Prosaunas Alder 1x4 Sauna Wood, T&G STP Profile, Medium-Gap, Wall Material

Prosaunas Alder 1x4 STP Tongue & Groove Sauna Paneling
Elegant. Durable. Naturally comfortable.

Bring a sense of warmth and timeless beauty to your sauna with Prosaunas Alder STP 1x4 tongue and groove paneling. Designed with broad boards and subtle rounded edges, the STP profile features narrow grooves that add soft texture and visual interest to your walls or ceiling—perfect for creating a refined, finished look.

Sourced from the highest-quality Alder wood, this cladding offers a light, consistent color with a fine grain that complements any modern or traditional sauna design. Naturally water-resistant and resin-free, Alder is also known for its low heat conductivity, which means it stays cool and smooth to the touch—even during your hottest sessions.

The Prosaunas difference starts with our wood selection. We source only the best from Northern Europe and Canada, and each board is precision-milled to meet our exacting standards. With over 55 years of sauna-building expertise, we ensure every shipment delivers consistent quality, beauty, and performance you can trust.

Lumber Size Note:
In North America, wood is sold in nominal sizes—the dimensions before drying and surfacing. Finished boards will be slightly smaller. Please check the size diagram for exact measurements.

🔑 Key Features:

• Premium Alder wood with a light, even finish

• STP profile with rounded edges and narrow groove detailing

• Ideal for sauna walls and ceilings

• Comfortable to the touch in high heat

• Naturally resistant to water, warping, and splinters

• Free from resin and chemicals

• Easy to pair with other profiles for custom designs

• Sustainably sourced from trusted Northern forests

• Backed by 55+ years of sauna craftsmanship