On 03/07/2019 20:14, Sus wrote:
I have a simple square pergola in my backyard.Â* It's made of 6" x 6" beams
that are lap jointed.Â* I want to hang 2 swings on each of the two
beams.Â* Is
there a weight restriction given they have lap joints? the swings would be
wooden and be able to hold an adult.

It depends on how long the lap joints are, what is holding them together
and if the lap is vertical or horizontal.