Tent for a Truck With a Cap: What Actually Fits
Three tent types work with a truck cap left on: an SUV tent sleeved over the cap's rear door (cap top under 80 in), a pole-less cap tent, or a roof tent on the rack.
A standard truck bed tent will not work with a cap on, because it needs the open bed and the rails. With the cap in place you have three real options. The first is an SUV tent: a ground tent with a fabric sleeve that cinches around the back of the cap, and Napier says its sleeved tents fit any cap whose door or window top is no more than 80 inches off the ground. The second is a cap tent: a small pole-less extension that hangs from the cap’s rear door and covers the dropped tailgate, which turns a 67 inch bed into roughly 85 inches of sleeping length. The third is a roof top tent on the cap’s rack, which is the most expensive route and the one most limited by what the cap shell is rated to carry. Which one you want depends on whether you plan to sleep in the bed or next to it.
Why bed tents are out and what replaces them
A truck bed tent (the Napier Backroadz and Rightline styles) sets up inside an open bed with poles that reach the full height of the tent, and its floor covers the bed from the cab wall to the tailgate. A cap takes away the headroom and the attachment points. So the question “tent for truck with cap” really means one of three things: a tent that attaches to the outside of the cap so the bed becomes a bedroom with a vestibule, a tent that extends the bed out over the tailgate so a tall person can lie flat, or a tent that sits on top of the cap. Each has a measurement you need before buying, and none of the big tent roundups give you those measurements in one place.
Option 1: an SUV tent sleeved over the cap
SUV tents were designed for the open hatch of a crossover or minivan, but the elastic sleeve does not care what it is wrapped around, within limits. Napier’s FAQ answers the cap question directly: models 82000, 84000, and 19100 are compatible with trucks with caps “as long as the height from the ground to the highest point of the cap window/door does not exceed 80 inches.” Measure from the ground to the top edge of the cap’s rear door with the tailgate down. A cab-height cap on a stock half-ton usually lands in the mid 70s; a mid-rise or high-rise cap on a lifted truck can go past 80, and then the sleeve will not reach the ground. The rear door must also be a lift-up hatch, not barn doors, for the sleeve to seal.
With the sleeve on, you can sleep in the bed under the cap and use the tent as a standing-height room for changing, cooking in the rain, or a second sleeping space. Expect a few small gaps around the sleeve on a truck, since it was shaped for a rounded hatch. A towel or a strip of foam pipe insulation along the tailgate edge closes most of them.
Option 2: a cap tent that extends the bed over the tailgate
The pole-less cap tent is the answer people on truck forums keep rediscovering. It is a fabric box that velcros, magnets, or bungees to the cap’s rear opening and drapes over the dropped tailgate, with mesh for airflow. One owner on an overland forum measured his Nissan Titan’s 67 inch bed becoming about 85 inches of sleeping length with the tent on, set up in under ten minutes. The constraints are the tailgate width (the DAC version wants 58 inches or wider) and the cap height: these tents are cut for cab-height caps, and the DAC is reported not to fit tall or extra-tall toppers. The Topper Tent brand sells a separate “tall topper” version for mid-rise caps like the A.R.E. MX and Leer 180, so check your cap model against the maker’s list rather than guessing.
Option 3: a roof top tent on the cap
A roof top tent on a cap works, but the limiting number is the cap, not the rack. Leer’s FAQ lists its Thule AeroBlade rack option at a 220 lb maximum load and its Tracker II rails at 165 lb. A Leer email that an owner posted on a Tacoma forum gave fiberglass caps a 150 lb dynamic rating (200 lb for commercial fiberglass) and 500 lb evenly distributed static weight only when a tent is on top. Etrailer’s experts put the Leer XR at 600 lb static with a Rhino-Rack that carries 220 lb moving. Popular hard-shell tents weigh 95 to 170 lb before you add people. If your cap maker will not give you a dynamic rating in writing, do not put a roof tent on it. Also plan on drilling: most cap-rated tracks bolt through the shell.
The cap tents and SUV tents that fit
Napier Backroadz SUV Tent 19100
A 10 x 10 ft floor and an 88 inch center height, so it is a real room beside the truck, and the sleeve unzips so the tent stands alone when the truck leaves camp. Napier lists it for all CUVs, SUVs, and minivans and confirms in its FAQ that it works on a capped truck under the 80 inch door-top rule. It is the cheapest sleeved option from the brand. Check price on Amazon
Napier Sportz SUV Tent 82000
The 9 x 9 ft floor and 87 inch center height are close to the Backroadz, but this one adds a 6 x 6 ft awning, a full rain fly, two doors, and a heavier 1200 mm coating, at about 30 lb packed. Same 80 inch cap limit. Worth the extra money if you camp in rain more than sun. Check price on Amazon
DAC Full Size Truck Cap Tent
A 4 lb pole-less tent supported by the cap’s own rear window, held on with shock cord and coated hooks to the frame, with a no-see-um screen. The retailer listing requires a tailgate 58 inches or wider and says it fits high-back and flat-back camper tops; owner reports say it does not fit tall toppers. A mid-size version exists for Tacoma, Ranger, and Frontier class beds. Check price on Amazon
Topper Tent Mid-Size
Sold in a carpeted version that velcros into the cap’s headliner, a Softopper version that zips in, a Smartcap version that attaches magnetically, and a tall version for caps about 5 inches above cab height. The maker lists the Tacoma, Colorado, Ranger, Frontier, Ridgeline, Gladiator, and Maverick, and sells a full-size model too. The maker does not publish floor dimensions, so treat it as covering the tailgate length. Check price on Amazon
Sleeping under the cap without any tent
Plenty of people skip the tent and sleep in the bed with the cap closed. Two things make that work. Put a foam pad or closed-cell layer under your mattress, because the bed floor is a metal sheet that pulls heat out of you all night. And open something: a cap with the windows shut holds every breath you exhale, and owners report condensation on the ceiling even in winter with a side window cracked. Magnetic mesh screens (Skeeter Beater makes them in sizes for truck caps) go over the open side windows; for flip-up windows with struts, sewn-on velcro that grips the carpeted headliner works where magnets will not. Never run a fuel heater inside a closed cap; see car camping in winter without a heater for what to do instead.
Related fit questions
If your truck has no cap, the bed-length table in truck bed tents for the F-150 and Ranger tells you which size to buy, and Maverick owners have their own short-bed problem covered in tents for the Ford Maverick bed. For a mattress that fits the bed between the wheel wells, see the car camping mattress guide.