RV dimensions vary widely by type: length ranges from under 12 feet for pop-up campers to over 45 feet for Class A motorhomes, width runs from 6 to 8.5 feet, and height spans 9 to 13.5 feet before rooftop accessories.
This guide covers all three measurements across every major RV class, so you can match a specific rig against your driveway, garage, tow vehicle, or campsite before you buy. Jump to the reference table below for the full breakdown by type.
RV Dimensions at a Glance: Reference Table by RV Type
Recreational vehicle (RV) dimensions vary more than most first-time buyers expect. Lengths run from under 10 feet for teardrop trailers to over 45 feet for Class A motorhomes. Widths span 6 to 8.5 feet, and heights range from under 9 feet to over 13 feet before you account for rooftop accessories. Here’s the complete picture by RV type.
| RV Type | Typical Length | Exterior Width | Roof Height (excl. rooftop AC) |
| Class A Motorhome | 26 to 45 ft | Up to 102 in (8.5 ft) | 12 to 13.5 ft |
| Class B Camper Van | 17 to 24 ft | 6.5 to 7.5 ft | 7.5 to 9 ft |
| Class C Motorhome | 21 to 35 ft | Up to 102 in (8.5 ft) | 10 to 12 ft |
| Travel Trailer | 10 to 35 ft (body) | 7.5 to 8.5 ft | 9 to 11.5 ft |
| Fifth-Wheel Trailer | 22 to 40 ft (body) | Up to 102 in (8.5 ft) | 12 to 13.5 ft |
| Pop-Up Camper | 8 to 16 ft (collapsed) | 7 to 8 ft | Under 5 ft (collapsed) |
| Teardrop Trailer | 8 to 14 ft | 6 to 7 ft | 5 to 7 ft |
Note: Height figures above reflect manufacturer-listed roof height to the highest fixed structural point. Rooftop air conditioning units, antennas, and vents typically add 8 to 12 inches. Always use the adjusted figure when planning bridge clearance or storage entry.
How to Read This Table
Length figures represent overall length from hitch to bumper for towable RVs, or front cap to rear bumper for motorhomes. Exterior width is the widest point of the body with slide-out rooms fully retracted. Height is measured from the ground to the highest fixed structural point, not including optional accessories or add-on equipment.
What the Three Dimensions Actually Mean for Your RV
Knowing the numbers matters less than knowing what to do with them. Each dimension affects a different part of owning and using an RV, and ignoring any one of them creates a real problem.
Length and Campsite Compatibility
Travel trailer length is the dimension most likely to get you turned away at a campground gate. Most national park campgrounds cap site length around 27 feet on average, based on industry data compiled across individual park rules, which excludes the tongue on longer trailers. Since NPS doesn’t publish one nationwide standard, always check the specific park’s campground page before booking.
Some private campgrounds accommodate rigs up to 45 feet, but loop road turning radius and site pad length are the real limiting factors. California state parks publish a specific length limit chart by park, with many sites capped between 24 and 35 feet.
Width and Road Legality
The maximum legal trailer width on U.S. interstate highways is 102 inches (8 feet 6 inches), established under 23 CFR Part 658 and administered by the Federal Highway Administration (FHWA). That is the interstate standard.
State highway regulations on secondary roads can be stricter, so if your towable RV is near the 102-inch maximum, check each state along your route before departure. Trailers wider than 96 inches may also require extended tow mirrors in some states to maintain adequate rearward sightlines.
Height and Clearance Planning
Most U.S. overpasses meet a 14-foot minimum clearance per FHWA highway design standards. Older roads, urban structures, and railroad underpasses can fall below that threshold. For a deeper look at how tall an RV is and what clearance you actually need, add 8 to 12 inches to your manufacturer’s listed height before planning any route. That gap accounts for rooftop AC units, which manufacturers consistently exclude from their spec sheets.
RV Dimensions by Class: Exact Ranges for Every Type
Once you know your RV class, you can cross-reference these ranges against your campsite reservation, your tow vehicle’s ratings, and your storage facility’s specs. Each class has a distinct dimensional profile with practical trade-offs worth knowing before you buy.
Class A Motorhome
Class A motorhomes run 26 to 45 feet in overall length. Gas-powered models typically fall between 26 and 35 feet, while diesel pushers trend toward the upper range. Exterior width reaches up to 102 inches, and roof height typically lands between 12 and 13.5 feet, not including rooftop equipment. At lengths over 40 feet, many campground loop roads become difficult to navigate without pull-through sites.
