- 5728 East Lake Sammamish Parkway SE Issaquah, WA 98029
- 425.392.3631
- sales@issaquahlumber.com
Issaquah Lumber offers the Cascade Collection by Amble Wood Co., a made-to-order range of premium modified and traditional wood species milled to fit the GRAD System. Choose from standard or custom options, delivered to you ready for installation.
Looking for a specific coating, texture, or profile? We’ve got you covered. The Cascade Collection by Amble Wood Co. offers a range of standard finishes or custom colors upon request. Standard and custom profiles are available with a range of textures, including Architectural (smooth), Heritage (resawn), and Artisan (wire brushing).
Accoya is made from fast-growing, sustainably sourced radiata pine and is modified through a proprietary acetylation process. The result? A high-performance, sustainable lumber product with unmatched dimensional stability used for siding, decking, soffits, windows, and doors, and other exterior applications. Accoya withstands moisture, insects, rot, and harsh weather without cupping or warping.
Choose from Natural or Accoya Color Grey for a clean, modern aesthetic—both options offering a low-maintenance, sustainable solution.
Standard to custom profiles are available and compatible with the GRAD System and our Cascade Collection.
Arbor Wood is domestically sourced and produces a range of ThermoWood® products made from responsibly harvested wood species and enhanced through a specialized, three-phase thermal modification process using only heat and steam—no chemicals. By altering the wood’s cellular structure in a high-heat, oxygen-controlled environment, the process reduces moisture absorption, increases dimensional stability, and makes the material resistant to rot and fungal decay. The result is a lightweight, durable, and sustainably produced wood product with a rich, through-color tone, ideal for siding, decking, and architectural millwork applications.
We supply a selection of Arbor Wood Co. species for siding, decking, and other millwork applications, including:
LDCwood® is a leading European producer of ThermoWood®, manufactured in Belgium and distributed across North America by BPWood. Sourced from Scandinavian softwoods and responsibly harvested hardwoods—including Ayous, Nordic Pine, and Nordic Spruce—each species offers distinct aesthetics and performance characteristics. Using the 100% natural ThermoWood® process of heat and steam, LDCwood enhances durability, dimensional stability, and longevity, providing a sustainable solution for siding, decking, and architectural applications. LDCwood brings proven European thermal modification expertise to specialty lumber dealers across the U.S. and Canada.
We will always offer traditional wood species — it’s what we built our company on and you can count on a carefully curated selection of traditional wood species known for their timeless aesthetics, ease of working with, and enduring warmth. Select from Western Red Cedar, CVG Hemlock, and CVG Douglas Fir, all offering consistent grain, outstanding performance, and versatility.
All of our traditional wood options were chosen to work seamlessly with the GRAD System. And they are easy to finish with stains, oils, or transparent coatings.
