11 Types of Woodworking Joints

Carpentry Joinery for Strength and Aesthetic Appeal

Photo of Kelly R. Smith   by Kelly R. Smith

Homemade woodworking putty
Homemade woodworking putty
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There are many types of woodworking joints to choose from. Which to use on your current carpentry project? In my opinion, there are three main considerations.

  • Joint strength is the most important. Some things you build will be more subject to wear and tear than others.
  • Do you have the right shop tools and skills? Some joints, like the dovetail joint, can be made with a jig or with hand tools. Skills? You can always learn them.
  • Aesthetics, or the beauty of a particular joint should be considered after you have satisfied the first to points.

Types of Woodworking Joints

  • Pocket Hole Joinery. This is basically a butt joint with pocket hole screws.; it’s very popular for furniture building and repair. Two drilling steps are called for. First, counterbore the pocket hole itself. This is where the screw head is contained. Second, drill a pilot hole so the centerline is the same as the pocket hole. This allows the screw to go through one piece and into the adjoining piece. You use two different sized drill bits for this operation in most cases although step-bits are sometimes used. Kreg is the most popular brand of jig for this joint.

A dovetail joint
A dovetail joint

  • Dovetail Joint. This is a very strong woodworking joint. It’s known for tensile strength (resistance from pulling apart). The woodworking dovetail joint is often used to connect the sides of a drawer to the front. A number of pins are cut to extend from the end of one board and lock with a number of tails cut into the end of another board. These pins tails have a trapezoidal shape and can be cut by hand or with a jig. I use a Porter Cable dovetail jig. Once glued up, your joint is permanent without any mechanical fasteners. See the video below where I show you how to make glue that matches your project wood perfectly.
How to make homemade wood putty
A woodworking butt joint
A woodworking butt joint
  • Butt Joint. The Butt Joint is a simple woodworking joint. It joins two pieces of stock by just butting them together. The butt joint is the simplest joint to make so in that respect it might be the correct choice if you don’t have many tools at your disposal. It is also the weakest wood joint unless you use some form of reinforcement (like dowels, which can add a decorative touch). Otherwise, it depends upon glue alone to hold it together. Because of the orientation of the pieces, you have an end grain to long grain gluing surface. The resulting wood joint is weak, as you might expect because glue alone doesn’t provide much lateral strength.
  • Biscuit Joint. A biscuit joint is nothing more than a reinforced Butt joint. The biscuit is an oval-shaped piece. Typically, a biscuit is made of dried and compressed wood, such as beech. You install it in matching mortises in both pieces of the wood joint. Most people use a biscuit joiner to make the mortises. Accuracy is important for the mortises. You design the biscuit joint to allow flexibility in glue-up.
A double biscuit joint ready for glue-up
A double biscuit joint ready for glue-up
Biscuit joiner for woodworking
Biscuit joiner for woodworking
  • Bridle Joint. This is similar to a mortise and tenon; just cut a tenon on the end of one piece and a mortise into the other piece to receive it. Cut the tenon and the mortise to the full width of the tenon piece. The result is only three gluing surfaces so it is imperative to use a very high-quality woodworking glue. A mechanical fastener or some sort of through-pin is required.
A bridal joint
A bridal joint
Finger joint or box joint
Finger joint or box joint
  • Finger or Box Joint. This one is much like a dovetail joint except that the pins are square and not angled. It is easy to make if you know how to use a table saw or a wood router with a jig. The Porter Cable 4216 12″ Deluxe Dovetail Jig Combination Kit comes with a box joint template. This finger/box joint was invented as a better way to construct simple boxes for produce from field to market. That, my friends, is capitalist ingenuity in action.
A dado joint
A dado joint
  • Dado Joint. OK, funny name but a dado is simply a slot cut into the surface of a piece of wood. When seen in a cross-section, the dado has three distinct sides. Cut a dado perpendicular to the grain of the wood. Technically, it’s different from a groove, which is cut parallel to the grain. This joint is a good choice for bookcase shelves.
A typical lap joint
A typical lap joint
  • Half Lap Joint. With the half lap joint, remove material from each piece such that the finished joint results in the thickness of the thickest piece. But in the majority of half lap joints, both pieces are of the same thickness. Just remove half the thickness of each piece.
A mortise and tenon joint
A mortise and tenon joint
  • Mortise and Tenon Joint. This is a very strong woodworking joint. In the majority of situations its used to join two pieces at a 90° angle. One end of a piece fits into a square hole in the other piece. The end of the first piece is the tenon; the hole in the second piece is the mortise. The tenon is glued in but if you require additional strength, you can also pin it. This is sometimes done for decorative reasons. It is a generally accepted practice to make the tenon about a 1/3 the thickness of the piece. The mortise can be cut by removing as much wood as possible with a plunge router then cleaning up the edges with a chisel.
A rabbet joint
A rabbet joint
  • Rabbet Joint. This a recess that’s cut into the edge of a board. Seen in a cross-section, the rabbet is two-sided and open to the end of the surface. It can be used in the back edge of a cabinet to allow the back to fit flush with the sides. It can also be used to insertion of a glass pane in a picture frame.
Tongue and groove joint
Tongue and groove joint
  • Tongue and Groove Joint. This is another very strong joint because of all the open grain on both pieces of wood. It’s used in many applications. For example, to make wide tabletops out of solid wood. Other uses include wood flooring, parquetry, paneling, etc. You can cut the tongue and groove in a number of ways. An effective way to make this joint is on a router table.

Knowing these 11 types of woodworking joints, you’ll most likely find one or more to fit the needs of your woodworking project.

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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at Considered Opinions Blog where he muses on many different topics.