Class B Camper Van
Class B camper vans measure 17 to 24 feet in length, 6.5 to 7.5 feet wide, and 7.5 to 9 feet tall. They are the only motorized RV class that regularly fits inside a standard 20-foot residential garage. Interior ceiling height is typically 6 to 6.5 feet, which matters for taller owners spending extended time inside.
Class C Motorhome
Class C motorhomes range from 21 to 35 feet in length. Exterior width runs up to 102 inches, and roof height is typically 10 to 12 feet. The cab-over bunk is the defining exterior feature, extending forward above the cab. At 21 to 26 feet, most Class Cs fit the majority of campground size restrictions without requiring a pull-through site.
Travel Trailer
Travel trailer length runs 10 to 35 feet for the body itself. The A-frame tongue adds another 3 to 5 feet to the overall length, and that tongue length must be included when assessing campsite fit or legal combination length. Exterior width typically falls between 7.5 and 8.5 feet. Roof height ranges from 9 to 11.5 feet before adding rooftop equipment. Trailers under 25 feet offer the widest campground compatibility across both public and private sites. For more on selecting the right size, see travel trailer sizes and how to choose.
Fifth-Wheel Trailer
A fifth wheel trailer body typically runs 22 to 40 feet in length. Unlike a travel trailer, the pin box extends 3 to 5 feet over the truck bed, which adds to the towing combination’s overall length without appearing in the trailer’s stated dimensions. Exterior width reaches up to 102 inches. Roof height is 12 to 13.5 feet due to the raised front section, giving the front bedroom an interior ceiling height of 6.5 to 7 feet.
Tow vehicle compatibility requires a pickup truck with a fifth-wheel hitch receiver class rated for the trailer’s gross vehicle weight rating (GVWR). For context on how weight affects your towing setup, see UVW weight and towing capacity.
Pop-Up Camper and Teardrop Trailer
Pop-up camper dimensions in the collapsed position run 8 to 16 feet in length at under 5 feet tall, making them the most garage-compatible towable RV option available. When extended at a campsite, they reach 16 to 23 feet. Teardrop trailers are smaller still, at 8 to 14 feet in length and 5 to 7 feet tall. Both types fit virtually all campground size restrictions and tow behind vehicles with a standard hitch receiver class rated for light loads.
Interior vs. Exterior Dimensions: Why the Numbers Don’t Match
A trailer listed at 8 feet (96 inches) wide will not have 96-inch rooms inside. Wall thickness, exterior cladding, insulation, and chassis rail width collectively reduce the livable space by 8 to 14 inches relative to the stated exterior width. A room in that 8-foot trailer will measure closer to 82 to 88 inches across.
The same principle applies vertically. Ceiling joists, roof structure, and subfloor depth mean interior ceiling height runs 6 to 8 inches shorter than the exterior roof height in most models. RVIA standards govern the minimum interior clearances manufacturers must meet, but those minimums do not close the gap between exterior specs and the space you actually live in.
How Slide-Outs Affect Usable Width
A slide-out room extends into the campsite and can add 2 to 4 feet of interior width when deployed. That same room folds back into the trailer body on the road. The trailer’s legal exterior width is always measured at the retracted body, so a unit with a large slide-out may feel considerably wider inside at camp than the spec sheet suggests. It is the most common source of confusion when buyers compare floor plan dimensions to a dealer’s listed exterior width.
Legal Road Limits for RV Length, Width, and Height
Knowing your RV’s dimensions is useful. Knowing which dimensions are legally regulated before you tow it on a public road is necessary. Federal and state rules establish hard limits on width, height, and combination length. Understanding how much an RV weighs and why it matters is the logical companion step, since weight and size limits often work together at weigh stations.
The federal maximum exterior width for RVs on interstate highways is 102 inches, as established under 23 CFR Part 658. Federal design standards set 14 feet as the minimum overpass clearance on the interstate system, though older and non-highway structures can run lower. Length is where regulation varies most by state.
State-by-State Width Variations
The 102-inch federal standard applies to the interstate highway system. State highway regulations on secondary roads can impose stricter limits, and your route likely includes both. If your towable RV sits near the 102-inch maximum legal trailer width, verify each state’s DOT regulations before departure. The FHWA publishes a state-by-state size regulations report with current figures for every state.
