Big Agnes Blacktail 2
Floor 90 × 52 in, 42 in peak, vestibules 9 sq ft + 9 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 +4.3 in.
An inch or more to every wall. Sit-up room +3.2 in.
An inch or more to every wall. Sit-up room +4.3 in.
An inch or more to every wall. Sit-up room +3.2 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 | 32.5 sq ft | 100% |
| 12 in or more | 30.6 sq ft | 94% |
| 24 in or more | 24 sq ft | 74% |
| 36 in or more | 11.4 sq ft | 35% |
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) | 90 × 52 in, 32.5 sq ft |
|---|---|
| Peak | 42 in (3 ft 6 in) |
| Vestibules | 9 sq ft + 9 sq ft |
| Sleeps (maker) | 2 |
| Packed weight | 88 oz (5 lb 8 oz) |
| Packed volume | 13.2 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 | 90 × 106.1 in (7 ft 6 in × 8 ft 10 in), floor and vestibules |
| Groundsheet to cut | About 88 × 50 in |
On the campsite
Floor and vestibules together cover 90 × 106.1 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 88 × 50 in.
Notes
Floor 90 × 52 in, 42 in peak, two side doors, each with a 9 ft² vestibule. A budget backpacking tent.
Sources
- Big Agnes: Blacktail 2 Backpacking Tent Checked 2026-10-22
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.