Choose the options you’d like to add to your quote request.
Choose the options you’d like to add to your quote request.
Suyaki® is the most traditional and dramatic of our yakisugi “shou sugi ban” products. Its thick, hydrophobic, UV-inhibiting soot layer ensures fantastic color and wood longevity for exterior installations. Unoiled Suyaki has an E84 class A fire resistance. Our finish-coated Suyaki products for interior applications look similar to our exterior-installed Suyaki products, but with unique tactile characteristics.
Suyaki yakisugi naturally features an extremely delicate soot surface that easily blemishes. Bundles and planks must be handled and installed with care. Please make sure that the installers have reviewed samples and are aware of the need for special handling before the lumber arrives at site.
Suyaki® is the most traditional and dramatic of our yakisugi “shou sugi ban” products. Its thick, hydrophobic, UV-inhibiting soot layer ensures fantastic color and wood longevity for exterior installations. Unoiled Suyaki has an E84 class A fire resistance. Our finish-coated Suyaki products for interior applications look similar to our exterior-installed Suyaki products, but with unique tactile characteristics.
Suyaki yakisugi naturally features an extremely delicate soot surface that easily blemishes. Bundles and planks must be handled and installed with care. Please make sure that the installers have reviewed samples and are aware of the need for special handling before the lumber arrives at site.
Sorting:
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.
For premium clear grade and clear vertical grain pricing, please contact Sales
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
5/4 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
| SKU | Grade | Profile |
|---|---|---|
| SA2411 | Select | 1 x 6 x 12 Shiplap |
| SB2411 | Select | 1 x 6 x 12 S3S Square Edge |
| SE2411 | Select | 1 x 8 x 12 Shiplap |
| SF2411 | Select | 1 x 8 x 12 S3S Square Edge |
| SG2411 | Clear Vertical Grain | 1 x 2 x 12 S3S Square Edge |
| SH2411 | Premium Clear | 5/4 x 2-1/2 x 12 S3S Square Edge |
| SJ2411 | Premium Clear | 5/4 x 5 x 12 S3S Square Edge |
| SL2411 | Select | 5/4 x 8 x 12 S3S Square Edge |
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 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.
For more detailed installation and maintenance guidance, our installation manual is available upon request. Please contact our sales team to get a copy.
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.
For premium clear grade and clear vertical grain pricing, please contact Sales
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
5/4 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
| SKU | Grade | Profile |
|---|---|---|
| SA2000 | Select | 1 x 6 x 12 Shiplap |
| SB2000 | Select | 1 x 6 x 12 S3S Square Edge |
| SE2000 | Select | 1 x 8 x 12 Shiplap |
| SF2000 | Select | 1 x 8 x 12 S3S Square Edge |
| SG2000 | Clear Vertical Grain | 1 x 2 x 12 S3S Square Edge |
| SH2000 | Premium Clear | 5/4 x 2-1/2 x 12 S3S Square Edge |
| SJ2000 | Premium Clear | 5/4 x 5 x 12 S3S Square Edge |
| SL2000 | Select | 5/4 x 8 x 12 S3S Square Edge |
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 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.
For more detailed installation and maintenance guidance, our installation manual is available upon request. Please contact our sales team to get a copy.
ASTM E-84 Class A
PEFC chain of custody certified PEFC/29-44-03
EPD registration: JR-BC-20001E-A
Our polyurethane finish for Suyaki® offers yakisugi “shou sugi ban” paneling with an unbrushed charred black surface. Its high-traffic, non-toxic, washable surface makes it suitable for interior applications.
For premium clear grade and clear vertical grain pricing, please contact Sales
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
5/4 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
| SKU | Grade | Profile |
|---|---|---|
| SA2551 | Select | 1 x 6 x 12 Shiplap |
| SB2551 | Select | 1 x 6 x 12 S3S Square Edge |
| SE2551 | Select | 1 x 8 x 12 Shiplap |
| SF2551 | Select | 1 x 8 x 12 S3S Square Edge |
| SG2551 | Clear Vertical Grain | 1 x 2 x 12 S3S Square Edge |
| SH2551 | Premium Clear | 5/4 x 2-1/2 x 12 S3S Square Edge |
| SJ2551 | Premium Clear | 5/4 x 5 x 12 S3S Square Edge |
| SL2551 | Select | 5/4 x 8 x 12 S3S Square Edge |
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 & S4S Square Edge
5/4 x 8 x 12 S3S Square Edge
Our non-toxic polyurethane is a clean and hard coating that protects the wood from dirt and abrasion. It can be quickly wiped down with a moist cloth, or easily touched up. This coating is not suitable for exterior applications or in any installation where the product will be consistently exposed to moisture (e.g., shower walls/ceilings). Delivered ready to install.
