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STANDARD - S2S SURFACED
✓ Free North America Shipping
LENGTH
GLUE-UP READY - S4S DRESSED
✓ Free North America Shipping
LENGTH
All 4 sides surfaced — faces and edges jointed flat. No planer, no jointer needed. Boards arrive glue-up ready..
✓ Free shipping · Don't love it — we replace it · No questions
Every 8/4 board hand-selected, kiln-dried, and surfaced S2S. Ready to work the moment the box opens. This is the stock serious builders rely on for dining tables, thick slabs, and structural furniture that lasts.
8/4 Black Walnut arrives unfinished so you can apply your preferred oil or finish. One coat of mineral oil reveals the full depth of grain that makes this wood legendary among serious woodworkers.
We started as a small retail and furniture studio in Hamilton, Ontario — designing and building pieces by hand. To build well, we needed hardwood we could count on.
When we couldn't find the consistency we wanted, we began sourcing and selecting it ourselves. Out of the workshop came the lumber side — naturally.
We still run a full furniture shop today and we still hand-select every board the same way we select our own stock. Whether you're a professional or just getting started, your materials should make you feel excited to build — not overwhelmed.
8/4 Black Walnut is for builds that need real mass and presence. Here's what experienced woodworkers are creating — and what they say about working with it.
Dining table tops, thick bench seats, live edge slabs, statement coffee tables. 8/4 gives you the mass and depth that 4/4 simply can't match.
End grain cutting boards, thick charcuterie slabs, butcher block inserts. 8/4 gives you the depth to create boards that are as functional as they are stunning.
Table legs, bench aprons, thick drawer fronts, floating shelves with real mass. 8/4 handles the structural demands of serious furniture — and looks stunning doing it.
Big box stores rarely carry true 8/4 hardwood — and when they do, the selection, drying, and surfacing don't come close. Here's what our customers say:
Our 8/4 boards are hand-selected by woodworkers, kiln-dried to a stable moisture content, and surfaced S2S — ready to work with the moment the box opens. No cupping, no mystery moisture, no wasted material on your most important builds.
| Feature | The Knotty Lumber Co. | Big Box Stores | Online Marketplaces |
|---|---|---|---|
| 8/4 availability | Always in stock — multiple species | Rarely carried | Inconsistent stock |
| Board selection | Hand-selected for grain, colour & stability | Standard-grade stock | Varies by seller |
| Drying & stability | Kiln-dried — work-ready from day one | Drying method varies | May not list moisture details |
| Dimensions | Exact dimensions as advertised — always | Often undersized | Sizes may differ from listing |
| Surfacing | S2S standard · S4S upgrade available | Often requires heavy milling | Depends on seller |
| Consistency | 5 boards matched per pack | Varies between boards | No guarantee of match |
| Guarantee | 100% — don't love it, we replace it | Standard return policy | Platform-dependent |
| Shipping | Free across North America — always | Local pickup only | Usually paid · varies |
Free shipping on all orders
If your project calls for drawer fronts, cabinet doors, or precision furniture where 8/4 feels like overkill — our 4/4 Black Walnut packs deliver. Same hand-selected quality, same kiln-dried stability, same free shipping. Just easier to mill and more versatile for detailed work.
Free shipping · Same hand-selected quality · Same satisfaction guarantee
STANDARD - S2S SURFACED
✓ Free North America Shipping
LENGTH
GLUE-UP READY - S4S DRESSED
✓ Free North America Shipping
LENGTH
We automatically add free premium hardwood based on your order total. No codes. No sign-ups. Just free wood in your box.
No codes · Ships in same box · No extra charges · Automatic
"I am more than pleased with my order — the Black Walnut had amazing grain and was everything it was advertised as. Looking forward to getting started on some new projects."
"Your claims about sending the best Walnut were all true. Very, very pleased with the wood you sent."
"Walnut lumber is in near pristine condition! Love the consistency and the customer service follow up. Repeat customer for life!"
"Some big knots in 3 out of 5 planks — after contacting John, new replacement boards were shipped free of charge. Actually very nice, clear wood."
"This was my second order. My expectations were exceeded. When I had a question, the managing partner took time out of his busy day to answer them and make sure I was happy."
"I have purchased 5 different 5-packs from you in the last few months. ALL concerns were handled professionally. I will certainly purchase more."
Don't love the wood — we replace it. No questions. No stress. No risk. We stand behind every board we ship, every single time.
Hand-selected 8/4 Black Walnut — kiln-dried, surfaced S2S, and ready to build. 5 matched boards, free shipping across North America, 100% satisfaction guarantee on every order.
STANDARD - S2S SURFACED
✓ Free North America Shipping
LENGTH
GLUE-UP READY - S4S DRESSED
✓ Free North America Shipping
LENGTH
Free North America shipping · Don't love it — we replace it · 6,000+ woodworkers served · Hamilton, Ontario
