Thermowood Redwood

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Available Grades:-
Sawfalling excluding 6ths

International Timber sources this material from Finland. It is available with PEFC certification. Thermowood is produced by heat treating selected Scandinavian Pine (Pinus sylvestris) which changes the properties of the timber and turns a non-durable timber into a product with class 2 durability (BN EN 350). This thermal process enhances the chemical and physical properties of the timber providing many benefits which include greater stability, no toxic chemicals or additives, colour darkens to an attractive deep brown, and timber can be cut or trimmed without the need to treat the cut ends. Thermowood will weather over a period of time to a silver grey appearance in areas with low air pollution. Discolouration may occur in some situations.

BOTANICAL NAMEPinus sylvestris
PHYSICAL/STRUCTURAL PROPERTIES Non-structural, small sound knots
TYPICAL APPLICATIONS Cladding, Decking, Saunas
ORIGIN Finland
DURABILITY Class 2 - Durable
STORAGE ADVICE Undercover always
STABILITY Stable - tangential movement 2 - 3mm
SUPPLIED FINISH Rough Sawn or machined to profile
WORKING QUALITIES Care should be taken with storage and machining as product can be brittle, follow Thermowood handbook guidelines
FIRE TREATMENT Thermowood Redwood can be fire treated, but due to its brittle nature, a 15% wastage factor on end splitting should be calculated
COATING Due to stability paint manufacturers are happy to provide 3 year - 10 year warranties subject to conditions
LENGTH 3m - 5.4m
Thermowood Redwood
ProductCodeStockedEnvironmental Credentials
Sawn Range PEFC
25 x 100mmT0004944YPEFC
25 x 125mmT0004212YPEFC
25 x 150mmS0003754YPEFC
32 x 125mmT0004945YPEFC
38 x 150mmT0004749YPEFC
50 x 100mmT0005108YPEFC
50 x 150mmT0004952YPEFC
50 x 200mmT0004953YPEFC
75 x 150mmT0004659YPEFC
Machined Range
25 x 125mm - IT19 M2 PatternT0004946YPEFC
25 x 125mm - IT 191 Shiplap PatternT0004984YPEFC
25 x 150mm - IT19 M2 PatternT0004772YPEFC
25 x 150mm - IT191 Shiplap PatternT0003806YPEFC