PROSAUNAS Thermo-Aspen Sauna Wood, 1x2 (12mm x 42mm) UK Molding, Door Trim

Thermo-Aspen 1x2 Door Trim

Name: Thermo-Aspen 1x2 Door Trim
Brand: Prosaunas
SKU: WOOD682-1
Price: 3.71 USD
Availability: InStock

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A Polished Finish for Your Sauna

The Prosaunas Thermo-Aspen Door Trim brings a clean, refined edge to your sauna build. Sized at 12 × 42 mm and cut to 292 mm, this trim piece is designed to complete doorways with a tidy, professional look. Its warm golden-brown tone adds a naturally attractive character that complements any sauna interior.

Why Thermo-Aspen?

Thermally modified Aspen is crafted through an organic process using heat, steam, and pressure — no chemicals involved. The result is wood that won't secrete resin, splinter, or overheat, making it a trusted choice for sauna environments. It offers improved dimensional stability, water resistance, and superior resistance to decay, pests, and harmful fungi compared to untreated wood.

Sourced and Selected with Care

Prosaunas draws on more than 55 years of experience crafting premium sauna rooms across North America. Every piece of wood is carefully selected from Northern Europe and Canada, held to stringent quality and consistency standards — so your trim arrives exactly as expected, ready to finish your project beautifully.

PRODUCT SHEET

PROSAUNAS Thermo-Aspen Sauna Wood Interior

Thermo-Aspen 1x2 Door Trim

Length Per Piece: 1' 1' 8'

Product variants

$3.71 USD

Freight added at checkout

Installation Required

You will cut, fit, and fasten the trim pieces to finish the door opening during your sauna build. Standard finish carpentry tools and fasteners appropriate for sauna environments are needed.

Description

Features

What's Included?

Size & Weight

Electrical Specs

Shipping & Delivery

Warranty

Documents

Description

Thermally modified aspen brings a stable, dimensionally consistent surface to door trim work — the heat-treatment process reduces the wood's moisture content and responsiveness to humidity swings that are unavoidable inside a working sauna.

Cut to a 1×2 profile (12 mm × 42 mm), this trim is sized to finish sauna door openings cleanly without adding bulk. Available in 1-foot and 8-foot lengths so you can match the piece to your project and minimize waste.

Key Features

Thermally modified aspen — heat treatment stabilizes the wood against the humidity cycling inside a sauna, reducing expansion and contraction at the door frame over time.
1×2 profile (12 mm × 42 mm) — a slender cross-section that covers the rough opening edge without encroaching on the door swing or the interior bench layout.
Aspen species — naturally low in resin, so the trim won't release sticky sap or interfere with the clean, light interior aesthetic common to Nordic-style sauna builds.

1'

292 mm length — useful for filling short sections, corners, or custom cut-ins where an 8-foot piece would generate excessive offcuts.

8'

Full-length board suited to continuous runs along a standard door opening, reducing the number of joints and keeping the finished trim line uninterrupted.

Size & Weight

Dimensions

12 × 42 mm

Product Width

1.65" (42mm)

Shipping Length

Up to 8'

SHIPPING & DELIVERY

Sauna wood is not free shipping. Length, piece count, profile, and weight set the rate. These are the Bathing Brands contiguous-US flat rates. Canada is the same table plus $100. Alaska, Hawaii, and remote addresses are quoted.

Checkout charges the 8' piece-count table (contiguous US). Canada is the same table plus $100. Boards over 8' use that same checkout rate; dock or liftgate extras are a follow-up. Alaska, Hawaii, and remote addresses are quoted.

BOARDS UP TO 8'

Under 40 pieces generally ships FedEx Ground in cardboard. Over 40 pieces generally ships LTL with a liftgate on a wood pallet. The longest board in the order sets the rate tier.

