Smooth Texture. Defined Finish.
PROSAUNAS Alder 2×2 S4SEE SHP is a premium sauna trim wood crafted to deliver a clean, refined finish for edges, corners, and transitions. Made from high-quality alder, each piece features a smooth surface on all four sides with eased edges for added comfort and a polished appearance.
Alder is a popular sauna material known for its consistent grain, warm tone, and excellent performance in heated environments. It resists splintering and remains comfortable to the touch, making it ideal for interior sauna applications.
Each board features an S4SEE SHP profile, precision-milled with square edges and softened corners. This design allows for seamless installation and crisp, modern detailing throughout your sauna space.
PROSAUNAS selects premium alder to ensure uniform color, smooth texture, and dependable quality. Backed by years of sauna craftsmanship, this trim is suitable for both residential and commercial sauna builds.
Features & Benefits
| Feature | Benefit - Why It Matters to Your Build |
|---|---|
| Alder Wood | Natural hardwood suited for sauna interiors - offers durability, smooth texture, and a warm, even appearance. |
| S4SEE Finish (Smooth 4 Sides, Eased Edges) | Machined on every face with rounded edges - delivers a clean look and comfortable feel. |
| SHP Profile (Square Edge) | Straight-edge design for crisp lines - perfect for detailed trim and finishing applications. |
| Trim & Moulding Application | Ideal for corners, edges, and transitions - adds a refined, finished look to your sauna. |
| Untreated Natural Wood | No thermal modification or coatings - maintains the wood’s natural properties and character. |
| Performs in Sauna Environments | Handles heat conditions without splintering - remains safe and comfortable to the touch. |
| Consistent Tone & Grain | Uniform color with subtle grain pattern - ensures a cohesive and attractive finish. |
| Stable & Reliable Material | Designed to minimize movement - supports long-term durability and alignment. |
| Easy to Cut & Install | Straight, workable boards simplify installation - ideal for precise finishing work. |
| Perfect for Detail Work | Enhances edges and transitions with clean lines - elevates the overall sauna design. |
Why Alder Trim for Your Sauna Interior?
Three reasons builders choose Alder for sauna finishing details.
Comfortable in Sauna Heat
Alder stays smooth and comfortable even in high temperatures. It resists splintering and overheating — making it ideal for interior trim and touchpoints.
Naturally Stable Material
Alder offers good dimensional stability in humid environments. It handles typical sauna moisture levels while maintaining its shape and clean lines.
Warm, Natural Appearance
Its light brown tone and subtle grain create a soft, inviting look. Perfect for trim, edges, and transitions that enhance the overall sauna design.
Specifications

What's Included

- Alder 2×2 Trim Boards
- Square Edge (SHP) Profile
- Natural Alder Wood Material
Shipping Information
Wood products ship via standard freight. Shipping cost is calculated based on order quantity, board lengths, and your delivery location — it is not included in the listed price and will be quoted separately.
- Standard freight shipping on all wood orders
- Shipping cost varies by order size and destination
- Contact PROSAUNAS for a freight quote before ordering
- Bulk orders may qualify for volume pricing
- All orders inspected before shipment for quality assurance
📞 Have Questions?
Our team has 55+ years of experience helping builders select the right wood. We're happy to help you calculate quantities, confirm sizing, or get a shipping quote.
Call: (800) 957-2862
Email: info@peakprimalwellness.com
Mon–Fri 8:00am–5:00pm CT
The PROSAUNAS Quality Promise
PROSAUNAS carefully selects only the finest wood from Northern Europe and Canada, ensuring quality and consistency that meets our stringent standards. Every board is inspected before it ships — because a great sauna starts with great materials.
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Returns & Warranty
Return & Warranty