Expert help that stays with you

Small details become expensive problems once installation begins. We ask the questions early, so a mismatched part, an overlooked requirement or an installation issue gets caught while it is 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 built saunas from the crate up and both run saunas at home. New customers and existing Sauna Marketplace sauna and heater owners can Open the 3D planner.

Specs
Made in
ModelGroove-S 1×3 Cladding
Size10 Linear Feet, 5 Linear Feet, Free Sample
Nominal Thickness1″
Nominal Width3″
Actual Thickness.59″
Wall Coverage1.85″
Weight (per linear foot)1 lb
Attachments
Gallery

PROSAUNAS Aspen Groove-S 1X3 T&G Wall Cladding – Sauna Wood

Narrow boards, crisp shadow lines, a lot of personality in a small footprint. The Groove-S is a 1×3 tongue-and-groove in natural aspen: 0.59 in thick, 2.4 in wide, 1.9 in of coverage per board, with precision-milled fluted slats that give a wall real visual texture. Aspen means pale, cool, resin-free. This profile means the room looks like a decision was made, not just a box lined with boards. Sold by the linear foot in 1, 5, and 10 ft lengths.

Build Your Quote:

$5.87 per linear footFree samples available

Get a free sample

Free sample · Free shipping · No payment needed

One per wood. Ships within the continental US (lower 48 and DC).

Shipping Unloading Notice
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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What ProSaunas owners say

Public reviews and notes owners sent our team, word for word. Names are shortened to a first name and last initial, or to initials.

“Excellent response times and customer service.”

Nathan L. · Sauna LED Light Strip owner

“Great communication and service! Really happy with my experience.”

Sam S. · ProSaunas All-Glass Sauna Door owner

“I received our sauna wood order last week and love the product!”

John V. · ProSaunas Thermo-Aspen wall cladding owner

“Product arrived promptly and in good condition. Everything is of good quality and should provide long service.”

William T. · Nova 6 Sauna Tent owner

“Sauna marketplace is a great website to purchase a sauna. Good customer service and quick responses from the team. Really enjoyed working with Ben.”

Ryan S. · SaunaLife G2 Small owner

“Great products , service and very communicative”

Colby W. · HUUM HIVE owner

Three inches wide, and it still manages to have more presence than most 4-inch profiles.

The ProSaunas Aspen Groove-S 1×3 is a narrow tongue-and-groove cladding with a shadow-line reveal that punches above its width. At 0.59 in thick (0.59″) and 2.4 in wide with 1.9 in of coverage, the Groove-S mills a crisp, angular channel between each board. The result on a full wall is a finely fluted surface: tight horizontal lines, a lot of depth, and a look that works equally well in a Japanese-influenced minimal room or a clean Nordic box. Milled in Estonia. Available in 1, 5, and 10 ft lengths, sold by the linear foot.

Why Aspen

Aspen gives you the palest possible tone, which is exactly right for a narrow-slat profile: the shadow lines read clearly against a light background. No resin, no splinters, cool to the touch at temperature. The honest trade-off with natural (non-thermally-modified) aspen is that it moves a bit more through the heat-and-cool cycle than thermo-aspen, which can mean the groove gaps open very slightly over years of use. It sands and refinishes easily if you ever want to refresh the surface. If you run a very hot room very frequently and want minimal movement, look at our thermo-aspen Groove-S.

Specifications

  • SKU: PS-ASPEN-GROOVE-S-1X3-TG
  • Species: Natural Aspen
  • Profile: Groove-S 1×3 tongue-and-groove, narrow shadow groove
  • Thickness: 0.59″
  • Width: 2.36″
  • Coverage: 1.85″ per board
  • Available lengths: 1, 5, 10 ft
  • Price: $5.87 per linear foot
  • Milled in Estonia

Where it goes

Walls and ceilings wherever you want a deliberately designed surface rather than a plain lined wall. Particularly strong on a ceiling, a back wall behind the bench, or any accent plane. Mixes well with a simpler STS4 aspen profile on adjacent walls if you want to break up the room visually. Pair with aspen S4SEE bench boards to keep the palette cohesive.

Shipping and samples

Sold by the linear foot. Flat $795 to the continental US, or free with a heater order. Free samples available: text your name and address to (844) 565-1113.

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

Planning guides: Choosing sauna woodSauna vapor barrier guide

Expert help that stays with you

Small details become expensive problems once installation begins. We ask the questions early, so a mismatched part, an overlooked requirement or an installation issue gets caught while it is 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 built saunas from the crate up and both run saunas at home. New customers and existing Sauna Marketplace sauna and heater owners can Open the 3D planner.

Specs
Made in
ModelGroove-S 1×3 Cladding
Size10 Linear Feet, 5 Linear Feet, Free Sample
Nominal Thickness1″
Nominal Width3″
Actual Thickness.59″
Wall Coverage1.85″
Weight (per linear foot)1 lb
Attachments
Gallery