Halving Joint

Halving joints are used in frame construction where simplicity rather than optimum strength is the prime consideration. Wherever an easy method of uniting two rails or batons anywhere along their length is required, these are a practical option.

FIG 4.16

Making a halving joint.

1 Lay one rail on top of the other at 90° and draw a line on both sides of it. Use a try square to make sure these lines are square, and then project them around all four sides. On the edge, use a marking gauge to find the centre and then scribe a line between the previously drawn lines. Cut down the vertical lines with a tenon saw at the edges of the housing as far as the centre line, and make a number of further cuts to make it easier to remove the waste.

3 For the other part of the halving joint, mark the lines for the joint in the same way as before, and then remove the waste with a tenon saw.

FIG 4.17

Making a dovetailed, halving joint.

4 Check the joint for fit before gluing.

3 Mark the housing for the tail in the same way as the tail itself. Remove the waste with a bevel-edged chisel using a slicing action.

4 Check the joint for fit before gluing.

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