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For exterior wood fencing and louver applications, our Gendai and Pika-Pika S4S profiles are heat-treated on both faces. They can also be machine-coated with your choice of exterior-grade oil finishes on both sides.
When using one of our S3S profile products in an installation where the back side would be exposed, the uncharred backs can be stained with any dark color to blend in with the burned faces.
For structural elements (e.g., fence rails, posts), standard framing lumber can be used to support visible cladding of sugi or yakisugi “shou sugi ban” plank products.
For exterior wood fencing and louver applications, our Gendai and Pika-Pika S4S profiles are heat-treated on both faces. They can also be machine-coated with your choice of exterior-grade oil finishes on both sides.
When using one of our S3S profile products in an installation where the back side would be exposed, the uncharred backs can be stained with any dark color to blend in with the burned faces.
For structural elements (e.g., fence rails, posts), standard framing lumber can be used to support visible cladding of sugi or yakisugi “shou sugi ban” plank products.
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Tung oil transforms the unbrushed charred surface of our Suyaki® yakisugi “shou sugi ban” into a leathery texture that slows soot layer erosion, extends wood durability, and creates an even black color. This combination is suitable for exterior installations. Yakisugi heat treatment hardens and protects the siding against pests, moisture, and fire. While tung oil slows the weathering process, the siding will still develop its own a unique patina in response to the local climate over time.
1 x 6 x 12 Shiplap ! Select Grade
1 x 6 x 12 S3S Square Edge ! Select Grade
1 x 8 x 12 Shiplap ! Select Grade
1 x 8 x 12 S3S Square Edge ! Select Grade
5/4 x 8 x 12 S3S Square Edge ! Select Grade
1 x 2 x 12 S3S Square Edge ! Premium Clear Grade
5/4 x 2 x 12 S3S Square Edge ! Premium Clear Grade
5/4 x 5 x 12 S3S Square Edge ! Premium Clear Grade
| Profile | Select Grade | Premium Clear Grade |
|---|---|---|
| 1 x 6 x 12 Shiplap | SA2411 | – |
| 1 x 6 x 12 S3S Square Edge | SB2411 | – |
| 1 x 8 x 12 Shiplap | SE2411 | – |
| 1 x 8 x 12 S3S Square Edge | SF2411 | – |
| 1 x 2 x 12 S3S Square Edge | – | SG2411 |
| 5/4 x 2-1/2 x 12 S3S Square Edge | – | SH2411 |
| 5/4 x 5 x 12 S3S Square Edge | – | SJ2411 |
| 5/4 x 8 x 12 S3S Square Edge | SL2411 | – |
Patina Scale: 1