Coated six sides
Black
Not Available
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 15–25%, as shipping additional material can be expensive.
Tube adhesive and pin nails
Per design specifications
Vertical or horizontal, all profiles.
For more detailed installation and maintenance guidance, our installation manual is available upon request. Please contact our sales team to get a copy.
ASTM E-84 Class C
PEFC chain of custody certified PEFC/29-44-03
Find everything you need to know about our products—from FAQs, to finish coating options, to manuals and technical documentation
Answer a few quick questions, and our experts will provide personalized recommendations tailored to your style, needs, and project requirements.
Choose the options you’d like to add to your quote request.
Choose the options you’d like to add to your quote request.
We want to use Suyaki on both the exterior and the interior of our project. Which Nakamoto Forestry product should we use for this, or do we need separate products for the two scopes? For the exterior scope of your project, we would recommend either unoiled Suyaki or Suyaki with a tung oil finish. For the interior portions, please separately specify Suyaki with a polyurethane coating. A clear distinction in specifications ensures that each product is optimized for its designated application in support of superior performance and customer satisfaction.
We carefully specify the suitability of our products for interiors, exteriors, or both. Exterior-only products are exclusively designed for outdoor use and should never be used indoors. Interior-only products are intended for indoor applications and should not be utilized outdoors.
Is Suyaki your most durable and lowest maintenance yakisugi “shou sugi ban” product? The short answer is yes. Our Suyaki product is designed to offer the longest lifespan; unbrushed soot layer can remain intact for 30-50 years without any maintenance.
Despite its resilience, Suyaki will inevitably develop blemishes through handling and exposure; this is a natural characteristic of this traditional material. Over the years, the soot layer may be scratched, abraded, and gradually eroded, revealing the brown wood beneath. It can be rejuvenated with touch-ups and recoating using black oil, maintaining the timeless wabi-sabi aesthetic.
As the Suyaki soot layer weathers, the exposed wood beneath begins to resemble our single-brushed Gendai products. Over time, it will transition to look more like our twice-brushed Pika-Pika products.
I am concerned about installing Suyaki since we have never used it before. How should I quote the labor to install it? Are we going to get completely covered in soot? The Suyaki surface is delicate and susceptible to damage during transport and installation. Although installation follows standard wood siding procedures, extra care should be taken when handling the boards to minimize potential damage. To address any blemishes, we recommend utilizing the black oil provided with each wood shipment for touch-ups.
Suyaki installation labor may increase by approximately 10% compared to our other wood products due to the need for careful handling.
For those with concerns about using Suyaki, we suggest opting for one of our brushed surface products (Gendai or Pika-Pika) or securing an installer experienced in working with Suyaki.
We want something less glossy than your interior Suyaki product. Can we use exterior Suyaki with tung oil instead, or do you have an option that is more matte? Suyaki with an exterior-grade tung oil finish is not suitable for indoor applications. For interior applications, Suyaki requires multiple heavy coats of polyurethane to stabilize the delicate soot surface. By their nature, most polyurethanes become glossier with thicker applications. Unfortunately, all of the matte-sheen polyurethanes we’ve tested have proven to be dull and uninteresting on our Suyaki product.
If you desire interior paneling with a less glossy appearance, we recommend specifying Gendai or Pika-Pika with a black alkyd or acrylic coating.
We like how hard your Suyaki with interior polyurethane coating is and want to use it for exterior application. Is that okay? In most cases, our interior and exterior coatings should not be used interchangeably. The heavy polyurethane coating applied to Suyaki for interior applications is specifically formulated for its intended environment; it is not suitable for exterior applications. When exposed to the typical UV and moisture of an exterior siding installation, a polyurethane coating will start to degrade. Even the most durable hard shell polyurethane coatings will eventually exhibit issues such as turning milky white, yellowing, cracking, and/or peeling.
While options like marine-type varnishes offer some of the toughest exterior coatings available, these finishes are designed to be periodically scraped off and reapplied on a regular maintenance schedule. This simply could be done with yakisugi products due to the nature of the material.
A heavy polyurethane coating lacks the elasticity needed to enhance the natural resilience of yakisugi against ever-changing exterior conditions. Even worse, it would significantly reduce the expected lifespan of a 100-year siding material—potentially limiting it to just five years.
Please specify one of our products designed for exterior applications instead.
Why is Suyaki more expensive than Gendai? Protecting the delicate soot layer on our Suyaki products requires careful manufacturing and packing processes. This additional labor slightly raises the production costs for Suyaki versus our Gendai products.
