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Clear Vertical Grain Sugi represents the most refined grade of Japanese cedar available—curated for its exceptional grain consistency, visual calm, and architectural precision.
High-grade clear vertical grain Japanese Sugi siding, paneling, and rough lumber. Quartersawn premium straight logs, graded for color and grain. Siding and paneling are available in nickel gap shiplap and sanded to 120grit. Rough lumber is available in 8/4 thickness, random widths, and multiple lengths. Suitable for exterior and interior applications, with or without a coating. Substitute on projects where North American cedar or cypress are specified. Delivered ready to install or mill.
For rough lumber pricing and quotes, please contact Sales.
1 x 5 x 12 Nickel Gap ! Clear Vertical Grain
1 x 6 x 12 Nickel Gap ! Clear Vertical Grain
| Profile | Clear Vertical Grain |
|---|---|
| 1 x 5 x 12 Nickel Gap Shiplap | CQ2000 |
| 1 x 6 x 12 Nickel Gap Shiplap | CR2000 |
| 8/4 Rough Lumber 78-3/4" – 94-1/2" (2000 – 2400mm) Lengths | CS8000 |
| 8/4 Rough Lumber 165-3/8" (4200mm) Lengths | CS4000 |
1 x 5 x 12 Nickel Gap Shiplap
1 x 6 x 12 Nickel Gap Shiplap
8/4 Rough Lumber - Vertical Grain
Sugi is often left unoiled in clean interior applications, or in exterior applications where a patina is desired. It can also be coated by the customer with standard tradecraft before or after installation. Leaving the wood unoiled in exterior applications allows it to weather naturally, according to the local climate.
n/a
n/a
Please inquire with our sales team.
n/a
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.
Tube adhesive and pin nails
Per design specifications
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
Our Sugi siding and paneling is sawn from straight, high-grade Japanese logs that are graded for color and grain. Substitute on projects where North American cedar or cypress are specified. Suitable for exterior and interior applications, with or without a coating.
For premium clear grade pricing and rough lumber quotes, please contact Sales
1 x 6 x 12 Shiplap ! Select Grade
1 x 6 x 12 S3S Square Edge ! Select Grade
1 x 8 x 12 S3S Square Edge ! Select Grade
1 x 6 x 12 Shiplap ! Premium Clear Grade
| Profile | Select Grade | Premium Clear Grade |
|---|---|---|
| 1 x 6 x 12 Shiplap | CA2000 | CD2000 |
| 1 x 6 x 12 S3S Square Edge | CB2000 | – |
| 1 x 8 x 12 S3S Square Edge | CF2000 | – |
| 8/4 Rough Lumber 157 -1/2" (4000mm) Lengths | - | CT4000 |
1 x 6 x 12 Shiplap
1 x 6 x 12 S3S Square Edge
1 x 8 x 12 S3S Square Edge
8/4 Rough Lumber - Flat Grain
Sugi is often left unoiled in clean interior applications, or in exterior applications where a patina is desired. It can also be coated by the customer with standard tradecraft before or after installation. Leaving the wood unoiled in exterior applications allows it to weather naturally, according to the local climate.
n/a
n/a
Please inquire with our sales team.
n/a
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.
Tube adhesive and pin nails
Per design specifications
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
Our Sugi siding and paneling is sawn from straight, high-grade Japanese logs that are graded for color and grain. Substitute on projects where North American cedar or cypress are specified. Our unique silver weathering stain is designed to mimic the look of aged, silver wood, with coloring that will continue to change and patina over time. This combination is only suitable for exterior installations.
