1" Black Walnut Lumber – S4S, Kiln-Dried

Name: 1" Black Walnut Lumber – S4S, Kiln-Dried
Rating: 4.94 (51 reviews)

1" Black Walnut Lumber – S4S, Kiln-Dried

$11.99

Sale Sold out

Our 4/4 steamed Black Walnut is a solid, reliable choice if you’re looking for clean, consistent material that’s ready to work with right out of the box. Each board is kiln-dried, planed, and sanded smooth, then straight-lined on both edges so you’re not fighting the wood when you start your project.

Steaming gives Walnut a more even, darker brown tone, which makes it a great option when you want a consistent look across your build.

Perfect for cutting boards, shelves, cabinetry, furniture, and just about any project where you want walnut to look its best.

Product Details

Species: Steamed Black Walnut (Select & Better grade)
Thickness: 4/4 nominal, surfaced to ~7/8"
Widths: 3" – 7"
Lengths: 12" to 42" (Message us for longer lengths)
Edges: Straight-lined and square (S4S)
Surfacing: Planed and sanded smooth
Moisture Content: Kiln-dried to ~6–9%
Tolerances: Width ±1/16", Length ±1/4"

What to Expect

Each board will have its own natural grain and color variation.

Steaming helps create a more uniform look, but boards will not be identical. If you’re looking for closely matched pieces, feel free to reach out and we can help.

Thickness is listed as 4/4 nominal, with a finished thickness of approximately 7/8" after surfacing and sanding.

As with all real wood, slight movement can occur with changes in humidity. We recommend letting your boards acclimate before final use.

Why Steamed Walnut

Steaming blends the contrast between heartwood and sapwood, giving walnut a more consistent, rich brown appearance. It’s a popular choice for furniture and projects where a uniform tone matters.

Finishing Tips

Walnut is easy to work and finishes extremely well.

For cutting boards or food-use items, a simple mineral oil or beeswax finish works great. For shelves or furniture, polyurethane or hardwax oil will give you better long-term protection.

Custom Orders

If you need specific grain patterns, matched sets, or sizes outside of our standard options, send us a message and we’ll do our best to get you exactly what you need.

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5 stars: 49 (96%)
4 stars: 1 (2%)
3 stars: 1 (2%)
2 stars: 0 (0%)
1 star: 0 (0%)

High quality. Great communication

The wood is great, the milling was done expertly.

Perfect for the project I have in mind

These walnut boards were perfect. I'm pretty picky and I am thrilled with the quality. I highly recommend. Thank you!

Definitely 5 stars. The wood was everything I had hoped for. You are my new favorite place to get wood. Thank you a thousand times!

Looks great as advertised--like it

Wonderful piece of wood!! Exactly what I expected!! Thank you and I will be buying from you again!!

Absolutely lovely walnut. Was at my door safe and sound in like.. 36hrs? Granted I'm in a neighboring state, but still. Bonkers. And dangerous. Will absolutely be buying more from these fine folks in the future.

Fantastic!! I will be buying from this shop again!! Well done!!

Seems like great wood! This is for my first hardwood project I am working on so I do not have the experience to give details on how the actual quality of the wood is, but from what I see the measurements are right, it looks great, was packaged well, and was shipped out quickly! Thank you!

Excellent piece of wood, very easy process

Filling this out because Etsy requires us too otherwise it keeps a little dot at the top of my page.

Arrived with another order. Just as described.

Arrived in pristine condition, great craftsmanship on the cut i requested as well.

Great vendor, I was so happy to find someone who could fulfill an order for just a few planks. They were cut with precision, and the wood is just beautiful. Extremely well packaged, not a scratch on them. Timely shipping. I’ll definitely buy from this vendor again.

Great vendor, I was so happy to find someone who could fulfill an order for just a few planks. They were cut with precision, and the wood is just beautiful. Extremely well packaged, not a scratch on them. Timely shipping. Thank you so much.

Good quality as advertised :)

I have no words

Absolutely perfect in every way!! Always pleased with this seller!

Beautiful lumber, just as described.

I did not measure my space correctly. If I had, I would have realized that this product did not come in the size I needed. The plank is fine and came quickly, but it is not what I needed.

The wood is well grained, squared, smoothly sanded and in a word- beautiful. It is everything it was described to be. Top quality product, top quality service.

Securely packed and I got the exact measurements I needed. Great seller, very easy to communicate with.

Great, quality wood... perfectly cut and packed extremely well. I even had a couple questions and got responses in a very quick and friendly manner. Thank you!

Excellent quality and the seller works with you to give you exactly what you need.

This board look so amazing!

great product and well packaged

I would recommend this seller

The walnut came, it was good quality, no cracks or checks.

Great everything!!! Will buy from again.

just what i needed for my project.

nice walnut...will work well for my project 👍🏽

Awesome walnut boards - just as described. Also, very quick shipping.