Predrill to avoid hitting the screws that hold the half-lap joint together.
For extra strength and longevity, we assembled it with half-lap joints, screws and exterior glue.
Cutting accurate half-lap joints is the trickiest part of this project.
T required a Lansing cabinet shop to mill the boards with a rabetted, half-lap joint
Because each half-lap joint
is assembled with one piece upside down, you need to flip either part A or part B over (not both), and flip over one part C, before you can cut the beveled ends.
You can do this by fixing an additional piece of post using half-lap joints
and galvanised screws.
Then set up a simple jig (Photo 12) to use with your router to make the half-lap joints
on the ends of all the stile and rails.