RV Cover Buying Guide: Sizing for Class A, B, and C
An RV cover that's too short or too low is not just inconvenient — it can damage your rig when you try to pull in. Getting the dimensions right before you order is critical. This guide walks through the standard sizing for every class of motorhome and travel trailer, plus the Florida-specific considerations that affect your install.
Class A Motorhomes
Class A motorhomes are the largest — the diesel pushers and gas-powered coaches that look like commercial buses. They're also the most variable in size.
Typical dimensions: - Length: 25'–45' (most are 32'–40') - Height: 11'6"–13'6" at the air conditioner unit - Width: 8'–8'6" with slides retracted
Recommended RV cover sizing: - Length: measure your rig's total length including tow hitch or rear bike rack, then add 6'–8' for approach and walk-around room. A 40' coach needs at least a 46'–48' cover, and 50' is more comfortable. - Width: a 12' wide cover gives minimal clearance for a Class A; 14' is much better - Leg height: 13' leg height gives approximately 12' of clear height — tight for many Class A units with roof-mounted AC. 14' legs (13' clear) is recommended for most Class A coaches. Measure your specific rig at its highest point.
Common mistake: ordering a 12' leg height cover for a Class A that's 12'6" tall. Always measure your RV at the tallest point (usually the AC unit) and add at least 18".
Class B Motorhomes (Campervans)
Class B motorhomes are built on van chassis — they look like large cargo vans with beds and kitchens installed. They're the most compact motorhome class.
Typical dimensions: - Length: 17'–24' - Height: 7'–9' depending on whether they have a pop-top or fixed high-roof - Width: 6'6"–7'6"
Recommended RV cover sizing: - Length: 24'–30' cover for most Class B units - Width: 12' is adequate; 14' gives better side clearance - Leg height: 10' legs are sufficient for most Class B units. High-roof variants may need 11'–12' legs.
Class B owners often pair their RV cover with one or two adjacent carport bays for a secondary vehicle — a common combo is a 14'×30' RV cover with a 12'×20' carport bay as an add-on.
Class C Motorhomes
Class C motorhomes are built on a truck or van chassis with a distinctive cab-over bed section that extends over the cab. They're mid-range in size between Class A and Class B.
Typical dimensions: - Length: 20'–33' (most are 22'–28') - Height: 10'–11'6" including the cab-over section - Width: 7'6"–8'
Recommended RV cover sizing: - Length: 30'–40' for most Class C units with room to walk around - Width: 12'–14' - Leg height: 12' legs (11' clear height) is sufficient for most Class C units. Units with AC on the cab-over section may be taller — measure before ordering.
For Class C owners, the 12'×30' and 14'×30' covers are the most popular configurations.
Travel Trailers and Fifth Wheels
Travel trailers and fifth wheels are towed rather than self-propelled. Sizing considerations differ slightly:
Travel trailers (bumper pull): - Length: typically 12'–35' - Height: 9'–12' depending on model - When measuring length, include the trailer tongue (the front hitch attachment) — trailers are almost always longer than their stated length when the tongue is included
Fifth wheels: - Length: 22'–42' - Height: 12'–14' — fifth wheels often have a raised front section over the truck bed that makes them taller than they appear - Note: fifth wheels need extra vertical clearance at the front of the cover because the raised section sits toward the front of the trailer
Recommended approach: measure your specific trailer at its tallest point (often the rooftop AC or the front king-pin section on a 5th wheel), and add 18"–24" for clearance. Then measure the total length with tongue or hitch fully extended and add 4'–6'.
Florida-Specific Considerations for RV Covers
Sun protection: Florida's UV index is among the highest in the country. An RV stored under a cover with a 29-gauge vertical roof panel will have significantly less UV damage to the roof membrane, sealants, and exterior finish compared to uncovered storage. This translates directly to fewer roof repairs over time.
Hurricane anchoring: for any RV cover over 12' tall, make sure your installation uses proper concrete footings — not surface-level anchors or auger-style earth anchors. In hurricane-force winds, an improperly anchored cover can become a projectile. We always use code-compliant concrete anchors set into poured footings for RV covers.
HOA restrictions: many Florida HOAs restrict the visibility of RVs and allow them only if they're under a covered enclosure. Check your HOA docs before ordering — some HOAs require the cover to have walls on at least two sides.
Bring your RV's make, model, and year to our team — call (863) 296-3400 — and we'll pull the specs and size the right cover for you in minutes.
The most important thing to get right is height — it's the dimension that most often catches customers off guard. Measure your rig at its tallest point, add 18"–24", and that's your minimum leg height. Everything else is just making sure you have enough length and width to pull in and walk around comfortably.
Ready to Get a Quote?
Talk to our team or start a quote online — we build across Florida every week.