Wood joint selector
There are dozens of named joints. Most woodworkers use the same five for 90% of work. This selector scores 16 common joints against your application and tells you which one is right, why, and what the alternatives are.
Selector
The five joints that handle 90% of work
If you're starting out, learn these in order:
- Butt joint with reinforcement — screws, dowels, or biscuits. The "I have a weekend to build this" joint.
- Rabbet joint — one piece has a notch, the other sits in it. Excellent for cabinet backs and shelves.
- Mortise & tenon — the workhorse for legs-to-rails. Strong, classic, slightly slower.
- Dado / groove — for shelves and panel inserts. Easy on a table saw with a dado stack.
- Dovetail — for drawer corners and show-piece joinery. Worth learning for visible joints.
Everything else (box joints, finger joints, biscuit, pocket-hole, spline, half-lap, bridle, etc.) is a refinement or a specialty. Knowing the five above covers nearly every hobbyist project.
The "best" joint isn't always the right one
A dovetail joint is gorgeous and strong, but cutting it takes 4× the time of a rabbet-and-screw joint. For a shop cabinet that nobody will see, the screw joint is the better answer. The selector weights strength and skill; you have to weigh time and aesthetics for yourself.
Limitations
- This is a one-joint-at-a-time picker. Most projects need several joints; this only picks the right one for the corner you describe.
- Doesn't model joinery-specific defects (e.g. dovetail pin angle, tenon shoulder length).
- Strength scores are relative, not engineering values. Real joint strength depends on glue, fit and wood.
- Doesn't consider CNC or laser-cut joinery; assumes hand-cut or shop-cut with traditional tools.
Frequently asked questions
Are pocket-hole joints good enough?
For most cabinet carcasses, shop furniture and utility builds, yes — pocket holes are fast, strong in shear, and forgiving of imperfect cuts. They are weak in tension (a force pulling the joint apart), so they fail at chair joinery or anything racked. The selector accounts for this.
Is biscuit joinery still relevant?
Yes for edge-to-edge glue-ups (where a biscuit keeps things aligned during clamping) and as reinforcement for miter joints. For corner joinery, dowels or pocket holes are usually faster. The Domino (Festool's floating tenon tool) has replaced biscuits in many shops.
When is a dovetail actually the right call?
Drawer corners (where the joint is visible and racking forces are real), jewellery boxes and any piece where the joint is part of the visual story. For hidden structural joints, a stronger mechanical joint (mortise & tenon, dowel) usually wins.