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Sauna Hardware
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Check out this bundle:
Cedar Sauna Cleaner - 1 Litre
C$47.58
WHY CHOOSE NORTHERN LIGHTS?
100% Clear Western Red Cedar
Cedar has long been the premier sauna wood. Clear Cedar has no knots ensuring the longevity of our product products
Electric - Wood Fired - Infrared
The most heating choices to build your sauna. Choose from wood fired, infrared or our surgical stainless steel electric sauna heaters
Best Warranty
Our commitment to quality has been the conrner stone of our success. Our barrel saunas come complete with a full 5 year warranty.
Customer Support
We are Sauna Enthusiast first and foremost. Give us a call and let us help discuss all your sauna needs.
Insulated Red Cedar Sauna Door with Window - Right Hand Swing
C$1,575.00
- This is the right hand swing version of our insulated red cedar sauna door. The slab is solid red ce..
Build and Maintain With
SAUNA HARDWARE
Everything you need to build and maintain your very own sauna oasis.
MOST POPULAR
SAUNA BUILDING MATERIALS
Are you looking at building your own sauna room. An easy way to do this is by shopping for one of our DIY Sauna kits. However if you already have some materials, then let us help you find the rest to complete your sauna project. From Sauna Doors, to sauna lights we have you covered.
SAUNA LIGHTS
Accessories
SAUNA DOORS
Accessories
SAUNA SEALENT
Accessories
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Sauna hardware is the unsexy but essential category — vapor barriers, replacement rocks, sauna-rated lights, bench backrests, floor mats, the cedar sauna door, and the small components that keep an installed sauna running for 25 years instead of 5. We stock 18 hardware items from $60 sauna lights through $2,126 cedar doors. If you're building from scratch or maintaining an older sauna, this is where the consumables and structural-finish pieces live.
Vapor barrier: the most important item you'll install
The aluminum foil vapor barrier ($122 per 275 sq ft) goes between the cedar interior and the framed wall studs. Its job is to keep humidity from a working sauna out of the wall cavity — without it, every session pushes moisture into the studs and insulation, mould grows behind the cedar, and the framing rots within 5-10 years. Foil is non-negotiable in any properly built sauna.
Installation: staple the foil to the studs with the shiny side facing IN (toward the cedar interior). Overlap seams by 3-4 inches and seal with foil tape. Run it floor to ceiling, around corners, even behind the heater. The cedar interior boards then nail over the foil.
Replacement sauna rocks
Sauna rocks ($78 per 20-lb bag) sit on the heater and become the surface you throw water on. Most heaters take 30-60 lbs depending on size. Peridotite and olivine are the standard materials — they tolerate repeated heat-cycle stress without splitting and absorb water without dissolving minerals.
Replace when rocks show white deposits (mineral buildup from your water), crack visibly, or feel light compared to fresh ones. Heavy weekly use: 3-5 year replacement cycle. Occasional use: 7-10 years.
Don't use river rocks, decorative stones, or limestone — they explode when superheated and wet. Granite is borderline; we don't recommend it.
Cedar sauna doors
The Solid Red Cedar Sauna Door with Vent ($2,126) is purpose-built: solid cedar slab, tempered glass insert, integrated vent grille at the bottom, outward-swinging hinges, stainless steel hardware. The vent is part of the convection design (cool air in low, hot air out through ceiling vent).
For the full sauna door discussion (sizing, retrofits, why outward-swing matters), see sauna doors.
Sauna lights: explosion-proof and humidity-rated
The Oval Sauna Light ($98) is explosion-proof — tempered glass globe, vapor-tight gasket, ceramic socket rated for 75W incandescent in 200°F service. Mount near the ceiling at one corner; that's enough light for the whole room without glare in your eyes when reclined.
Do NOT use regular interior fixtures, LED panels not rated for sauna service, or anything with plastic housings. Standard fixtures fail in three ways: gaskets melt, plastic deforms and falls, condensation enters the housing and shorts the circuit.
Backrests and floor mats
Bench backrests ($104 cedar, $182 heat-treated alder, $257 cedar wood floor mat): bare bench against your spine isn't comfortable in a 30-minute session. A simple cedar backrest cures it for $104. Heat-treated alder costs more but darkens beautifully over time and the wood is harder, so it dings less. The floor mat ($257) sits over a wet sauna floor — cedar duckboards under feet instead of cold tile or sealed concrete.
Smaller items: timers, switches, vent grilles
Sauna timers (mechanical 60-90 minute dial timer): controls the heater externally so you can set-and-walk-away. Wall-mounted vent grilles: pair with the door grille to give you the air-in/air-out pattern that keeps oxygen levels comfortable during long sessions. Foil tape: for sealing vapor barrier seams.
What you'll need for a typical new sauna install
Going from bare studs to a working sauna requires roughly: 1 box vapor barrier ($122 for a 4'x6' room, more for larger), 1 box foil tape, 30-60 lbs of rocks for the heater you bought, 1 sauna light, 1 backrest (or two for larger rooms), 1 floor mat, 2-3 vent grilles, and the door. Budget around $700-1,200 in hardware on top of the cedar interior boards and the heater itself.
For the consumables and personal-care side, see sauna accessories.
Frequently asked questions
Can I skip the vapor barrier?
No. Without a vapor barrier the framing rots from sauna humidity. We've seen 8-year-old saunas that needed full reframing because someone skipped the foil. It's the cheapest part of the build and the most critical.
Why aluminum foil and not a plastic vapor barrier?
Plastic poly sheeting can soften and outgas at sauna temperatures. Foil is the only material that survives the heat without changing. Use foil tape (not duct tape) at the seams — duct tape adhesive fails at high temp.
How often do I really need to replace the rocks?
When they look wrong. White deposits on the surface, hairline cracks, or rocks that feel light versus fresh ones. Heavy users every 3-5 years; light users every 7-10.
Will a regular LED light work in my sauna?
Not safely. LED drivers have plastic housings and capacitors that fail at sauna temperatures. Use only sauna-rated lights with vapor-tight housings and high-temp gaskets.
Is the cedar door worth $2,126 versus a residential door?
Yes. A standard interior door swells from sauna humidity within a season, then binds in the jamb. By year two you're replacing it for $400, then again for $400. The cedar sauna door lasts 25+ years.
