SUMI 炭
Premium Japanese cedar wood
What is Yakisugi SUMI ?
Crafted from sustainably grown cedar wood in Japan, the SUMI range exemplifies the finest in traditional craftsmanship and modern innovation. Each board is meticulously charred at temperatures exceeding 1700°C, with all four sides treated to ensure exceptional durability, resistance, and enhanced natural beauty.
Yakusugi boasts an impressive life expectancy of over 90 years, with proper maintenance extending its longevity beyond 120 years. Perfectly suited for both interior and exterior applications, this premium material combines timeless aesthetics with unmatched functionality, making it an ideal choice for contemporary designs that value sustainability and enduring quality.
SUMI 炭

SUMI 炭

PRODUCT SPECIFICATION
Size: 10mm x 135mm x 1970mm
10mm x 135mm x 2940mm
10mm x 135mm x 3940mm
Size:18mm x 165mm x 1970mm
18mm x 165mm x 2940mm
18mm x 165mm x 3940mm
3X Polyurethane
Allows for up to 20 tight or 10 dead knots per 2M board length with an unlimited combination of heartwood and sapwood, pith allowance.
Checks are allowed to 1/16 as long as plank stability, weather resistance and cosmetics are not adversely affected.
Not allowed Rot, Crack, Worm, Bug Holes, Wane, Hit & Miss and Blue stain Our products have repaired hole-knots, dead-knots crack-live knots by hotmelt, but there may be slight dents and cracks.
Twist, round and bent that do not interfere with the fixing of the profile board is allowed.
Finish products KD 14% (+/-4%)
Charred
Interior - Uchi
Size: 10mm x 135mm x 1970mm
10mm x 135mm x 2940mm
10mm x 135mm x 2940mm
Exterior - Soto
Size: 18mm x 135mm x 1970mm
18mm x 135mm x 2940mm
18mm x 135mm x 3940mm
Coating
3X Polyurethane
Finished
Charred
Grade
Allows for up to 20 tight or 10 dead knots per 2M board length with an unlimited combination of heartwood and sapwood, pith allowance.
Checks are allowed to 1/16 as long as plank stability, weather resistance and cosmetics are not adversely affected.
Not allowed Rot, Crack, Worm, Bug Holes, Wane, Hit & Miss and Blue stain Our products have repaired hole-knots, dead-knots crack-live knots by hotmelt, but there may be slight dents and cracks.
Twist, round and bent that do not interfere with the fixing of the profile board is allowed.
Moisture
Finish products KD 14% (+/-4%)
Realisations Made With SUMI

Project Crans Montana, Alpes, Switzerland
Contemporary Interior Enriched By Yakisugi Panels

Project Tokyo – Japan
Modern Entryway Enhanced With Yakisugi

Project In Whistler Blackcomb – Canada
Elegant Yakisugi Siding

Project In Kyoto, Japan
Charred Yakisugi façade paired with vibrant landscaping for a natural

Project In Tokyo, Japan
Modern architecture elevated with timeless Yakisugi cladding amidst serene natural surroundings

Project In Montreal – Canada
Close-up of Yakisugi Wood Showcasing Its Natural Charred Texture And Timeless Craftsmanship