Do you have pickets burned on both sides for fencing and louver application?

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.

Can your siding be used for board and batten designs?

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.

Can yakisugi “shou sugi ban” be used on soffit and roof deck applications?

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.

Can yakisugi “shou sugi ban” be used on fascia applications?

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.

Can yakisugi “shou sugi ban” be used as a roofing material?

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.

How high should siding be off of the ground?

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: The general best practice is to maintain a clearance of at least 8 inches from grade to prevent water entry and wood rot. Calfire testing indicates that embers can accumulate in corners on horizontal surfaces adjacent to walls up to 5 inches. Therefore, it is advisable to keep all combustible materials at least 6 inches away from adjacent horizontal surfaces. Water splashing can lead to quicker fading at the bottoms of walls. The impact of mud depends on the type of material at grade (e.g., river pebbles, sod, decking). A 12-inch clearance from grade will minimize most mud splashing, but if the roof is not guttered, mud can splash up 3-4 feet from grade.

Exterior Siding, Fencing & Louvers

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Gendai® Weathering Stain Silver

Exterior

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. We apply our silver weathering stain prefinish prior to shipment. This unique product 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. Available burned on both faces (S4S) for fencing or louver applications.

For premium clear grade pricing, please contact Sales

SKUs

Profile	Select Grade	Premium Clear Grade
1 x 6 x 12 Shiplap	GA2618	GD2618
1 x 6 x 12 S3S Square Edge	GB2618	–
1 x 6 x 12 S4S Square Edge	GC2618	–
1 x 8 x 12 Shiplap	GE2618	–
1 x 8 x 12 S3S Square Edge	GF2618	–
1 x 2 x 12 S3S Square Edge	–	GG2618
5/4 x 2-1/2 x 12 S3S Square Edge	–	GH2618
5/4 x 2-1/2 x 12 S4S Square Edge	–	GI2618
5/4 x 5 x 12 S3S Square Edge	–	GJ2618
5/4 x 5 x 12 S4S Square Edge	–	GK2618
5/4 x 8 x 12 S3S Square Edge	GL2618	–

Considerations

This siding product has a unique living finish (AKA “patina”).
Designed to weather from pigmented silver to faded silver over time.
Due to its composition, the factory silver stain may appear uneven in color and tone.
Soot residue, caking, and blemishing (especially along board edges) are all common with this product.

Patina scale

Patina Scale: 9

Graphic of Patina Scale with a score of 9 indicating level of colorfast

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

*Dimensional shrinkage after manufacture is possible due to being a solid-sawn wood product.

1 x 6 x 12 Shiplap

1 x 6 x 12 S3S & S4S 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 & S4S Square Edge

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

5/4 x 8 x 12 S3S Square Edge

Finish details

Weathering Stain Silver

Our silver weathering stain is based on the Cape Cod gray aesthetic. It is designed to be maintenance-free as it develops a bleached coastal patina over time. This coating has two components. The first is a binder-free silver pigment that will wash off within the first year. The second is a mineral that reacts with tannic acid in the wood to develop a natural silver color. Delivered ready to install.

Prefinish Options

Stained face only *S4S square edge profile is burned and stained on face and back

Prefinish Color

Silver

Pressure-Treated Fire Retardant

Not Available

Field Cuts

Coat all field cuts and rips with touch up oil

Installation details

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.

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

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

Fire Resistance

Please inquire with our Sales team for current certifications and listings.

Sustainability

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

Resource downloads

Download Rendering Field

Download Product Specs

CSI Guide Specifications

Policies, Terms & Conditions

Exterior

Gendai® Weathering Stain Silver