Tahoe Sauna Company · 4–6 Person Outdoor Sauna Plan (8x8)
Everything you need for the 8x8 build, with the quantities from your plan and a link to where we buy each item. Prices are estimates from when the plan was priced and will drift — check the store before you budget to the dollar. Lumber prices especially move around and vary by store.
Some links on this page are affiliate links. As an Amazon Associate, Tahoe Sauna Company earns from qualifying purchases. It doesn't change your price, and we only list what we'd use on our own builds.
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| 2x4x8 | 48 | $3.82 | Buy at Home Depot ↗ | |
| 2x4x10 | 19 | $5.98 | Buy at Home Depot ↗ | |
| 2x6x8 (pressure treated) | 9 | $11.78 | Buy at Home Depot ↗ | |
| OSB (walls, floor, and roof) | 8 | $17.48 | Buy at Home Depot ↗ | |
| Simpson ties 2x6 (foundation) | 8 | $1.56 | Buy at Home Depot ↗ | |
| Plastic deck blocks | 9 | $11.52 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Concrete backer board (3x5 ft) | 5 | $17.50 | Buy at Home Depot ↗ | Standard floor: backer board over the OSB subfloor, tile on top |
| Grout (10 lb) | 2 | $18.48 | Buy at Home Depot ↗ | For tile |
| Thin-set mortar (50 lb) | 1 | $14.97 | Buy at Home Depot ↗ | For setting tile |
| Porcelain mosaic tile (1 sq ft sheets) | 60 | $4.98 | Buy at Home Depot ↗ | Any non-slip porcelain tile works |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Fiberglass insulation (walls and ceiling) | 8 | $26.27 | Buy at Home Depot ↗ | |
| Aluminum moisture barrier wrap | 1 | See Amazon | Buy at Amazon ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Cedar T&G 1x6x12 | 65 | $22.87 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| LED Lights | 1 | See Amazon | Buy at Amazon ↗ | |
| Adapter | 1 | See Amazon | Buy at Amazon ↗ | |
| 14-Gauge Electrical Wire (NM-B) | 1 | See Amazon | Buy at Amazon ↗ | For the lights (and the optional fan) |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| 2x4x8 redwood | 30 | $11.38 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Plywood Siding | 9 | $44.34 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Door | 1 | $142.00 | Buy at Home Depot ↗ | |
| Hinges | 1 | $5.20 | Buy at Home Depot ↗ | |
| Handles | 1 | See Amazon | Buy at Amazon ↗ | |
| Door Latch | 1 | See Amazon | Buy at Amazon ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Building wrap | 1 | $39.00 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Windows | 1 | $200.00 | Source locally |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Facia board | 4 | $8.73 | Buy at Home Depot ↗ | |
| Stain/paint | 1 | $50.00 | Source locally | |
| Drip edge | 4 | $8.48 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Shingles | 4 | $41.47 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Air gap spacers (furring strips) | 38 | $1.75 | Buy at Home Depot ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Screws | 3 | $9.98 | Buy at Home Depot ↗ | |
| Window caulk | 2 | $7.98 | Buy at Home Depot ↗ | |
| Roofing Nails | 1 | $49.99 | — | |
| Framing nails | 1 | $48.68 | Buy at Home Depot ↗ | |
| Brad nails | 1 | $27.68 | Buy at Home Depot ↗ | |
| Roof underlayment | 1 | $34.98 | Buy at Home Depot ↗ | |
| Aluminum tape | 1 | See Amazon | Buy at Amazon ↗ | |
| Window flashing tape | 1 | See Amazon | Buy at Amazon ↗ |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Interior adjustable vent covers | 3 | See Amazon | Buy at Amazon ↗ | Slide-open wood vent panels inside the sauna |
| Exterior vent caps (4") | 2 | See Amazon | Buy at Amazon ↗ | Outside wall, over the vent openings |
| 4" flexible ducting (16 ft) | 1 | See Amazon | Buy at Amazon ↗ | Inside the walls, from the vent openings to the exterior caps |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Harvia KIP 80 with Xenio WiFi controls | 1 | $1,847.00 | Buy at SteamSaunaBath ↗ | The version without WiFi is around $1,000 |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| AC Infinity CLOUDLINE S4 4" inline exhaust fan 89.99 Optional. Pulls air out through the low exhaust vent by the foot bench; includes a speed controller https://www.amazon.com/dp/B07JB292JC?tag=1987023f-20 | 1 | See Amazon | Buy at Amazon ↗ | Optional. Pulls air out through the low exhaust vent by the foot bench; includes a speed controller |
| 4" duct clamps | 1 | See Amazon | Buy at Amazon ↗ | Optional. Clamp the duct to the fan |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Floor drain | 1 | See Amazon | Buy at Amazon ↗ | Centered in the room. Run the line to daylight, a dry well, or a plumbing tie-in per local code |
| Shims for the sloped floor (bundle) | 2 | $14.98 | Buy at Home Depot ↗ | Starburst pattern from the drain, about 1/4" drop per foot |
| Item | Qty | Est. unit cost | Where to buy | Notes |
|---|---|---|---|---|
| Concrete topping mix (80 lb) | 5 | $8.48 | Buy at Home Depot ↗ | Spread over the shims and screed to the shim tops so the slope stays. A self-leveler would flow flat, so use a topping mix |
| EPDM rubber floor membrane | 1 | See Amazon | Buy at Amazon ↗ | Over the cured sloped base, a few inches up the walls, sealed to the drain flange |
| EPDM bonding adhesive | 1 | See Amazon | Buy at Amazon ↗ | Glues the EPDM to the sloped base |
| Water cut-off mastic (11 oz) | 2 | $10.97 | Buy at Home Depot ↗ | Seals the EPDM at the drain |
| Seam roller | 1 | See Amazon | Buy at Amazon ↗ | Presses the EPDM down |
| Cedar 1x4x8 boards (duckboard) | 24 | $12.83 | Buy at Home Depot ↗ | Removable duckboard sections that sit on the EPDM |
Labor assumes you hire it out. If you're building it yourself, it's your time instead.
Questions about a substitution or a part that's out of stock? Email hello@tahoesaunacompany.com.
Schedule a free 15-minute intro call or send us a message about your project.
We'll learn about your space, goals, and timeline — and recommend the right next step for your project.