How to Measure Your RV for a Storage Cover

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• Class A RV
• Class B RV
• Class C RV
• Fifth Wheel Trailer
• Travel Trailer
• Truck Camper
• Folding Popup Camper
• Teardrop Camper

Why Measuring Matters

Whether your RV is brand new or new to you, keeping it protected is essential. One of the most effective ways to shield it from the elements is by using a high-quality RV storage cover. These covers help guard against dirt, bird droppings, tree sap, and UV damage—all of which can fade paint and deteriorate finishes over time.

RV covers are usually water-resistant and breathable, offering protection from rain, snow, and condensation while reducing the risk of mold or mildew. However, for a cover to perform its job well, it must fit properly. This is why taking accurate measurements is so important before you make a purchase.

The Risk of Relying on Manufacturer Specs

Your first instinct might be to rely on the dimensions listed in your RV’s manual—but these specs don’t always reflect added features like ladders, bumpers, or spare tires. That’s why it’s best to take the measurements yourself. Doing so will ensure a more precise fit and eliminate the need to exchange sizes later.

The Benefits of a Proper Fit

• Better Protection: A snug fit helps shield your RV from environmental damage more effectively.
• Longer Cover Life: Covers that are too small can tear; those too big can flap in the wind and wear down prematurely.
• Ease of Use: Correctly sized covers are easier to install, cinch, and secure.

Understanding Cover Design

Most RV storage covers are designed for full-body protection and use straps and cinch ropes for a secure fit. While length is the most important measurement, it’s still a good idea to record all three dimensions—length, height, and width—before choosing a cover.

How to Measure Your RV

Length

Measure from the frontmost point to the rearmost point of your RV, including ladders, bumpers, and spare tires. Do not include hitches or tongues.

Height

Measure from the top of the roofline down to the bottom edge of the RV's frame (not the ground). Exclude ground clearance and roof accessories such as A/C units or vents.

Width

Facing the front of the RV, measure the widest point side to side. Do not include mirrors or awnings.

Choosing the Right Size

RV covers are sold by length range (e.g., 28'1"–31'). If your RV falls at the upper end of a range, stick with that range. Covers are made with extra material to accommodate rooftop accessories and for easier fitting. Going a size up may result in a loose, billowy cover.

Example:

If your RV measures exactly 31', choose the 28'1"–31' cover. If it measures 31'1", then opt for the 31'1"–34' cover.

How to Measure Each Type of RV

Class A Motorhome

• Length: Measure from the front bumper to the rear (including bumpers, ladder, and spare tire).
• Height: Measure from the roof to the bottom frame. Exclude ground clearance and roof accessories.

Class B Camper Van

• Length: Same as above. Include all rear accessories.
• Height: Include any raised “bubble” roof sections but exclude roof-mounted accessories.

Class C Motorhome

• Length: Measure from bumper to bumper, including any rear attachments.
• Height: From roofline to frame, excluding clearance and rooftop accessories.

Fifth Wheel Trailer

• Length: Measure from the frontmost point of the nose to the rear bumper, including the spare tire if needed. Do not include the hitch or tongue.
• Height: Measure from the top of the roofline down to the bottom edge of the sidewall. Exclude ground clearance and any roof-mounted accessories.

Fifth Wheel Trailer

• Length: Measure from the frontmost point of the nose to the rear bumper, including the spare tire if needed. Do not include the hitch or tongue.
• Height: Measure from the top of the roofline down to the bottom edge of the sidewall. Exclude ground clearance and any roof-mounted accessories.

Truck Camper

• Length: Include bumpers and nose overhangs. Measure the full profile.
• Height: From roofline to the bottom of the unit. Exclude clearance and rooftop equipment.

If total length of you truck camper is under 216", you will need Truck Camper 8' to 10'
If total length of you truck camper is under 238", you will need Truck Camper 10' to 12'

Folding Popup Camper

• Length: Measure fully closed unit from front to back, excluding tongue or hitch.
• Height: From top of the unit to the base frame. If your height measurement is close to the top of the range and you have an A/C unit, consider sizing up.

Teardrop Camper

• Length: Measure from the front bumper to the back, including all fixed rear accessories, excluding tongue or hitch.
• Height: From roofline to base of the frame, excluding ground clearance and rooftop items.

Conclusion

Taking a few extra minutes to properly measure your RV can save you hours of hassle and maximize the lifespan of both your cover and your vehicle. Always go by the actual dimensions of your RV, not just what’s listed in the manual. With accurate measurements, you’ll ensure the best fit for your specific RV type and get the most out of your investment.

Frequently Asked Questions