When the snow stacks up and a storm leaves you with miles between you and the truck, a quinzee is a practical shelter anyone with a shovel can build. I’ve slept in more than a few of them over the years—some planned, some improvised—and the difference between a comfortable night and an uncomfortable one is almost always the same: careful site choice, measured construction, and sensible checks before you turn in. Below is a straightforward, field-tested sequence to build a safe, two-person quinzee and what to do if things don’t go to plan.
Gear and site selection
Keep the kit simple. For a two-person quinzee you’ll want: a sturdy snow shovel (long-handled), a probe or ski pole for checking depth, a taped measuring stick or ski pole marked at 30 and 40 cm, several short branches for markers, a headlamp, cord to mark the entrance, and a small pruning saw or wire saw for clearing brush. Bring an emergency bivy, closed-cell foam pads and an insulated sleeping pad.
Pick a site on stable ground away from avalanche terrain, tree wells, thin snow over rocks or streams, and obvious overhangs. Face the entrance downhill or to the leeward side so wind and drifting snow are kept out. If you expect to travel across varied snow, plan for traction or snowshoes on the approach—our practical guide to choosing traction and snowshoes shows how to match devices to the conditions and save energy on the walk-in: Use traction devices and snowshoes on icy trails.
Step-by-step build (measured and steady)
- Clear and mark your footprint. Remove surface debris, low branches and create a roughly circular work area about 3–4 m across.
- Create the mound. Shovel snow into a circular pile 1.5–2.0 m high and about 2.5–3.0 m across. Pack and stomp the mound as you go to reduce large voids; the firmer you pack, the faster the snow will sinter into a solid block.
- Sinter time. Let the mound sit 30–120 minutes. In very cold, dry weather 30–60 minutes can be enough; in milder or wet snow give it 90–120 minutes so crystals bond and the structure gains strength.
- Install marker stakes. From outside, push several short branches or markers through the shell pointing to the future interior surface. These warn you if the roof begins to sag later.
- Dig a low entrance. Carve a down-and-then-up entrance tunnel 1–1.5 m long and about 50–60 cm high so it serves as a cold trap. Keep the tunnel low relative to the living chamber.
- Hollow the chamber. From inside, scoop out the interior. Use your measuring stick against the markers—stop carving when the stick touches a marker; that leaves roughly 30–35 cm of wall thickness. Shape the ceiling as a gentle dome; domes shed load better than flat ceilings.
- Finish details. Build a raised sleeping shelf 15–30 cm above the floor, and make a 2–3 cm ventilation hole near the dome apex (probe up and cut a small channel out). Keep the entrance clear and mark the exit path with cord or branches.
Safety checks, behavior inside, and testing
Before you sleep, do the checks that matter. Probe wall thickness all around; walk the outside perimeter and gently tap the roof—solid snow gives a dull thud, soft or hollow spots sound different. Watch your marker branches for inward movement. Leave the shovel just inside the tunnel, not buried, and keep an obvious exit path. Avoid open flames inside the quinzee. If you must cook briefly, use a small gas stove outside the chamber or in the entrance with the door partly open and a dedicated vent—carbon monoxide is the risk to respect.
Nighttime habits: keep ventilation small but present (the 2–3 cm vent plus a partly-open entrance), sleep on a raised shelf with a closed-cell pad under an insulated sleeping pad, and use sealed hot-water bottles wrapped in fabric for localized warmth. Dress to manage sweat before going in—our layering guide explains how to move, stop, and change layers so you don’t ice your kit overnight: Layering strategies for winter camping.
Troubleshooting and small repairs
Soft spots or sagging markers are your red flags. If you notice a single small soft spot while carving, stop and leave a thicker wall there; you can patch later from the outside by packing new snow and tamping it firmly, then giving it time to sinter. For larger sagging or rapid marker movement, evacuate and rebuild on safer ground—the temporary fix isn’t worth the risk. If melting or heavy condensation becomes a problem (roof feels slick or glossy), increase ventilation and reduce internal humidity: change into dry layers before entering, limit wet gear inside, and open the vent for a longer period during the night.
Common quick fixes:
- Small crack in the ceiling: tamp packed snow over it from the outside and let set 30–60 minutes.
- Entrance drifted shut: dig from inside using your shovel or feet as a last resort; always keep at least one shovel blade accessible.
- Frozen gear: store electronics and spare batteries inside clothing to keep them functional; cold drains batteries fast.
Practice this build once in benign conditions before you rely on a quinzee for an overnight. I’ve taught new folks to build one in a day—slow hands, steady measuring, and simple checks are what make it reliable. Take photos or a short log (time, temperature, snow type) so you can refine the next build. Done right, a quinzee is a quiet, effective shelter that keeps you moving and comfortable through a long winter night. Get out, practice, and bring an extra pair of dry socks—you’ll sleep better for it.
