TentCheck

Kelty Late Start 4

Floor 99 × 80 in, 56 in peak, vestibules 9 sq ft. Drawn to scale from the maker's listing; the grid is 6 in.

Which pads fit

4 regular padsFits

An inch or more to every wall. Sit-up room +10.6 in.

A queen air mattressFits

An inch or more to every wall. Sit-up room +10.5 in.

Two queen air mattressesDoesn't fit

They don't fit side by side: 10.5 in past the wall.

Two camp cotsFits

An inch or more to every wall. Sit-up room +1.1 in.

Pads side by side at their listed sizes, with the average man (5 ft 9 in) lying on each. "Tight" is under an inch to a wall or the sloping roof: the fabric gives, but a wet wall wets what touches it. Open it in TentCheck to try your own pads, cots and gear, or read how fits are checked.

Where two queen air mattresses fit instead

The lightest car camping tents where they fit with an inch to every wall.

Check every car camping tent for two queen air mattresses

Headroom

Roof overheadFloorShare
Anywhere55 sq ft100%
12 in or more52.8 sq ft96%
24 in or more46.1 sq ft84%
36 in or more34.6 sq ft63%

From the modeled roof, not measured. About 36 in is where an average adult sits up straight on a pad: a 35 in sitting height, plus the pad.

The numbers

Floor (listed)99 × 80 in, 55 sq ft
Peak56 in (4 ft 8 in)
Vestibules9 sq ft
Sleeps (maker)4
Packed weight111 oz (6 lb 15 oz)
Packed volume16.6 L
Regular pads that fit4 with an inch to every wall
Sit-up room on a pad, at the peak+20 in for 35 in sitting height
Standing room0 sq ft at 5 ft 9 in, 0 sq ft at 5 ft 3.5 in
Pitched footprint99 × 113 in (8 ft 3 in × 9 ft 5 in), floor and vestibules
Groundsheet to cutAbout 97 × 78 in

On the campsite

Floor and vestibules together cover 99 × 113 in. On a square tent pad, as campgrounds list them: 8 × 8 ft: doesn't fit; 10 × 10 ft: fits; 12 × 12 ft: fits. Guylines and stakes need more room around that.

For a groundsheet, cut it a little smaller than the floor, about 2 in, so rain running off the fly doesn't collect on it and run under the tent: about 97 × 78 in.

Notes

Floor 99 × 80 in, 56 in peak, one door with a 9 ft² vestibule; Kelty does not say which wall the door is on.

Sources

Roof shapes are modeled from the floor, the peak and how the poles hold the walls, not measured. Treat a result within an inch or two as too close to call.