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Thermo-Radiata Pine 1x1 Trim

Name: Thermo-Radiata Pine 1x1 Trim
Brand: Prosaunas
SKU: WOOD688-1
Price: 3.5 USD
Availability: InStock

Length Per Piece: 1' 1' 2' 3' 4' 5' 6' 7' 8'

Product variants

$3.50 USD

Lumber curbside freight is quoted after checkout. Shipping

Quantity

Description

Features

What's Included?

Size & Weight

Electrical Specs

Shipping & Delivery

Warranty

Documents

Description

This thermo-radiata pine 1x1 trim is milled smooth on all four sides with eased edges (S4SEE), giving you clean, splinter-free lines wherever trim work is needed in your sauna build. The 21mm × 21mm profile is consistent across every length, so pieces from different packs align without adjustment.

Thermo-radiata pine has been heat-treated to reduce its moisture content and improve dimensional stability — an important quality in the humidity cycles of a sauna environment, where untreated softwoods can cup, twist, or check over time. Available in eight lengths from 1 ft to 8 ft, you can select exactly what your project requires and minimize off-cuts.

Key Features

21mm × 21mm (1x1) cross-section stays consistent across all lengths, making it straightforward to plan corner details, reveals, and accent strips without re-measuring.
S4SEE milling — smooth on all four sides with eased edges — means no additional sanding or planing is needed before installation.
Heat-treated thermo-radiata pine resists the dimensional movement that humidity and temperature swings cause in untreated wood, helping trim joints stay tight over time.
Eight lengths available (1 ft through 8 ft) so you can match your cuts to your layout and reduce waste.

1'

292mm length — useful for short accent pieces, inside corners, or filler sections.

2'

Approximately 610mm — suitable for small panel borders and short runs between features.

3'

Approximately 914mm — a practical length for bench fascia trim and mid-height details.

4'

Approximately 1219mm — covers standard bench depths and half-wall trim runs in a single piece.

5'

Approximately 1524mm — bridges longer spans without a joint, useful along door surrounds and wider panels.

6'

Approximately 1829mm — a common ceiling-height length, reducing seams on vertical trim runs.

7'

Approximately 2134mm — suits taller wall sections and extended horizontal trim lines.

8'

Approximately 2438mm — the longest option, ideal for full-height or full-width trim runs that benefit from a single continuous piece.

Size & Weight

Dimensions

21 × 21 mm

Product Width

.83" (21mm)

Shipping Length

Up to 8'

SHIPPING & DELIVERY

LUMBER CURBSIDE FREIGHT — QUOTED

Lumber ships curbside freight. The quote is based on the amount of lumber ordered. Our team will provide a freight quote after checkout.

This is the only shipping option when the order includes lumber, including an order that also has a heater. Checkout does not offer another shipping choice on that order.

CURBSIDE

The driver brings the lumber to ground level. Boards over 8 feet ship on a pallet and may need a dock or hand offload. That is part of the quote. We confirm access before it ships.

Description

Features

Key Features

21mm × 21mm (1x1) cross-section stays consistent across all lengths, making it straightforward to plan corner details, reveals, and accent strips without re-measuring.
S4SEE milling — smooth on all four sides with eased edges — means no additional sanding or planing is needed before installation.
Heat-treated thermo-radiata pine resists the dimensional movement that humidity and temperature swings cause in untreated wood, helping trim joints stay tight over time.
Eight lengths available (1 ft through 8 ft) so you can match your cuts to your layout and reduce waste.

1'

292mm length — useful for short accent pieces, inside corners, or filler sections.

2'

Approximately 610mm — suitable for small panel borders and short runs between features.

3'

Approximately 914mm — a practical length for bench fascia trim and mid-height details.

4'

Approximately 1219mm — covers standard bench depths and half-wall trim runs in a single piece.

5'

Approximately 1524mm — bridges longer spans without a joint, useful along door surrounds and wider panels.

6'

Approximately 1829mm — a common ceiling-height length, reducing seams on vertical trim runs.

7'

Approximately 2134mm — suits taller wall sections and extended horizontal trim lines.

8'

Approximately 2438mm — the longest option, ideal for full-height or full-width trim runs that benefit from a single continuous piece.