Under 19 boards — $195
20–39 boards — $395
40–99 boards — $495
100–299 boards — $695
300–499 boards — $895
500–799 boards — $995
800–999 boards — $1,295

BOARDS OVER 8' UP TO 10'

These lengths ship LTL on a wood pallet. They do not qualify for a liftgate — you need a dock, machinery, or hand offload on site. Carriers allow about one hour to unload before extra fees.

Under 19 boards — $295
20–39 boards — $495
40–99 boards — $595
100–299 boards — $795
300–499 boards — $995
500–799 boards — $1,095
800–999 boards — $1,395

HOW THIS SHIPS

We pack for a safe arrival at the lowest rate that fits the order.
Boards over 8' carry a surcharge because long crates cost more to move than a standard skid.
Heaters, doors, or accessories on the same order can offset some of that freight.

Description

Features

Key Features

Thermally modified aspen — heat treatment stabilizes the wood against the humidity cycling inside a sauna, reducing expansion and contraction at the door frame over time.
1×2 profile (12 mm × 42 mm) — a slender cross-section that covers the rough opening edge without encroaching on the door swing or the interior bench layout.
Aspen species — naturally low in resin, so the trim won't release sticky sap or interfere with the clean, light interior aesthetic common to Nordic-style sauna builds.

1'

292 mm length — useful for filling short sections, corners, or custom cut-ins where an 8-foot piece would generate excessive offcuts.

8'

Full-length board suited to continuous runs along a standard door opening, reducing the number of joints and keeping the finished trim line uninterrupted.

What's Included?

Size & Weight

Dimensions

12 × 42 mm

Product Width

1.65" (42mm)

Shipping Length

Up to 8'

Electrical Specs

Shipping & Delivery

SHIPPING & DELIVERY

BOARDS UP TO 8'

Under 40 pieces generally ships FedEx Ground in cardboard. Over 40 pieces generally ships LTL with a liftgate on a wood pallet. The longest board in the order sets the rate tier.

Under 19 boards — $195
20–39 boards — $395
40–99 boards — $495
100–299 boards — $695
300–499 boards — $895
500–799 boards — $995
800–999 boards — $1,295

BOARDS OVER 8' UP TO 10'

These lengths ship LTL on a wood pallet. They do not qualify for a liftgate — you need a dock, machinery, or hand offload on site. Carriers allow about one hour to unload before extra fees.

Under 19 boards — $295
20–39 boards — $495
40–99 boards — $595
100–299 boards — $795
300–499 boards — $995
500–799 boards — $1,095
800–999 boards — $1,395

HOW THIS SHIPS

We pack for a safe arrival at the lowest rate that fits the order.
Boards over 8' carry a surcharge because long crates cost more to move than a standard skid.
Heaters, doors, or accessories on the same order can offset some of that freight.

Warranty

Documents

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Design

DIMENSIONS

Model: Thermo-Aspen 1x2 Door Trim
Nominal size: 1x2 (12mm x 42mm)
Length per piece: 1', 8'
Weight: 1–8 lb (0.45–3.63 kg)

MATERIALS

Species: Aspen
Finish: Thermally Modified
Profile: UK (flat casing)
Thickness: 0.47" (12mm)

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.

DELIVERY & INSTALL

Delivery

Assembly

Install

Delivery

Assembly

Install

Let customers speak for us

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DETOXIFICATION

detoxification

Sweat is the safest and most natural way to expel the body's toxins. Practiced for thousands of years, sauna is still one of the most efficient ways to sweat on earth today.

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MUSCLE RECOVERY

Extensive research has shown that exposure to cold and heat can effectively reduce inflammation, accelerating the recovery process and providing relief from pain.

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MENTAL HEALTH

Through breathing techniques you can learn to calm your nervous system in intense heat and cold. Breathing is the key to a racing heart and a racing mind.

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IMPROVED SLEEP

Whoop™ posted a study that showed a 2.5x increase in sleep consistency on days when people practice cold exposure. Learn how heat & cold to create better habits and deeper sleep.

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HEART HEALTH