Window Blind DIY Wand Replacement

Why Settle for Replacement Blind Components? Put Your Woodworking Skills to Work.

by Kelly R. Smith

DIY Venetian blinds wand crafting and replacement
DIY Venetian blinds wand crafting and replacement
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Things like window blind wands get a lot of use. Not rough use usually but they are usually made very cheaply and are bound to break at some point. You’ve got two choices. First and easiest is to buy a replacement blind wand. My preferred choice is to make my own. That way I know it is sturdy and I can match the finish to the window casing. So, consider this short tutorial just another woodworking tip.

The wand usually connects to the blind assembly via a small plastic nub with a hole in it. The wand has a hook on the end that fits through the hole. I have worked two possible scenarios.

  • The plastic nub is intact.
  • The plastic nub broke.

Use a Wooden Dowel for the New Wand

Dowels are available in all hardware stores as far as I know. At Home Depot they are available in pine and oak, in various diameters. I usually go for the pine; it is cheaper and I’m going to stain it anyway. These dowels are smooth finished so all you need to do is cut it to your desired length and sand the ends and smooth out the sharp end edges.

To work on the dowel, I use a Bessey drill press vise with a rag wrapped around the dowel so as not to mar it. The crosshairs on the end of the dowel are for drilling the connection hole.

Dowel in the Bessey drill press vise
Dowel in the Bessey drill press vise


Finishing and Attaching the Connector

When the plastic nub is intact, you just need a cup hook or simply make a hook out of wire (like a metal coat hanger) using needle-nosed pliers. If the plastic nub is broken off you will need to drill a hole in the end of the dowel and glue it into the nub. I used Locktite GO 2 Repair Xtreme. While the glue is setting up I kept everything together with a piece of electrical tape. This is why I didn’t use polyurethane Gorilla Grip glue; the foaming, expansive curing action would push things apart. Regular wood joinery techniques don’t really apply here.

Use the finish of your choice. Here I used Minwax Penetrating Stain. Later, after a couple of days I’ll apply a high-quality furniture wax.

Finishing with Minwax Penetrating Stain
Finishing with Minwax Penetrating Stain


Blinds wand with a hook connector
Blinds wand with a hook connector

That’s about all there is a window blind DIY wand replacement. It doesn’t even have to be broken. It is a good way to give your window dressing a custom look on a budget and a little spare time.

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Visit Kelly’s profile on Pinterest.

About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

Biscuit Joiner; Why You Need One for Woodworking

by Kelly R. Smith

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A Ryobi biscuit joiner on a router table
A Ryobi biscuit joiner on a router table

Granted that the biscuit joiner is not a power tool that you use everyday on your woodworking projects. It falls into the category of go-to tools when nothing else will do the job so well. On projects that require mating planks, this tool is invaluable. On some projects, just gluing them up and clamping them is sufficient but on others a stronger bond is required. And why not err on the side of caution? The right tool is just as important as adequate shop lighting.

For years I relied on dowels to do the job. That worked, but getting that precision can be difficult. Drilling the holes at the exact angle and in the exact location can be dicey, especially when using a hand-held drill rather than your drill press. This is where the biscuit joiner comes into its own.

Using Your Biscuit Joiner

For the sake of argument, let us assume that we are joining several boards to make up a table top.

  • Biscuits can “telegraph.” This means that as the glue dries, it can warp the surface plank wood down towards the biscuit. To avoid this minor imperfection in the end product (you’re the only one who will notice, but still), don’t cut your biscuit slot in the exact center of the planks, rather, a bit lower towards the bottom of the finished product.
  • Biscuits don’t add a lot of strength. So the argument goes. Some carpenters use biscuits simply to assure themselves that the planks will stay aligned as the glue dries. I’m from the other camp that believes that they do add a lot of strength, especially when the end product comes under stress because the length of the biscuit distributes the load better than a cylindrical dowel..
  • You can add biscuits for additional strength after the glue-up on 45 degree corners. Use your joiner as a plunge tool after the glue has dried. For example, you might do this on the underside of a picture frame after you remove your 45 degree clamps or spring clamps. Plunge the slot, glue-up and add the biscuit, and use your belt sander to level it up later.
  • Bring the motor up to full-speed before engaging the joiner. Easy, cowboy.

So, do you really need a biscuit joiner for your woodworking projects? The short answer is “no,” but the long answer is, “yes, because it will make your life so much better and your range of carpentry skills broader.”

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About the Author:

Photo of Kelly R. SmithKelly R. Smith is an Air Force veteran and was a commercial carpenter for 20 years before returning to night school at the University of Houston where he earned a Bachelor’s Degree in Computer Science. After working at NASA for a few years, he went on to develop software for the transportation, financial, and energy-trading industries. He has been writing, in one capacity or another, since he could hold a pencil. As a freelance writer now, he specializes in producing articles and blog content for a variety of clients. His personal blog is at I Can Fix Up My Home Blog where he muses on many different topics.

How to Make Homemade Wood Putty

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Homemade Wood Putty
How to make homemade wood putty

In a perfect world our woodworking projects wouldn’t require wood putty, filler, or grain filler. But wood is a natural product so some defects are inherent and as woodworkers we are prone to small mistakes. That’s where this homemade wood putty (and wood filler) comes in.

And if you are concerned, this is a small way to build green since you already have the sawdust and you are not paying for the production and shipping of little metal putty cans.

What You Need to Make Wood Putty

This is a simple procedure and the results are more accurate and less expensive than commercial putty and filler products. Here is what you will need.

  • Sawdust from your woodworking project
  • Elmer’s glue
  • Popsicle stick or something similar to mix with
  • A piece of scrap cardboard

The Process

This short video demonstrates the process; it’s not complicated and you just have to work the mixture until you achieve the desired consistency.

I hope this woodworking tip on homemade wood putty has helped you. Feel free to leave any comments that improve the process or just prove helpful.


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