1 x 6 x 12 Shiplap

1 x 6 x 12 S3S Square Edge

1 x 8 x 12 Shiplap

1 x 8 x 12 S3S Square Edge

1 x 2 x 12 S3S Square Edge

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

5/4 x 5 x 12 S3S Square Edge

5/4 x 8 x 12 S3S Square Edge

Our unique tung oil blend was formulated specifically for exterior Suyaki® applications. This oil stain penetrates and stabilizes the delicate soot layer, making it easier to handle during installation. This coating also includes a black pigment to even out the surface color. The siding’s leathery texture will naturally blemish and weather over time, and can easily be retouched as desired. Not suitable for high-traffic applications. Delivered ready to install.
Coated face only
Black
Coat all field cuts and rips with touch up oil
Installation manual available upon request, please contact us for assistance.
Please add a healthy overage ranging from 15–25%, as shipping additional material can be expensive.
Two ring or screw-shank headed face nails or screws per furring strip within 1” of each edge.
Rigid furring maximum 16” on-center.
Vertical or horizontal, all profiles.
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.
ASTM E2707 & CSFM 12-7A-1 WUI
ASTM E-84 Class B
PEFC chain of custody certified PEFC/29-44-03
Charred, unbrushed, and unoiled yakisugi “shou sugi ban” is as traditional as it gets. Unoiled Suyaki® provides a visual and cultural benchmark for our products. Used mostly for exterior applications, though it has also been used in Japan for interior ceilings as an air purifier. 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.
1 x 6 x 12 Shiplap ! Select Grade
1 x 6 x 12 S3S Square Edge ! Select Grade
1 x 8 x 12 Shiplap ! Select Grade
1 x 8 x 12 S3S Square Edge ! Select Grade
5/4 x 8 x 12 S3S Square Edge ! Select Grade
1 x 2 x 12 S3S Square Edge ! Premium Clear Grade
5/4 x 2 x 12 S3S Square Edge ! Premium Clear Grade
5/4 x 5 x 12 S3S Square Edge ! Premium Clear Grade
| Profile | Select Grade | Premium Clear Grade |
|---|---|---|
| 1 x 6 x 12 Shiplap | SA2000 | – |
| 1 x 6 x 12 S3S Square Edge | SB2000 | – |
| 1 x 8 x 12 Shiplap | SE2000 | – |
| 1 x 8 x 12 S3S Square Edge | SF2000 | – |
| 1 x 2 x 12 S3S Square Edge | – | SG2000 |
| 5/4 x 2-1/2 x 12 S3S Square Edge | – | SH2000 |
| 5/4 x 5 x 12 S3S Square Edge | – | SJ2000 |
| 5/4 x 8 x 12 S3S Square Edge | SL2000 | – |
Patina Scale: 2

1 x 6 x 12 Shiplap

1 x 6 x 12 S3S Square Edge

1 x 8 x 12 Shiplap

1 x 8 x 12 S3S Square Edge

1 x 2 x 12 S3S Square Edge

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

5/4 x 5 x 12 S3S Square Edge

5/4 x 8 x 12 S3S Square Edge

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.
Unoiled
Black
Coat all field cuts and rips with black tung oil touch up oil
Installation manual available upon request, please contact us for assistance.
Please add a healthy overage ranging from 15–25%, as shipping additional material can be expensive.
Two ring or screw-shank headed face nails or screws per furring strip within 1” of each edge.
Rigid furring maximum 16” on-center.
Vertical or horizontal, all profiles.
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.
ASTM E-84 Class A
PEFC chain of custody certified PEFC/29-44-03
EPD registration: JR-BC-20001E-A
Our resource hub for product information, technical articles, case studies, and content related to yakisugi and traditional Japanese wood products.
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Choose the options you’d like to add to your quote request.
Choose the options you’d like to add to your quote request.
Yes. Our Gendai and Pika-Pika S4S profiles are heat-treated on both faces and can be machine-coated with oil on both faces. For S3S board installation where the back side is exposed, the back of the boards can be stained with any dark color to blend in with the burned faces.
For structural elements (e.g., fence rails, posts), standard framing lumber can be used to support visible cladding of sugi or yakisugi “shou sugi ban” plank products.
Yes—we do offer stock for batten and louver applications. Please see our product profiles for current availability.
Alternately, our plank products can also be ripped using a table saw into the desired width for various styles—such as board-and-batten or board-and-board. Touch up oil is provided with each lumber order and can be used to stain any ripped edges prior to installation.
For layout suggestions, please contact the Nakamoto Forestry sales team to receive a copy of our installation manual.
Our wood products are frequently used in soffits or cosmetic roof decks. Pika-Pika and Joko clear grade Sugi (whether unoiled or with a transparent oil finish) are both commonly chosen for this purpose.
This gallery showcases work from an architect renowned for this aesthetic in Japan.
For fascia installations, we recommend either using our 5/4″ x 8″ S3S profile, or a structural subfascia under our 1×6” or 1×8” S3S profiles. Please plan on recoating the yakisugi surfaces with fresh oil every few years.
While occasionally seen in Scandinavian design, we do not recommend using wood plank products for roofing or other horizontal applications. Thin plank wood materials are prone to checking, twisting, and premature aging due to natural expansion and contraction.
Roofing applications require shorter-length shakes or shingles that allow for longitudinal expansion and contraction. If yakisugi is used on a roof or other horizontal application, plan on recoating yearly and eventually replacing the wood after several years.
Please contact the Nakamoto Forestry sales team to receive a copy of our installation manual and refer to “Section 7.3 Clearances” for specific guidance. Here are some basic considerations:
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).
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).