For premium clear grade pricing, please contact Sales
1 x 6 x 12 Shiplap ! Select Grade
1 x 6 x 12 S3S Square Edge ! Select Grade
1 x 8 x 12 S3S Square Edge ! Select Grade
1 x 6 x 12 Shiplap ! Premium Clear Grade
| Profile | Select Grade | Premium Clear Grade |
|---|---|---|
| 1 x 6 x 12 Shiplap | CA2618 | CD2618 |
| 1 x 6 x 12 S3S Square Edge | CB2618 | – |
| 1 x 8 x 12 S3S Square Edge | CF2618 | – |
Patina Scale: 9
1 x 6 x 12 Shiplap
1 x 6 x 12 S3S Square Edge
1 x 8 x 12 S3S Square Edge
Our silver weathering stain is based on the Cape Cod gray aesthetic and is for exterior applications only. It is designed to be a maintenance-free living finish that develops a bleached coastal patina over time. The stain has two components. One is the initial silver pigment designed to wash off. The second is a mineral that reacts with atmospheric moisture and tannic acid in the wood, to develop a bleached silver color.
Stained face only
Silver
Please inquire with our sales team.
Coat all field cuts and rips with touch up stain
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
Use these trims for a polished appearance, efficient installation and to achieve optimal durability. Nakamoto Forestry does not require the purchase of accessories as part of a lumber package. However, accessories used must meet our installation parameters and local code. Always follow manufacturer installation requirements.
Extruded trims are not flashing and are not a moisture management system. They have a primarily cosmetic function and will not stop all water intrusion into the structure.
*For all accessory samples in one package, choose the Siding Accessory Sample Kit
| SKU | Size |
|---|---|
| LA58B08 | 8' Length |
| LA58B10 | 10' Length |
Use these trims for a polished appearance, efficient installation and to achieve optimal durability. Nakamoto Forestry does not require the purchase of accessories as part of a lumber package. However, accessories used must meet our installation parameters and local code. Always follow manufacturer installation requirements.
Extruded trims are not flashing and are not a moisture management system. They have a primarily cosmetic function and will not stop all water intrusion into the structure.
*For all accessory samples in one package, choose the Siding Accessory Sample Kit
| SKU | Size |
|---|---|
| LA58B08 | 8' Length |
| LA58B10 | 10' Length |
Use these trims for a polished appearance, efficient installation and to achieve optimal durability. Nakamoto Forestry does not require the purchase of accessories as part of a lumber package. However, accessories used must meet our installation parameters and local code. Always follow manufacturer installation requirements.
Extruded trims are not flashing and are not a moisture management system. They have a primarily cosmetic function and will not stop all water intrusion into the structure.
*For all accessory samples in one package, choose the Siding Accessory Sample Kit
| SKU | Size |
|---|---|
| IW34B08 | 8' Length |
| IW34B10 | 10' Length |
Use these trims for a polished appearance, efficient installation and to achieve optimal durability. Nakamoto Forestry does not require the purchase of accessories as part of a lumber package. However, accessories used must meet our installation parameters and local code. Always follow manufacturer installation requirements.
Extruded trims are not flashing and are not a moisture management system. They have a primarily cosmetic function and will not stop all water intrusion into the structure.
*For all accessory samples in one package, choose the Siding Accessory Sample Kit
| SKU | Size |
|---|---|
| Z58B08 | 8' Length |
Use these trims for a polished appearance, efficient installation and to achieve optimal durability. Nakamoto Forestry does not require the purchase of accessories as part of a lumber package. However, accessories used must meet our installation parameters and local code. Always follow manufacturer installation requirements.
Extruded trims are not flashing and are not a moisture management system. They have a primarily cosmetic function and will not stop all water intrusion into the structure.
*For all accessory samples in one package, choose the Siding Accessory Sample Kit
| SKU | Size |
|---|---|
| J58B08 | 8' Length |
| J58B10 | 10' Length |
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.
Which oil finish should we choose for our project? Each project has its own unique design parameters. We work closely with customers and build teams to determine the combination of product and coating that best suits the specific project requirements. To begin the process of making an informed decision, we encourage you to review our Buyer’s Guide, product spec sheets, request product samples, and explore both our blog posts, and project portfolio for inspiration.
