REI Co-op Half Dome 2
Floor 88 × 52 in, 42 in peak, vestibules 9.2 sq ft + 9.2 sq ft. Drawn to scale from the maker's listing; the grid is 6 in.
Which pads fit
An inch or more to every wall. Sit-up room +5.1 in.
An inch or more to every wall. Sit-up room +4.3 in.
An inch or more to every wall. Sit-up room +5.1 in.
An inch or more to every wall. Sit-up room +4.3 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.
Headroom
| Roof overhead | Floor | Share |
|---|---|---|
| Anywhere | 31.8 sq ft | 100% |
| 12 in or more | 30.5 sq ft | 96% |
| 24 in or more | 25.4 sq ft | 80% |
| 36 in or more | 13.4 sq ft | 42% |
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) | 88 × 52 in, 31.8 sq ft |
|---|---|
| Peak | 42 in (3 ft 6 in) |
| Vestibules | 9.2 sq ft + 9.2 sq ft |
| Sleeps (maker) | 2 |
| Packed weight | 95.1 oz (5 lb 15.1 oz) |
| Packed volume | 19.2 L |
| Regular pads that fit | 2 with an inch to every wall |
| Sit-up room on a pad, at the peak | +6 in for 35 in sitting height |
| Pitched footprint | 88 × 108 in (7 ft 4 in × 9 ft), floor and vestibules |
| Groundsheet to cut | About 86 × 50 in |
On the campsite
Floor and vestibules together cover 88 × 108 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 86 × 50 in.
Notes
Floor 88 × 52 in, 42 in peak, two 9.17 ft² vestibules. Its packaged weight and packed size include the matching footprint. It replaced the Half Dome SL 2+.
Sources
- REI Co-op: REI Co-op Half Dome 2 Tent with Footprint Checked 2026-10-21
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.