Sue's Professional Artist
Workshops Step 4 : Make Your Joints
Using a tenon saw, carefully cut the horizontal mark as shown above.
Now use a chisel to cut-out the rest of the joint as shown above.
Now we need to recess the central support strut. First mark the joint in the exact centre of both long edge pieces, using the central support strut as a template.
NOTE : You only need a central support strut for large canvases (larger than 3' x 3')
The marked recess should look like this.
Saw the two horizontal marks - only down to the half-way line!
Carefully chisel out the wood from the centre marking. It's a good idea to hold the wood securely in a vice for this.
The finished recess should look like this.