Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Made in
Model2×3 S4SEE Bench
Size10 Linear Feet, Free Sample
Nominal Thickness2″
Nominal Width3″
Actual Thickness1.1″
Weight (per linear foot)1 lb
Attachments
Gallery

PROSAUNAS Thermo-Aspen 2X3 S4SEE SHP Bench, Backrest & Skirting – Sauna Wood

Narrow bench board, long track record. Thermo-aspen at 2×3 is what most Scandinavian builders reach for when they want a clean, knot-free seat that won’t gap or warp over the years. The thermal modification (heat and steam, nothing else) turns plain aspen into a golden brown that reads as traditional to American eyes, then locks the wood so it can’t hold moisture and won’t move on you. No resin, no splinters, cool under bare skin. Thermo-aspen is the wood we reach for first, and we’d put this board in our own sauna without a second thought. Sold by the linear foot, free samples available. Questions?

Build Your Quote:

Price range: $4.22 through $42.25

Shipping Unloading Notice

Ships Free With Any Sauna Heater Purchase

Shipping

Important: Only select ‘Flat Rate Shipping – $795’ once per order. For all other wood items you add, choose ‘Part of existing shipment’

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Narrow boards, tight seams, no drama. That’s what the 2×3 gives you.

This is the PROSAUNAS Thermo-Aspen 2×3 S4SEE SHP bench board, 1.1″ thick by 2.56″ wide, milled with rounded edges (the S4SEE profile) and available in lengths up to 10 feet. It’s the narrower sibling to the wide 2×6 plank, which means more boards per bench, more visual rhythm, and a slightly lighter feel. Great for benches, backrests, and skirting.

Why Thermo-Aspen

Thermal modification is heat and steam, nothing else. No chemicals. The process changes the wood at a cellular level so it can’t hold moisture and won’t expand or contract, which means it won’t warp, cup, gap, or rot the way untreated wood does. The color runs all the way through, so a cut end keeps the same golden-brown tone and trim butts end-to-end without moving. The result feels and insulates about the same as Western Red Cedar, but holds up roughly twice as long. We specialize in these European thermo woods and think they beat cedar on both performance and value. Good clear cedar now runs about three times the price of thermo-aspen, and the cedar quality we’ve been seeing lately has slipped.

Fair warning: thermo-aspen is soft. It will scratch like any sauna wood does over time. Sands and refinishes just fine, but if you need bulletproof, look at a harder species. Also, if this goes outdoors, UV will fade the golden-brown color unless you seal it. Thermal modification is about moisture, not UV.

Specifications

  • SKU: PS-THERMO-ASPEN-2X3-S4SEE-SHP
  • Species: Thermally modified aspen
  • Profile: S4SEE SHP bench board
  • Thickness: 1.1″
  • Width: 2.56″
  • Available lengths: 1 ft, 10 ft
  • Price: $4.22 per linear foot
  • Made in: Estonia

Where it goes

Benches, backrests, and bench skirting are the sweet spot. Pairs naturally with thermo-aspen wall cladding in the STS4 or Grace profile for a fully matched interior. Also works as a backrest cap or lower bench fascia when you want more visual rhythm than the wide 2×6 gives you.

Shipping and samples

Sold by the linear foot. Shipping is a flat $795 to the continental US, or free when you order with a heater. We send free samples so you can feel the board and see the color before you commit. Text your name and address to (844) 565-1113 and we’ll get them out.

Call Ben² at (844) 565-1113 if you’d like to talk through the board count before you order.

Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Made in
Model2×3 S4SEE Bench
Size10 Linear Feet, Free Sample
Nominal Thickness2″
Nominal Width3″
Actual Thickness1.1″
Weight (per linear foot)1 lb
Attachments
Gallery

PLAN THE WHOLE SAUNA

The room and heater still have to work as one system.

Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.