By Joshua Farnsworth
When I got started in woodworking I was incredibly confused about choosing wood lumber. In the above video, and in the article below, I share what I’ve learned about the basics of choosing wood lumber for woodworking and types of wood for woodworking. I want to save you time and headaches in trying to understand woodworking wood!
The topic of lumber confused me mainly because I couldn’t find a simple summary of the topic. I found a lot of complex discussions with different terms used by different “experts”. I am by no stretch of the imagination a lumber expert, but I’m very good at simplifying complex topics so that everyone can understand. As a result, this is a simple practical guide to help you understand how wood moves, what wood to buy, how to buy it, and where to buy it.
After you learn the basics from this video and article I encourage you to look at the bottom of this article for a list of links, books, and DVDs that will expand your understanding beyond the scope of this article. But this book is the best resource I have found so far: “Understanding Wood: A Craftsman’s Guide to Wood Technology” by R. Bruce Hoadley.
So let’s get started with the 7 simple steps below!
1. CHOOSE HARDWOOD OR SOFTWOOD?
Question: For your woodworking projects, should you choose a hardwood lumber like Hard Maple or Lignum Vitae? Or softwood lumber like Southern Yellow Pine or Red Alder?
Answer: That depends entirely on what you are building.
Some projects even require a mix of both hardwoods and softwoods, like a violin or a workbench. For example, violin makers use a soft Spruce for the soundboard and a harder Maple for the back, sides (ribs) and neck.
Many craftsmen of the past built the bases of their workbenches with less-expensive pine (softwood) and the tops & vices with hardwoods like beech or maple. The base of the workbench wouldn’t take a beating, so soft pine would work just fine. But the top of the workbench and the vice needed to be more durable.
Just use your brain to determine what type of wood you should use on different parts of your furniture.
BOOK: I have found this book to be an incredible guide to choosing different types of wood because it shows beautiful grain patterns & discusses woodworking uses for 400 different woods: “Wood Identification & Use” by Tery Porter.
JANKA WOOD HARDNESS TEST?
The lumber industry uses the “Janka hardness test” to test and rate common woods for hardness. The test involves pressing a steel ball to gauge how much pressure each wood species takes to push the ball half way into the wood. You can download my free PDF of the Janka chart here. {If you can’t open a PDF then install the free Adobe PDF Reader here.}
2. CHOOSE DIMENSIONALLY STABLE WOOD WITH VERTICAL END GRAIN
Unless you’re set on having a wildly figurative grain pattern on your furniture, you’re probably going to want to choose the most stable wood possible; especially if you are building fine furniture or woodworking hand tools that need great stability (e.g. hand planes, straight edges, or try squares):
Yes, wood moves when it dries and also with the changes in seasons and location (temperature and humidity). Wood doesn’t really get longer (thank goodness) but it does expand in width as humidity rises:
Even if you are using a beautiful (yet unstable) grain pattern on part of your furniture, it’s a good idea to use stable wood on the other parts. For example, look at an old wooden door. The panels usually have more decorative (less stable) wood, but the rails and stiles (parts of the frame) are usually very stable straight grained wood (don’t worry, I’ll clarify “straight grain” below).
So the key is to find boards that will be as stable as possible during those changes in humidity. But how do you get wood that has stable “vertical grain”? This is the question that confused me for awhile. The answer is: It all depends on how the wood is milled from the tree. This is what I’ll cover in step 3:
Thank you for taking the time to put this out there for us newbies and forgetfulls :)
Great article and it is booked marked so I can come back to it!
You’re welcome! Yes, I did spend a lot of time on it, so it’s nice to hear from grateful people like you.
Great job Joshua, lots of information in one place. It is startling to me how little many woodworkers understand about the materials we use so thanks for the great effort to add some clarity to a pretty cryptic industry.
You’re welcome Shannon! You’re right, there are so many people teaching different things about the same topics, which is why I’m trying to create consolidated and very simple resources. Glad to see your new shop is renovated.
Great post Joshua! Thanks for the links and and I’m looking forward to the follow ups.
You’re welcome Paul…so glad you liked it! Keep your comments coming!
Joshua,
Another good job clear and to the point. Keep up the outstanding work!
Matt Hill Cobbs Creek Va
Glad you enjoyed it Matt. I always love hearing from fellow Virginians!
Thank you for all of your extensive articles. I appreciate the time you took on putting this one together for the rest of us. Booked marked it so I can keep coming back when needed.
You’re most welcome Matt!
Great read!
If you are ever in the market for some furniture grade Beetle Kill Pine in or near Colorado, try (website address blocked)
Garrett, thanks for your comment. That’s cool that you have a mill. I had to block the website address however. If you’d like to advertise your lumber on my website (ad and a mention in this article), please feel free to reach out to me. We have a lot of people read this article on lumber selection. Happy New Year!
Suppose you you were in possession of, as I am, four Cherry logs ranging in size from 18″ to 24″ diameter by 12′ to 16′ in length and you need to instruct the sawmill how they are to be cut. Also suppose that you are a novice woodworker who intends to use the resulting lumber in undetermined woodworking projects. How would you instruct the mill to cut up the logs?
Wow, what a great problem to have Boris! If you can send some photos I’ll look at them. But unseen, I’d ask them to try to get some quartersawn boards out, and also some full width flatsawn boards. It just depends on how much wood you’ll get if you quartersaw it. It also depends on what you think you’ll build down the road. Some furniture pieces don’t need to be quite as stable as others. Good luck!
Very helpful information. Thank you for taking the time to explain this all. I’d like to know more about how to calculate how much wood one needs for a project and how to translate the knowledge at a lumber yard.
really awesome explaination! Thanks –
I would like to enter in the clamp giveaway –
Wow, good to know :) Now I know that I made some mistakes along the way…should have read this before.
Thanks for the tips on choosing lumber! I have some projects I want to get started on at my home, and I need to choose the right wood for the job. Thanks for mentioning to choose vertical end grain. I guess that will make the wood look more uniform and be more stable!
You’re welcome Burt! Make sure you share your project on the forum at WoodAndShop.com/Forum!
I am looking to buy some wood to build a swinging bench for our backyard. For this project, I want to make sure I find the right wood that will be durable, especially with all the different outdoor elements it will be facing. I didn’t realize that wood expands in width with humidity, but we will certainly have to look for stable lumber. Thanks for sharing!