ProSaunas ASPEN 1X5 (15mm x 120mm) T&G STS4 | Sauna Wood, Tongue & Groove, STS4 Profile, Nickel-Gap, Wall Material
An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy, transparent
returns. If you're comparing options, we encourage you to review competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure that never
happens to you.
Official Distributor
An Important Note on Pricing and Returns:
We believe in upfront pricing and fair policies—no hidden fees, no surprises, and easy,
transparent returns. If you're comparing options, we encourage you to review
competitors’ fine print carefully.
We've helped countless customers who had issues elsewhere, and we’re here to make sure
that never happens to you.
Starts at: $1.67/mo Learn More
Or
Monthly payments start at: $1.67/mo Learn More
Ships in 1-5 days at most
Couldn't load pickup availability
Smooth Panels. Subtle Gaps.
PROSAUNAS Aspen 1×5 STS4 T&G is a premium sauna cladding wood designed to create a clean, refined finish across walls and ceilings. With its tongue and groove construction and subtle nickel-gap profile, it delivers a consistent appearance while allowing for natural expansion.
Aspen is known for its light color, fine grain, and low resin content, making it ideal for high-temperature environments. It remains comfortable to the touch and maintains stability under the heat and humidity of sauna conditions.
Each board features an STS4 profile, providing tight alignment with a slight shadow gap for added visual depth. Its precise dimensions and smooth surface ensure easy installation and seamless integration with other sauna materials.
PROSAUNAS selects high-quality Aspen to ensure uniform tone, smooth texture, and reliable durability. The result is a versatile wall material suitable for both residential and commercial sauna interiors.
Features & Benefits
| Feature | Benefit - Why It Matters to Your Build |
|---|---|
| Aspen Sauna Wood | Light-toned hardwood ideal for sauna interiors - offers smooth texture, low resin content, and a comfortable surface in heat. |
| STS4 Nickel-Gap Profile | Subtle spacing between boards - creates a refined shadow line and allows for natural movement. |
| Tongue & Groove Design | Interlocking board system - ensures secure fitting and consistent panel alignment. |
| Wall & Ceiling Cladding | Designed for full interior coverage - delivers a clean, continuous surface finish. |
| Performs in Sauna Conditions | Handles heat and humidity effectively - maintains stability and shape over time. |
| Smooth Surface Quality | Evenly finished faces - enhances both comfort and visual appeal. |
| Consistent Color & Grain | Uniform light tone with fine texture - creates a cohesive and elegant interior look. |
| Stable & Durable Material | Resists warping and movement - supports long-lasting performance. |
| Easy to Work With | Straight, precision-milled boards - allow for simple cutting and installation. |
| Ideal for Sauna Interiors | Creates clean lines with subtle depth - improves both style and functionality. |
Why Choose Aspen STS4 Cladding for Your Sauna Interior?
Three reasons sauna builders prefer Aspen for clean wall and ceiling finishes.
Comfortable in Sauna Heat
Aspen stays cool to the touch even in high temperatures. Its stable structure helps reduce movement - keeping wall panels aligned and consistent over time.
Handles Humidity Smoothly
With low resin content and balanced moisture response, Aspen resists humidity-related issues. This supports long-term durability in sauna environments.
Modern Textured Appearance
The smooth finish, subtle nickel-gap, and pale tone create a bright, refined look. Ideal for wall cladding that enhances overall sauna design.
Specifications
What's Included
- Aspen 1×5 Cladding Boards
- STS4 Tongue & Groove Profile
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.
Why Thousands of Health and Fitness Lovers Choose
Them
Support
Nearly impossible to reach a real person. Endless chatbot loops, auto-replies, and unreturned emails.
Real humans. We answer quickly. Always here, always helpful
Order Processing
Orders often sit for days before being acknowledged. No clear confirmation, updates, or timelines.
Orders are processed immediately. You'll receive confirmation, tracking, and real-time updates within hours.
Shipping
Slow, vague, and unoptimized. Basic carriers, minimal tracking, and delayed delivery windows.
Fast, insured, and fully trackable shipping — optimized for speed and visibility every step of the way.
Pricing
Hidden fees, bait and switch tactics, post purchase price increases.
Our relationships guarantee the lowest prices. Transparent and fair. No surprises at checkout, and no shady
tactics after the sale.
Returns & Warranty
Policies are confusing and designed to frustrate, delay, and deny returns with zero accountability.
Clear, honest, and fast. Our return policy is built to protect your investment, not dodge responsibility.
Support
Frustrating automated responses
Fast, helpful and always supportive
Order Processing
Delays and lack of communication
Instant processing and updates
Shipping
Slow, unreliable and delayed service
Fast, insured, trackable shipping
Pricing
Deceptive pricing practices
Lowest prices, no surprises
Return & Warranty
Frustrating, misleading return policies
Clear, honest return policy
