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Outdoor All-Weather Cover
The fitted slate cover that ships free with every SweatBox Outdoor. It drapes the whole cabin down past the elevated base, and because your cedar is raw and unsealed by design, it is the sauna's only finish. We recommend replacing it every 3–4 months so it stays fully waterproof and weatherproof.
Three fitted covers at $116.67 each — $55 less than buying them one at a time.
Covers roughly a full year. Most owners keep the spares in the garage so the swap never waits on a delivery.
Raw cedar was a choice. The cover is what pays for it.
We leave the SweatBox Outdoor's Canadian cedar completely unfinished. No stain, no varnish, no sealant of any kind. That is a deliberate decision and not a shortcut: at 180°F, a chemical finish is a chemical finish you are breathing, and we would rather the air inside your sauna be warm cedar and nothing else.
The trade is simple and worth naming plainly. Sealed wood defends itself. Raw wood doesn't. On the Outdoor, the fitted all-weather cover does the job a sealant would do on someone else's sauna — which is why it isn't an accessory in the usual sense. It's the finish, and it's the one part of the sauna with a service life.
Most outdoor saunas answer the weather twice over: a sealed finish on the wood, and a pitched, tiled roof to throw water off the top. We passed on both, for the same reason. A slanted tiled roof would have wrecked the flat, quiet silhouette the SweatBox is built around — it would look like a shed in your yard instead of the thing you actually wanted — and a sealed finish would have cost us the air inside. So the cover does both jobs at once. It sheds water the way a roof would and protects the wood the way a sealant would, and when it comes off, the sauna still looks like itself.
Keep it on during all moisture: rain, snow, morning dew, sprinkler overspray. Combined with the Outdoor's elevated base, that habit is the entire maintenance routine. There is no sanding, staining, or sealing to do — ever.
Replace it on the calendar, not when it looks bad.
This is the part owners get wrong, and it is an easy mistake to make. A weathered cover looks basically fine long after it has stopped performing. Waterproofing fails invisibly — and by the time you can see the problem, you are usually looking at the cedar, not the cover.
Months 1–3: doing its job
Water beads and sheets off. The cabin underneath stays dry through rain, snow, and the dew that settles on almost every clear night. This is what you paid for and it is working exactly as intended.
Months 3–4: the quiet drop-off
UV, freeze-thaw cycles, and constant wet-dry loading start to degrade the material's weatherproofing. The cover still looks like a cover. It is no longer sealing like one. This is the window we recommend swapping in a fresh one.
Past month 4: the cedar starts paying
Moisture that gets past a spent cover reaches raw, unsealed wood and stays there. Cedar is naturally resistant to mold and mildew, which buys you real margin — but resistance is not immunity, and staining and warping are far harder to undo than a $135 swap.
The habit that makes it painless
Buy ahead. Owners who keep two spares on a garage shelf actually hit the interval; owners who reorder when they remember usually don't. That is the entire reason the 3-pack exists — not to sell you more, but because a cover sitting in your garage is the only one that gets swapped on time.
The honest math.
You need one today
Your current cover is at or past the interval and you want it handled now. Shipping is included in the price, so $135 is what you pay — it goes out by USPS or UPS, with no shipping line at checkout and no sales tax on top.
You want it off your list
Three covers works out to $116.67 each, or $55 less than three singles. At a 3–4 month interval that is roughly a year of protection sitting on your shelf, and no reorder to remember twice more.
What's the same
Identical cover, cut to fit the same cabin with room to drape past the elevated base. Shipping included in both prices, by USPS or UPS. No sales tax, because we're an Oregon company. 14-day returns from delivery.
