The Halved Lap Splice joins two similar components in their length, whilst maintaining the same cross sectional area throughout.
The strength of the joint is almost entirely down to the long grain to long grain glue surface area, and is proportional to the length of the lap.
The length of the lap is then knifed across opposite faces of the components.
Before sawing, a knife wall is revealed by paring from the waste into the knife line.
The shoulder is sawn down to the lap line,
The saw is 'aimed' so as to follow the lines on both the end and one edge, sawing at an angle,
The joint is then glued, and clamping pressure applied across the faces.
Now watch the video: