Exclude the tongue, hitch and propane tanks.

Folding Pop-Up Camper Covers: 6 to 8 to 20 FT

How to Measure a Truck Camper

Measure the camper body only, off the truck or as mounted: from the front of the cab-over bunk to the rear wall. Do not include the truck itself or the jacks.

Truck Camper Covers: 8 to 10 to 12 FT

How to Measure a Teardrop Trailer

Measure the body from the front wall to the rear wall, excluding the tongue and hitch. If your entry door is on the back, choose the rear-door version so the cover's access panel lines up.

Teardrop Trailer Covers: Up to 13'7" long to 17'7" long, door in back

Frequently Asked Questions

My measurement is right on the line between two sizes. Which do I pick?

Take the bigger one. Extra room is easy to snug up with the straps and buckles, but a cover that comes up short cannot wrap under the bumpers at all.

Do I include the air conditioner or roof accessories in the height?

No. Covers are sized by body length only. The pattern already allows for standard roof-mounted equipment.

Do I measure with the slide-outs open or closed?

Closed. Covers are made to fit the RV in its stored position with all slide-outs retracted.

What if my RV type is not listed?

Not sure which size to order? Let our team help you! Contact us or call us directly at 1-800-770-1838.