Business Details
50+ Years
experience
Your Trusted Source for Building Materials in Seattle
Since 1921, Alki Lumber has been a cornerstone of the West Seattle community, providing premium building materials and exceptional service to homeowners, contractors, and commercial builders. Founded by James A. Sweeney, our family-owned business has thrived through four generations, maintaining a steadfast commitment to quality and customer satisfaction. Our extensive inventory includes framing lumber, treated lumber, plywood, siding, decking, and specialty products like engineered joists and beams, sourced from trusted industry suppliers. We pride ourselves on delivering materials safely and efficiently throughout the Greater Seattle area, with a fleet of experienced drivers and a focus on meeting tight deadlines.From residential projects to large-scale commercial developments, our knowledgeable team works closely with clients to understand unique needs, offering tailored solutions and expert guidance. With a legacy spanning over a century, we continue to uphold our founding philosophy: providing unmatched service and the highest-quality materials to support the evolving needs of our customers and community.
Services
Framing Lumber
Treated Lumber
Plywood
Siding
Decking
Concrete Form Panels
Hardware
Engineered Joists
Beams
Delivery Services
Details
- Year established: 1921
Highlights and features
- We are a fourth-generation family-owned business serving Seattle since 1921.
- We offer a comprehensive inventory of premium framing lumber, treated lumber, and specialty products.
- Our team provides expert guidance for residential and commercial construction projects.
- We guarantee reliable delivery across the Greater Seattle area.
- We maintain long-standing relationships with trusted industry suppliers.
Services
Framing Lumber
We provide premium framing lumber and studs for residential and commercial construction projects. Our inventory includes treated and untreated options to meet diverse building needs. Our team ensures accurate, timely delivery of materials to support efficient project timelines.
Decking Materials
Our decking solutions include pressure-treated lumber, cedar, and composite systems for durable outdoor structures. We offer specialized products like Zome-Tek Decking and IPE (Ironwood) for custom applications. Expert staff assist with material selection for optimal performance and aesthetics.
Concrete Form Panels
We supply treated fire-retardant and standard concrete form panels for commercial and infrastructure projects. Our inventory includes Snap-Ties, Cleats, and reinforcing materials to support safe, code-compliant construction. Delivery services ensure materials arrive when and where needed.
Delivery Services
Our fleet delivers building materials safely across the Greater Seattle area. We accommodate single or multiple daily deliveries for projects of all sizes. Drivers are trained to handle time-sensitive orders with precision and care.
Custom Orders
We fulfill custom requests for engineered joists, beams, and specialty lumber not in standard inventory. Our supplier network enables rapid procurement of unique materials. Staff work closely with contractors to meet exact project specifications.
People
Lynn Sweeney
Owner
Fourth-generation leader of Alki Lumber, Lynn Sweeney continues her family's 100-year legacy in the lumber industry. Starting at age 12, she brings deep operational knowledge and a commitment to service excellence that has defined the company since 1921.
Questions
What are Alki Lumber's business hours?
We operate Monday-Friday from 6:30 AM to 4:30 PM. We're closed on major holidays including Memorial Day, Independence Day, and Christmas.
Do you deliver building materials?
Yes, we offer reliable delivery services throughout the Greater Seattle area with experienced drivers handling time-sensitive orders.
What specialty products do you offer?
We provide engineered joists, beams, IPE (Ironwood) decking, and custom-ordered materials through our supplier network for unique projects.
How long has Alki Lumber been in business?
Since 1921, we've served Seattle as a fourth-generation family-owned building materials supplier with deep community roots.
What areas do you serve?
We primarily serve West Seattle, the Puget Sound region, and ship materials to Alaska and the broader Northwest.
Reviews (4)
Renee H.
Jan 08, 2021
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I wanted to support a local business, I really did. However, it is absolutely disgusting to see half of the staff unmasked and not adhering to Covid-19 protocols. There was an older man at the front of the store that had his mask on his chin and was helping customers. Not to mention, the multiple (almost all) employees outside that had absolutely no mask on whatsoever. The sign on the door said "Max Capacity 5", and there were 15+ people inside. We have been over this, and the community deserves better. This is direct reflection of ownership and leadership.
Fred Northup Jr
Dec 03, 2019
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I love to shop local. Great customer service from experts who know what theyre talking about. I avoid big chains and go here!
Kelsey
Aug 19, 2019
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Awesome customer service! They were able to help me make angled cuts on wood for a DIY craft project. Thanks guys!
Mark Mallon
Dec 26, 2018
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They get you in and out fast if you need to pick up a few hundred boards. For anything more than two people can carry on their shoulders they use forklifts so they're fast. You can easily save an hour coming to this place over going to Home Depot loading your cart Wheeling your cart and unloading your cart depending on the size of your order.
