Source-linked specifications for the Big Agnes Copper Spur UL3 mtnGLO — 3 person. This is a detailed tents record, checked on 2026-10-30; price and live stock are not verified.
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What the specs mean
The maker lists a 3-person capacity. That is a nominal count, not a promise that 3 full-width pads fit. Compare both the narrowest and widest floor widths, door access, and the pad outline before relying on a fit estimate. A missing minimum width is a reason to measure in person. Listed minimum weight is 3.48 lb (1,580 g); packaged weight is 3.95 lb (1,790 g). Use the packed figure for a full carry estimate.
Read the exact variant
3 person is the recorded option. Other sizes or revisions may have different dimensions, weight, or test labels.
Reported specifications
Unit conversions are calculated from the source value. Open the source tag for the originally published number.
| Specification | Manufacturer or retailer value |
|---|---|
| Claimed capacity | 3 [tm080] |
| Season label | 3-season [tm080] |
| Pitch structure | freestanding [tm080] |
| Floor length | 90 in [tm081] |
| Maximum floor width | 70 in [tm081] |
| Minimum floor width | 62 in [tm081] |
| Floor area | 41 sq ft [tm080] |
| Peak height | 43 in [tm080] |
| Minimum weight | 3.48 lb [tm080] |
| Packed weight | 3.95 lb [tm080] |
| Doors | 2 [tm080] |
| Vestibules | 2 [tm080] |
| Fly fabric | HyperBead 15D nylon with 20D solution-dyed ripstop grid [tm080] |
| Floor fabric | HyperBead 15D nylon with 20D solution-dyed ripstop grid [tm080] |
| Fly hydrostatic head | 1,500 mm [tm080] |
| Floor hydrostatic head | 1,500 mm [tm080] |
| Footprint included | No [tm080] |
| Packed length | 21 in [tm080] |
| Packed diameter | 5 in [tm080] |
| Vestibule area each sq ft | 9 sq ft [tm080] |
| Fast fly weight g | 2.71 lb [tm080] |
| Seam treatment | Solvent-free PU tape [tm080] |
| Pole material | DAC Featherlite NFL [tm080] |
| Integrated lighting | mtnGLO, requires 3 AAA batteries [tm080] |
| Stakes included | 11 [tm080] |
A blank or unverified value means the dataset cannot support a number; it does not mean zero. Each source tag opens the record used for that field.
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Verification limits
Evidence basis: manufacturer_declared. US market: confirmed. Listing status: listed. These labels do not establish current stock.
Unverified fields: See blank fields in the source data.
- Fast-fly weight is a separate shelter configuration requiring compatible footprint; do not compare it directly with a complete inner/fly tent.
Where these facts came from
- Copper Spur UL3 mtnGLO — Big Agnes, accessed 2026-10-30 [tm080]
- Copper Spur UL3 mtnGLO official floor-plan diagram — Big Agnes, accessed 2026-10-30 [tm081]
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Questions to ask before buying
Is the listed price current?
No price or live stock data is included. Use the official product link for the current listing.
Does a nominal capacity or temperature label guarantee fit or warmth?
No. Compare exact dimensions and tested values where available, then allow for real-world conditions.
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