Western Hemlock is one of North America’s most respected sauna timbers, valued for its consistent grain, pale creamy tone, and natural resistance to the thermal extremes of high-heat environments. Its low resin content means it heats cleanly without releasing volatile compounds, keeping the sauna atmosphere pure and breathable. The wood’s fine, uniform texture gives finished interiors a calm, spa-like quality that pairs well with both minimalist and rustic design sensibilities.

Hemlock is exceptionally stable under repeated heat and humidity cycling, making it a reliable long-term investment in sauna construction. It holds its shape, resists checking, and maintains its light, neutral color without the discoloration that affects denser or more resinous species. For builders and designers who demand consistent performance across large surface areas — benches, walls, and ceilings alike — Hemlock delivers.

Species Overview

Janka Hardness: 500 lbf | Grain: Straight, Fine
Avg Dried Weight: 29 lbs/ft³ | Odor: Faint, Clean
Color: Pale Cream to Light Brown | Resin Content: Low

Western Hemlock is one of the most structurally consistent conifers available in North America, harvested from the old-growth and second-growth forests of the Pacific Northwest and British Columbia. It is noted among timber professionals for its exceptionally uniform grain, lack of pitch pockets, and reliable dimensional stability — qualities that make it as practical as it is beautiful.

The wood’s pale, creamy tone and fine texture give it a clean, neutral aesthetic that suits a wide range of design styles, from Scandinavian minimalism to contemporary spa interiors. It finishes well with oils and hardwax products and holds its color reliably over time, resisting the yellowing or graying that affects less stable species.

In sauna and high-heat environments, Hemlock performs with distinction. Its low resin content means it heats without off-gassing, and its surface remains comfortable against bare skin even at elevated temperatures. For large commercial wellness projects requiring consistent quality across extensive linear footage, Hemlock is a trusted and proven specification.

Available Materials

STS A – 1X4 | T&G Nickel Gap – Wall Profile
Hemlock’s pale cream tone and straight, consistent grain make it one of the most versatile wall panel species in our collection. The 1×4 nickel gap profile installs cleanly across large wall and ceiling surfaces, with the shadow-line reveal adding subtle depth to what is otherwise a beautifully restrained aesthetic.

• Nominal size: 1×4 | Actual size: 0.59″ x 3.54″ x 94.49″
• Face width: 3½» with ½» gap reveal | Profile: T&G / nickel gap
• Typical use: Walls and ceilings | Installation: Blind nail or clip

STS A – 1X4 DUAL | T&G Nickel Gap – Wall Profile
The dual-face Hemlock panel brings the species’ clean, neutral aesthetic to installations where both faces of the paneling are visible. Consistent grain and color across both surfaces ensure a polished result in open sauna designs and glass-walled wellness rooms.

• Nominal size: 1×4 | Actual size: 0.59″ x 3.54″ x 94.49″
• Face width: 3½» with ½» gap reveal | Profile: T&G / nickel gap
• Typical use: Walls, ceilings, partition walls | Installation: Blind nail or clip

S4S A – 2X4 (*) | Bench Profile
Hemlock’s uniform density and low resin content produce a bench board that is smooth, stable, and comfortable at elevated temperatures. The 2×4 S4S profile is widely used in commercial sauna installations for its consistent performance and clean appearance across high-use benching systems.

• Nominal size: 2×4 | Actual size: 1.10″ x 3.54″ x 94.49″
• Profile: S4S / smooth four sides
• Typical use: Benches and platforms | Installation: Face nail or screw

S4S A – 2X6 (*) | Bench Profile
The wider Hemlock bench board is the preferred specification for commercial sauna projects requiring broad, seamless seating surfaces. Its pale, consistent coloring and fine grain hold up beautifully over years of high-frequency use without significant discoloration or surface degradation.

• Nominal size: 2×6 | Actual size: 1.10″ x 4.72″ x 94.49″
• Profile: S4S / smooth four sides
• Typical use: Benches and platforms | Installation: Face nail or screw