What's Included?

Size & Weight

Dimensions

21 × 21 mm

Product Width

.83" (21mm)

Shipping Length

Up to 8'

Electrical Specs

Shipping & Delivery

SHIPPING & DELIVERY

LUMBER CURBSIDE FREIGHT — QUOTED

Lumber ships curbside freight. The quote is based on the amount of lumber ordered. Our team will provide a freight quote after checkout.

This is the only shipping option when the order includes lumber, including an order that also has a heater. Checkout does not offer another shipping choice on that order.

CURBSIDE

The driver brings the lumber to ground level. Boards over 8 feet ship on a pallet and may need a dock or hand offload. That is part of the quote. We confirm access before it ships.

Warranty

Documents

Brand Spotlight

Prosaunas

Built by Sauna Artisans

From Western Red Cedar to Himalayan salt, every material is chosen by our team of sauna artisans — because "Perfection in Sauna" is the standard we build to, not just a tagline.

Prosaunas

Everything Your Sauna Needs, One Source

Wood, doors, windows, lighting, salt, care products — Prosaunas outfits every detail of your build, backed by a nationwide dealer network.

Prosaunas

Real Experts, Real Answers

Questions about materials or installation? Our Wheeling, Illinois-based team is here Monday–Friday, and every build is backed by our workmanship warranty.

Let customers speak for us

from 59 reviews

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Everything as advertised. Easy set-up and a great addition to our sauna. I had a few questions and received prompt replies and great customer service. I would order again.

Tom - Northern Wisconsin

08/17/2026

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Edward Plummer

08/12/2026

Absolutely stellar interaction with Mitch

Absolutely stellar interaction with Mitch. Cannot thank them enough. Would do business again without a thought in the matter!

Grant Paquin

07/10/2026

Sauna stove and glass door

Mitch and the team were incredibly thoughtful and patient while I worked on my order. Shipping was clear and conciencias and everything arrived as it should

Grant Paquin

07/02/2026

Awesome folks!

Communication and attention to customer service was amazing!!!

Kiley Hill

05/01/2026

Fantastic

Love our large sauna! Actually put it together by myself.....was not recommended but can be done! Exactly as advertised! Great service!

John Riekhof

03/02/2026

Great Cold Plunge Tub

This is a great cedar-sided cold plunge tub. I spent a considerable amount of time researching cold plunge tubs and wanted one with real ceder wood to fit my sauna room. It also has a durable heat pump, compared to lower-quality chillers. I have had it a few months and no issues. Also, in the pics below, I have the chiller, which is about a 2' x 2' cube plumbed to a different space for a clean sauna room look. I would highly recommend this tub and the price is less than some on the market.

Tom L

01/20/2026

These guys are AMAZING!

These guys are AMAZING! I’d leave 10 stars if I could. We purchased a barrel sauna and cold plunge from them in fall 2025. They were absolutely terrific to work with! Our contractor and electrician had many (many) questions, all were promptly and kindly answered. They even customized our order by selling an extra long cord so we could install control panel inside for extra protection in MN winters. Shipping and delivery was a breeze. We are using our sauna daily and love it! Zero hesitation recommending this company! Thank you Johnny and Mitch for all your help!!!

Caley Philipps

12/12/2025

Caley Philipps

12/09/2025

What a wonderful sauna!

Researched many saunas for many months. Finally landed on this one. Only complaints i have are the instructions weren't very well written and the trim on the outside was very difficult to put together. We use it almost daily.

Ashley Slocum

11/24/2025

Great service, great sauna

Super stoked about the new sauna. I ended up with a beautiful 2-3 person cedar sauna with a huum heater. It’s perfect. These guys were helpful in choosing the right size, type, etc.
very glad I used the cold plunge guys.

Dr. Stephen Sherman

10/25/2025

Great service!

Received order quickly. Great service

Chad Anderson

10/10/2025

Cold Plunge Gurus

Had a great experience working with the Cold Plunge Guys and would highly recommend their products!

Jonathan Zook

10/10/2025

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Krystle HUMPHREYS

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Awesome!

I ordered my heater on a Thursday and it arrived the following Tuesday.
The price was by far the lowest I was able to find. I am super impressed with this company.

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07/03/2025