⚡ Limited Time Sale
Black Walnut · 4/4 · 5-Pack
Premium Wood.
Built Right.
For the Builds That Matter.
★★★★★ 4.8/5 · 375+ reviews · 6,000+ woodworkers
  • Hand-selected by woodworkers — same wood we build with
  • Kiln-dried for stability — no warping, no mystery moisture
  • Free shipping across North America — no minimum
  • Don't love it — we replace it, no questions asked

STANDARD - S2S SURFACED

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✓ Free North America Shipping

LENGTH

GLUE-UP READY - S4S DRESSED

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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

🤲Hand-selected by woodworkers
🌡️Kiln-dried for stability
📐S2S surfaced — project ready
🚚Free North America shipping
100% satisfaction guarantee
Black Walnut grain portrait — oiled board showing rich chocolate tones
The species
Why Black Walnut
Is In a Class
of Its Own.
🎨
Rich Chocolate Tones
Deep brown heartwood from warm espresso to near-black. Subtle grain variation that adds sophistication to every piece. No other domestic hardwood comes close.
🔧
Exceptionally Workable
Machines smoothly, carves cleanly, and takes oil or film finishes beautifully. Forgiving for all experience levels — beginner and professional alike.
Improves With Age
Black Walnut deepens and enriches over time. Pieces built today become heirlooms. Wood that tells a better story every year.
🏆
North America's Premium Standard
The most sought-after domestic hardwood in North America. Used by furniture makers, craftspeople, and luthiers for generations.
Exactly what arrives at your door

No Guesswork.
No Prep Work.

Every board hand-selected, kiln-dried, and surfaced S2S. Ready to cut and build the moment the box opens. This is the wood we use in our own furniture shop — the same standard, every single order.

  • 01
    Quantity
    5 boards per pack — matched for character, grain, and colour consistency
  • 02
    Thickness
    4/4 (~1" thick) — the most versatile hardwood thickness. Works with standard tools
  • 03
    Width
    4"–6" wide — usable widths selected, no narrow offcuts or waste pieces
  • 04
    Lengths
    24" or 48" — choose at checkout based on your project needs
  • 05
    Surfacing
    S2S — two flat faces. Consistent thickness. S4S upgrade adds jointed straight edges — glue-up ready
  • 06
    Drying
    Kiln-dried for stability — no mystery movement. Consistent moisture content throughout
  • 07
    Selection
    Hand-selected by woodworkers — every board chosen for grain, colour, and stability. Same wood we build with ourselves
Black Walnut 4/4 board ends showing grain rings and S2S flat faces
Free shipping on all orders · 100% satisfaction guarantee
Watch what happens

Apply One Coat of Oil.
Watch This Happen.

Black Walnut arrives unfinished so you can apply your preferred oil or finish. One coat of mineral oil transforms raw wood into something people pay $150–250 for at craft markets.

Raw unfinished Black Walnut board — before oiling
Before — Raw
Raw Black Walnut
Unfinished — lighter, muted grain
Black Walnut board after oiling — rich chocolate grain revealed
After — One Coat Oil
Rich Chocolate Depth
Same board — one coat mineral oil
"The wood is almost too nice to cut up! Beautiful graining — no prep work other than a light sanding. Ideal for visual pieces."
— Keith R.  · Verified Buyer · 5★
Our story
We Started As
Furniture Builders.

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.

6,000+
Woodworkers
4.8★
Avg Rating
John at The Knotty Lumber Co. shop
What builders make with 4/4 Black Walnut
What Will
You Build?

Black Walnut 4/4 works for woodworkers at every skill level. Here's what our customers are building — and what they say about the results.

Handmade Black Walnut box — keepsake or gift build
🎁
Boxes, Gifts & Keepsakes

Jewellery boxes, keepsake boxes, gift boxes, display cases. Black Walnut's natural richness makes every handmade box look like it belongs in a gallery.

"Beautiful wood as always and the best customer service ever. John is a pleasure to deal with." — Donald W.
Finished Black Walnut cutting board — oiled and styled
🍖
Cutting Boards & Charcuterie

End grain and face grain boards, charcuterie platters, serving boards. Black Walnut's density and oil uptake make it ideal for food-safe builds.

"Beautiful wood. Extremely dense as expected. Looks great in my cutting boards." — Glenn R.
Handmade Black Walnut memorial urns — tribute pieces
🕊️
Urns, Memorials & Tributes

Memorial urns, tribute pieces, commemorative boxes. When the build matters most, Black Walnut's warmth and depth makes something truly lasting.

"Beautiful product to work with. I made urns for pets we've lost. Mixed with walnut — stunning." — Marv R.
See Pricing & Order ↓
Free shipping · 100% satisfaction guarantee
Why woodworkers choose Knotty over local
Not What You Get
At Home Depot.

Most woodworkers start at the big box store. Then they find us — and they don't go back. Here's what our customers say about the difference:

"Unlike Home Depot or Lowe's, these boards were straight as, you guessed it, a board! The exact dimensions advertised."
— Ben S.  · Verified Buyer · 5★

Our boards are hand-selected by woodworkers, kiln-dried for stability, and surfaced S2S — ready to use the moment the box opens. No warping. No wasted cuts. No surprises.

FeatureThe Knotty Lumber Co.Big Box StoresOnline Marketplaces
Board selectionHand-selected for grain, colour & stabilityStandard-grade stockVaries by seller
Drying & stabilityKiln-dried — work-ready from day oneDrying method variesMay not list moisture details
DimensionsExact dimensions as advertised — alwaysOften undersizedSizes may differ from listing
SurfacingS2S standard · S4S upgrade availableOften requires millingDepends on seller
Consistency5 boards matched per packVaries between boardsNo guarantee of match
SupportReal woodworkers answer questionsGeneral retail staffUsually none
Guarantee100% — don't love it, we replace itStandard return policyPlatform-dependent
ShippingFree across North America — alwaysLocal pickup onlyUsually paid · varies
Serious builders stock up
Bundle & Save.
The More You Build,
The More You Save.
Tier 1 · Starter
Starter Stack
2 × 4/4 Black Walnut 5-Packs
Perfect for a single project or your first time stocking premium walnut.
✓ Save 5%
Select This Bundle →
Most Popular
Tier 2 · Craftsman
Craftsman's Choice
3 × 4/4 Black Walnut 5-Packs
The sweet spot — enough material for a full project with off-cuts for future builds.
✓ Save 10%
Select This Bundle →
Tier 3 · Platinum
Platinum Pick
5 × 4/4 Black Walnut 5-Packs
Maximum savings for production builders who never want to run out mid-project.
✓ Save 20%
Select This Bundle →

Free shipping on all orders

Thinking bigger?
Same Wood.
Twice the Thickness.

If your project calls for dining table tops, thick bench seats, or structural furniture with real mass — our 8/4 Black Walnut packs deliver. Same hand-selected quality, same kiln-dried stability, same free shipping. Just more wood to work with.

8/4 Black Walnut lumber pack — thick premium hardwood

Free shipping · Same hand-selected quality · Same satisfaction guarantee

STANDARD - S2S SURFACED

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✓ Free North America Shipping

LENGTH

GLUE-UP READY - S4S DRESSED

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✓ Free North America Shipping

LENGTH

   

We reward every builder
Free Wood.
Every Order.

We automatically add free premium hardwood based on your order total. No codes. No sign-ups. Just free wood in your box.

Tier 01
1 Free
Premium Board
Orders over $300
Every qualifying order unlocks a free premium hardwood board — automatically added before we ship.
Tier 02
3 Free
Premium Boards
Orders over $500
Larger orders unlock three free premium boards. Most builders hit this tier — it's the sweet spot.
Tier 03
Free
4ft Lumber Pack
Orders over $1,000
Our largest orders earn a full 4ft premium hardwood lumber pack — a complete bonus bundle on us.
Black Walnut Hard Maple Cherry Ambrosia Maple Aromatic Cedar

No codes · Ships in same box · No extra charges · Automatic

Order Now ↓
Free shipping · Builder Rewards added automatically
What woodworkers say
Real Wood.
Real Builders.
Real Results.
4.8
★★★★★
375+ verified reviews
6,000+ woodworkers served
★★★★★

"Was a little nervous purchasing sight unseen but after reading just about every review, took the plunge. Could not be happier. Will purchase again."