Your gray product samples and finish coating images seem to have a blue hue. Do you have a different option that is less blue? We offer a range of gray coating options—none of them include any blue pigments. However, due to how the human eye perceives gray tones under different lighting conditions, they may sometimes appear to have a slight blue hue. Natural oil finishes can also impart an iridescent blue sheen due to oil residue, which tends to fade after exposure to exterior weather.
A perceived blue tone will typically fade for several reasons. Exterior wood siding tends to mellow after installation, developing reddish undertones. Natural oil finishes will also undergo slight oxidation, often resulting in a subtle yellow hue that warms up the siding. Interior paneling applications often see similar warming effects after installation as the wood darkens and the coating oxidizes.
In addition, linseed oil coatings tend to exhibit warmer tones than alkyd coatings. The lighter the color the more noticeable these nuances will be in the final appearance.
What exactly is an alkyd oil finish? Like traditional oil-based products, alkyds provide a finish coating with high elasticity. The alkyd oil finishes we use are made from vegetable oil that is chemically polymerized and then dissolved into a water base. Cross-linking molecules bond as the finish dries, creating a durable coating on the wood surface. Thanks to their higher pigment content, alkyd oil finishes are typically more opaque and offer better UV protection than traditional oil coatings.
What are the differences between the various types of coatings you offer? We offer a range of factory coatings for our products. For interior applications, customers can specify polyurethanes, alkyd oils, and acrylic coatings. For exteriors, we have tung, linseed, and alkyd oils as well as acrylics and weathering stains.
Tung and linseed are semi-transparent traditional oil finishes crafted to highlight the color and depth of the wood underneath; these are available exclusively as one-coat options. Alkyd oils are semi-solid/opaque stain finishes; we provide a standard two coats of prefinish on these products. Acrylic coatings are solid finishes that completely encase the wood in multiple protective layers, resulting in the best coating longevity.
Please refer to our Finish Options page for more detailed descriptions and request samples to assist with your selection process.
Please describe the exterior coating options you have in terms of aesthetic range—between wabi-sabi patina on one end of the scale and best coating durability on the other. Our highest patina options start with unoiled wood or using our weathering stain. Linseed oil finishes also fall within the patina side of the range.
One-coat alkyd options land in the middle of the range but leaning more toward durability. Two coats of alkyd will be even more durable. Two or three coats of an acrylic finish would be the most durable exterior coating options we offer.
Please refer to the Patina Scale reference chart on our Finish Options page, as well as the individual Patina Scale graphics listed on each product page.
Is yakisugi “shou sugi ban” siding or paneling traditionally back-oiled? Are Nakamoto Forestry’s products back-oiled? Historically, back-oiling practice was not used for yakisugi siding in Japan. Back-oiling involves applying a coating to the back (typically uncharred) face of the wood siding. This practice is beneficial for managing moisture and minimizing dimensional movement, particularly cupping.
Nakamoto Forestry provides back-oiling on all of our prefinished products. We recommend reviewing individual product specification sheets, pricing details, and obtaining samples to determine the best choice for your project.
Can you please tell me about the tung oil you use on your Suyaki products? Can it be specified for other products? The tung oil coating on our Suyaki products enhances its durability for exterior exposure. This robust finish transforms the product’s delicate soot layer into a leathery surface that’s both resilient and user-friendly. While many high-grade traditional oil finishes include tung oil, we exclusively offer a tung oil coating on Suyaki for compatibility reasons. This option cannot be specified for any other offerings.
Can we use your silver weathering stain for an interior installation? Our weathering stain is exclusively formulated for exterior use; it is not suitable for interior applications. This product features a silver pigment that is applied to the surface without a binder—resulting in a soft residue on the surface. Also, the stain’s intended aesthetic effect requires that the wood have full exposure to the elements.
For an interior application, we would instead recommend choosing either our Gendai product with the Light Gray alkyd oil coating option or staining our unoiled Sugi product on-site to match the silver color of our exterior-grade weathering stain.
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).
