Crafting Sliding Dovetail Joints

Article 143: Crafting Sliding Dovetail Joints

By: A Woodworker Obsessed With Tight Fitting Joinery

Sliding dovetails are strong, elegant joints perfect for attaching shelves or dividers to carcasses.

What You’ll Need

• Router with dovetail bit

• Straightedge or router track

• Marking gauge

• Chisels

• Test boards

Steps

1. Mark and Cut Groove

   • On the carcass side, route a dovetail groove. Start shallow and creep up to full depth (typically ⅜" deep).

2. Cut the Tail

   • Use the same dovetail bit to shape the mating board’s end (usually ¾" stock). Make several passes on the router table.

3. Test Fit

   • The fit should be tight but slide in with pressure. Use a mallet if needed.

4. Glue and Insert

   • Apply glue only at the end to allow wood movement.

Measurements Example

• Groove width: ¾" at top, ½" deep

• Tail thickness: ¾" stock, tapered to fit

Diagram – Joint Profile

Side View:

   ┌────────────┐
   │            │
   │  Grooved   │
   │  Carcass   │
   │     |      │
   │     V      │
   │    /_\     │ ← dovetail groove
   └────────────┘

   Inserted Piece (Tail):
      /_\
     |___|