— Robert G.
First-Time Buyer · Verified
★★★★★

"Unlike Home Depot or Lowe's, these boards were straight as, you guessed it, a board! The exact dimensions advertised."

— Ben S.
Verified Buyer
★★★★★

"Walnut lumber is in near pristine condition! Love the consistency and the customer service follow up. Repeat customer for life!"

— Pat
Black Walnut · Verified Buyer
★★★★★

"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."

— Simon G.
Guarantee in action · Verified
★★★★★

"I'd never ordered from Knotty before. It arrived at my Florida home in about 3 days in excellent condition. I've since ordered walnut, red oak, and purpleheart."

— Robert A.
Florida, United States · Verified
★★★★★

"I have purchased 5 different 5-packs from you in the last few months. ALL concerns were handled professionally. I will certainly purchase more."

— Henry S.
Repeat Buyer · Verified
Order Now ↓
375+ verified reviews · Free shipping · 100% guarantee
Every question answered
Before You Order.
Do I need a planer or jointer to use these boards?
For our standard S2S boards — no planer required. Faces are already flat and surfaced to consistent thickness. Choose our S4S upgrade and your boards arrive with all 4 sides surfaced — completely glue-up ready with no milling needed at all.
How do I know the boards won't arrive warped or twisted?
We kiln-dry all lumber and hand-select every board for straightness and stability before it goes into a pack. If any board arrives with movement you're unhappy with, we replace it immediately. No questions. Our 40% reorder rate tells you that promise is real.
Will I get usable widths — or a bunch of narrow pieces?
Our 4/4 Black Walnut packs contain boards 4"–6" wide — selected for usable widths, not offcuts. We match boards within a pack for consistency in colour and character. What's shown in the photos is representative of what you receive.
What's the difference between 24" and 48" lengths?
24" boards are ideal for smaller projects, cross-cuts, and minimising waste. 48" boards give you more flexibility for furniture components, table legs, aprons, and builds requiring longer grain runs. Both come in 5-board packs at the same quality standard.
What projects is 4/4 Black Walnut best suited for?
4/4 is your go-to thickness for most woodworking projects — floating shelves, cutting boards, cabinet doors, small furniture, boxes, and gifts. It works with standard home workshop tools with no heavy milling required. If you need 2" thick material for table tops or benches, consider our 8/4 packs instead.
What does S2S mean — and what does S4S add?
S2S means Surfaced 2 Sides — both faces are planed flat and to consistent thickness. You still need to joint the edges before gluing up. S4S adds the edges — all 4 sides surfaced, boards arrive completely ready to glue up with no jointing required. Worth the $18 upgrade if you don't have a jointer.
What's the satisfaction guarantee exactly?
Simple: if you're not 100% happy, we replace it. No lengthy process. Send us a photo, tell us what's wrong, and we ship a replacement immediately. Our 40% returning customer rate tells you this isn't just policy — it's how we operate every single day.
Is free shipping really free — no minimum order?
Yes — no threshold, no minimum, no fine print. Every order ships free across the US and Canada. 3–7 business days. Carefully packed. If anything arrives damaged, that's covered under our satisfaction guarantee — replacement at no cost to you.
100% Satisfaction Guarantee

Don't love the wood — we replace it. No questions. No stress. No risk. We stand behind every board we ship, every single time.

Order Now ↓
Free shipping · Don't love it — we replace it · No questions
Ready to build?
Premium Walnut.
Your Door.
Free Shipping.

Hand-selected 4/4 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

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✓ Free North America Shipping

LENGTH

GLUE-UP READY - S4S DRESSED

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✓ Free North America Shipping

LENGTH

Free North America shipping · Don't love it — we replace it · 6,000+ woodworkers served · Hamilton, Ontario

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