Combination Length Rules for Towed RVs
When towing a fifth wheel trailer or travel trailer, the legal length limit applies to the full vehicle combination, not just the trailer body. Most states cap combination length between 65 and 75 feet. California sets a 65-foot limit on most routes, with 75 feet permitted on designated routes per Caltrans. A 35-foot fifth wheel behind a long-bed pickup can approach that limit quickly. Always confirm your state’s specific combination limit before a long-distance tow.
License requirements are a related consideration. Most states do not require a special license for personal RVs under 26,001 lbs GVWR. Commercial use or loads above that threshold can trigger CDL requirements depending on the state.
How RV Dimensions Affect Storage Unit Selection
Your RV’s dimensions determine which storage options are actually available to you, not just which ones look good on a facility’s website. Length eliminates the most options. Most Class A motorhomes require a storage unit 40 to 50 feet long. Travel trailers typically fit units in the 20-to-40-foot range. Class B camper vans often fit a standard 20-foot unit.
Height is the dimension most commonly overlooked during the search. A 13-foot Class A needs a storage facility with door clearance above 13 feet, which rules out many standard enclosed units. Outdoor covered storage or open-row storage is the most common practical solution for Class A and fifth wheel trailer owners.
RecNation’s RV storage facilities offer open, covered, and enclosed options sized for large vehicles, including Class A motorhomes and fifth-wheel trailers that exceed 40 feet. For a thorough walkthrough of your options, the ultimate guide to RV storage covers unit types, costs, and what to look for.
Width matters too, though it is rarely the deciding factor. An 8.5-foot-wide trailer needs an access lane wide enough to open doors and deploy slide-outs for inspection. Always ask a facility for exact aisle width, not just unit width.
Matching Your RV’s Height to Covered Storage Clearance
The manufacturer’s listed height is a starting point, not the figure to give a storage facility. Rooftop AC units, antennas, and roof vents routinely add 8 to 12 inches above the structural roof. Add that margin to your manufacturer spec before comparing against any facility’s door height. Ask the facility staff for the exact door clearance measurement, not a general statement that they accommodate RVs. One inch of miscalculation at a roll-up door is enough to cause real damage.
Once you know your RV’s length, width, and height, you have everything you need to find a storage option that actually fits. RecNation RV storage offers open, covered, and enclosed spaces across more than 50 facilities, sized to accommodate everything from compact travel trailers to full-length Class A motorhomes, so your RV is protected and ready when you are.
Frequently Asked Questions
What is the maximum legal width for a travel trailer on US highways?
The federal maximum width for travel trailers and RVs on interstate highways is 8 feet 6 inches (102 inches), established under 23 CFR Part 658 and administered by the Federal Highway Administration. Some state secondary roads impose stricter limits, so check each state’s regulations if your trailer is near the 102-inch maximum legal trailer width. Slide-out rooms do not count toward this measurement when retracted.
How long is too long for a travel trailer to fit in most campgrounds?
Most National Park Service campgrounds accommodate RVs up to 27 feet, accounting for the tongue. California state parks publish specific limits by park, with many sites capped between 24 and 35 feet. Private campgrounds often accommodate trailers up to 40 to 45 feet, but loop road turning radius and site pad length are the real limiting factors. Always check campground size restrictions before booking a trailer over 30 feet.
What is the average height of a travel trailer including the AC unit?
Most travel trailers have a manufacturer-listed roof height of 10 to 11.5 feet. Rooftop air conditioning units add 8 to 12 inches, so plan for a real-world clearance height of 11 to 13 feet when assessing bridges, overpasses, or storage facility entry. Fifth-wheel trailers and Class A motorhomes run taller, often reaching 12.5 to 13.5 feet including rooftop equipment.
How do fifth-wheel trailer dimensions differ from standard travel trailers?
Fifth-wheel trailers are generally taller than same-length travel trailers. The raised front section adds 1.5 to 2 feet of height, bringing total height to 12.5 to 13.5 feet. The pin box also extends 3 to 5 feet over the truck bed, making the legal towing combination longer than the trailer’s stated length. At equal nominal length, a fifth wheel typically offers more interior ceiling height in the front bedroom and a higher gross vehicle weight rating (GVWR) than a comparable travel trailer.
Does trailer length include the hitch and tongue when measuring?
Manufacturers typically list trailer length as the body only, measured from the front wall to the rear bumper. The A-frame tongue adds another 3 to 5 feet and is not included in that figure. For campsite fit or legal combination length, use the overall length including the tongue. For fifth wheels, the manufacturer’s stated length also excludes the pin box overhang, which further extends the actual combination length.
