Gendai® Unoiled

Exterior, Interior

Our Gendai® yakisugi “shou sugi ban” products receive a single brushing to remove some of the delicate soot layer–leaving a smooth, consistent, and dark surface. Unoiled Gendai is suitable for exterior applications. This is a great option for owners who appreciate the natural beauty of wood and siding with a unique, ever-changing patina. Leaving the charred wood unoiled allows it to naturally weather in response to the local climate. The yakisugi heat treatment process hardens and protects the siding against pests, moisture, and fire. Available burned on both faces (S4S) for fencing or louver applications.
Lineal Foot price starting at: $4.75
Square Foot price starting at: $10.70
For premium clear grade pricing, please contact Sales

For premium clear grade and clear vertical grain pricing, please contact Sales

SKUs Toggle icon
Profile Select Grade Premium Clear Grade
1 x 6 x 12 Shiplap GA2000 GD2000
1 x 6 x 12 S3S Square Edge GB2000
1 x 6 x 12 S4S Square Edge GC2000
1 x 8 x 12 Shiplap GE2000
1 x 8 x 12 S3S Square Edge GF2000
1 x 2 x 12 S3S Square Edge GG2000
5/4 x 2-1/2 x 12 S3S Square Edge GH2000
5/4 x 2-1/2 x 12 S4S Square Edge GI2000
5/4 x 5 x 12 S3S Square Edge GJ2000
5/4 x 5 x 12 S4S Square Edge GK2000
5/4 x 8 x 12 S3S Square Edge GL2000
Considerations Toggle icon
  • Our most dramatic patina product.
  • Fades and changes color over time.
  • Can be coated with an oil finish at installation or any time in future.
  • Every project will weather differently due to unique microclimates.
  • Soot residue, caking, and blemishing (especially along board edges) are all common with this product.
  • Traditionally used on interior ceilings as an air purifier.
Patina scale Toggle icon

Patina Scale: 10

The Patina Scale has been developed by Nakamoto Forestry to approximate how its products will weather over time—from 0 (“less patina/more color longevity”) to 10 (“less color longevity/more patina”). However, every product weathers at a different rate due to local conditions, and the Patina Scale is intended as general guidance only, and is solely for informational purposes. Nakamoto Forestry makes no guarantees, representations, or warranties, express or implied, regarding the appearance or color longevity of its products after installation.
Dimensions Toggle icon
*Dimensional shrinkage after manufacture is possible due to being a solid-sawn wood product.

1 x 6 x 12 Shiplap

Profile graphic for 1x6x12 Shiplap

1 x 6 x 12 S3S & S4S Square Edge

Graphic of 1x6x12 Square Edge

1 x 8 x 12 Shiplap

Graphic of 1x8x12 Shiplap Profile

1 x 8 x 12 S3S Square Edge

1x8x12 SquareEdge

1 x 2 x 12 S3S Square Edge

Graphic profile for 1x2x12 Square Edge

5/4 x 2-1/2 x 12 S3S & S4S Square Edge

Graphic profile for 5/4x2-1/2x12 - Square Edge

5/4 x 5 x 12 S3S & S4S Square Edge

Graphic profile for 5/4x5x12 SquareEdge

5/4 x 8 x 12 S3S Square Edge

Graphic profile for 5/4x8x12 Square Edge
Finish details Toggle icon

Unoiled

Yakisugi heat treatment makes a finish coating unnecessary. Unoiled siding can always be oiled in the future to add color or protection. Delivered ready to install.

Prefinish Options

n/a

Prefinish Color

n/a

Pressure-Treated Fire Retardant

Not Available

Field Cuts

Coat all field cuts and rips with touch up oil

Installation details Toggle icon

For installation instructions

Installation manual available upon request, please contact us for assistance.

Overage

Please add a healthy overage ranging from 15–25%, as shipping additional material can be expensive.

Fastening (Exterior)

Two ring or screw-shank headed face nails or screws per furring strip within 1” of each edge.

Substrate (Exterior)

Rigid furring maximum 16” on-center.

Fastening (Interior)

Tube adhesive and pin nails

Substrate (Interior)

Per design specifications

Installation Layout

Vertical or horizontal, all profiles.

Moisture Content

Air dried then kiln dried to 9-13% MC, but may fluctuate during transport or warehousing. Please acclimate on site for two weeks prior to installation.

Species Toggle icon
Cryptomeria japonica, a monotypic genus in the cedar family native to Japan. The Japanese name is "sugi", as in yakisugi and "shou sugi ban". In English it is colloquially called Japanese cedar.
Certifications Toggle icon

Fire Resistance

ASTM E-84 Class B without fire retardant, Class A with fire retardant (SKU# XA2000)

Sustainability

PEFC chain of custody certified PEFC/29-44-03

CFP declaration: Gendai®

Environmental Product Declaration (EPD): JR-BC-20002E-A

Project Highlights

OUR tutorials

Suyaki

DIY: Blemish Touch-Up

Our Yakisugi Shou Sugi Ban siding ages beautifully with minimal upkeep. It naturally develops a rich patina or can be re-oiled anytime to restore its original vibrancy. Suyaki stays black for decades, with re-oiling extending its deep color even longer.

Accessories

Our Yakisugi accessories ensure a seamless installation and lasting durability. Available as a service to customers, they require a lumber purchase but are sold separately.

Frequently Asked Questions

Concerned About Tariffs?

Our lumber products are all of Japanese origin and are unaffected by Canadian import duties from the US. All North American orders ship from inventory stored at our US facility within two weeks. Any tariff costs are included in our published pricing and you will not be charged additional taxes (aside from your GST or HST).

Concerned About Tariffs?

All North American orders ship from inventory stored at our US facility within two weeks. Any tariff costs are included in our published pricing and you will not be charged additional taxes (aside from your local and state taxes).