Lunawood ThermoWood: 
Decking, Cladding & Profiles in Ontario

Composite Deck Shop is an exclusive Lunawood dealer in Ontario and Quebec.
Patio Lunawood deck with chairs
Title

What is Lunawood ThermoWood?

Lunawood ThermoWood is thermally modified wood whose properties are improved throughout the board, not only on the surface. Official Lunawood materials state that thermal modification reduces moisture-related movement, improves dimensional stability, and increases resistance to decay without chemical preservatives. 

This makes Lunawood a strong fit for exterior applications where real-wood appearance matters but better stability than untreated softwood is needed.

Made in Finland from Nordic spruce and pine

Thermally modified using only heat and steam

Suitable for above-ground exterior applications

Naturally weathers to a silver-grey tone outdoors

Available as PEFC or FSC certified; Nordic Swan Ecolabel certified

Source: Lunawood Playbook

Why choose Lunawood for decking and cladding?

If you want the look and feel of real wood, Lunawood offers a cleaner, more architectural option than many standard softwoods. Selected decking profiles are designed for hidden-fixing systems, and the material can either be left untreated to weather naturally or surface treated to help preserve its original brown tone. 

 

Lunawood also offers certified sourcing options and widely used exterior profiles for both decking and cladding applications.

Source: Lunawood Playbook

Maintenance and natural weathering

Lunawood decking requires very little maintenance. 

 

Regular cleaning with water and a soft brush is the basic routine. If left untreated, the wood gradually turns grey because of UV exposure and weathering;

 

Lunawood says this natural greying does not affect the wood’s stability or resistance to decay. 

 

To help retain the original brown tone, use a suitable pigmented UV-protective treatment following Lunawood's official Decking Maintenance and Care guide. 

Photos: NPP, Natasha Dawjee Laurent of Paper Cut Photography. Years 2019 and 2021. 
Source: The Natural Greying of Lunawood Thermowood

Technical note

Official Lunawood factsheets classify LunaThermo-D as Use Class 3 for above-ground exterior exposure. 
Lunawood also states that it is not recommended for direct ground contact, and its factsheet notes a BRE-endorsed expected service life of 30 years when used as cladding and decking.

Lunawood Profiles We Stock

Use the table below to compare profile names, nominal sizes, typical lengths and current pricing at a glance.

Profile Name

Nominal Size

Available Lengths

Current Price

Profile

Luna SHP Profix 2 5/4 x 6 SAP

1″ x 5.5″

11′, 12′ ,14′, 15′, 16′, 18′

$4.29 / lnft

LUNA Trim

0.78″ x 5.6″

13′, 15′

$3.49 / lnft

Luna Pro (black)

0.78″ x 5.6″

16′, 18′

$5.69 / lnft

LUNA Triple

1.26″ x 5.5″

12′, 16′

$5.69 / lnft

Luna SHP Battens

1.65″ ” x 3.6″

17′

$4.99 / lnft

Shop Lunawood Decking

Lunawood decking is a strong fit for projects that need a natural wood surface, hidden-fixing compatible profiles, and a material that can be left untreated to grey naturally or surface treated to help preserve its original brown tone.

Lunawood 5/4x6 Brushed Decking (Luna SHP Profix 2)

Wooden decking boards in Thermowood decking, shown on a finished deck with Lunawood and Composite Deck Shop logos.
A single, smooth, brown Thermowood decking board with a tongue and groove edge, shown on a white background.
$46.33
Length
Quantity

Shop Lunawood Siding & Cladding

Lunawood cladding includes hidden-nailing, brushed and 3D façade profiles such as Trim, Pro and Triple families.

See all Lunawood Siding / Cladding

See samples in person / Get expert help

See Lunawood samples in person, compare profiles with our team, and request current availability by location.

Vaughan Decking Store

Google Maps

(416) 623 7158

71 Buttermill Avenue,
Vaughan, Ontario
L4K 3X2, Canada

showroom

warehouse

same-day pick up

Peterborough Decking Store

Google Maps

(705) 750 7770

1973 Lansdowne St W,
Peterborough, ON
K9J 6X4, Canada

showroom

storage yard

same-day pick up

London Decking Store

Google Maps

(226) 998 2057

28 Micro Ct Unit 4,
London, Ontario
N6E 2T5, Canada

showroom

warehouse

same-day pick up

Barrie Decking Store

Google Maps

(705) 770 09 45

47 Truman Road,
Barrie, Ontario
L4N 8Y7, Canada

showroom

storage yard

same-day pick up

Get a quote

Lunawood Thermowood FAQ

What is Lunawood ThermoWood?

Lunawood ThermoWood is real wood from Nordic spruce or pine that is thermally modified using only heat and steam. The process improves dimensional stability and durability without chemical preservatives.

Is Lunawood suitable for outdoor projects in Ontario and Quebec?

Lunawood’s official materials describe ThermoWood as suitable for all climates, and its factsheet lists LunaThermo-D as an above-ground exterior material for weather-exposed applications such as decking and cladding. (source)

Does Lunawood need oil or stain?

Not necessarily. If you accept natural greying, Lunawood can be left untreated outdoors. If you want to help preserve the original brown tone, Lunawood recommends a suitable pigmented surface treatment according to its maintenance guidance.

Will Lunawood turn grey over time?

Yes. Without surface treatment, Lunawood gradually turns grey because of UV exposure and weathering. According to Lunawood, this natural greying does not affect the wood’s stability or resistance to decay.

Can Lunawood be installed in direct ground contact?

No. Lunawood’s factsheet says LunaThermo-D is suitable for above-ground exterior applications and is not recommended for direct contact with the ground.

Lunawood Thermowood Resources

Here are some useful resources on Lunawood Thermowood

Lunawood Maintenance Guide (980 Kb)

Lunawood Thermowood overview

Lunawood Decking - official overview on decking and outdoor use

Thermowood Siding

Lunawood Projects

Need help choosing a board or confirming availability?

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Thermal Modification Process - Lunawood