The plates (both eve and purlin) are also very long and will require multiple scarf joints in each plate (8x10s). Seems that placement of these scarf joints is best over a knee brace rather than over a post. But once again, is there a certain scarf joint that would work best for plates?
Again doing a long building usually requires the plates to be flown up by crane to set down onto the top of posts and braces.
Thus the scarf should be one that can easily join together vertically.
The one I use is called a "halved and bridled scarf" as shown in drawing 19 in the scarf section (chapter six) of the Historical American joinery book. Here:
https://www.tfguild.org/store/historic-american-timber-joineryThis is a good scarf joint and can be assembled up at the top of the posts.
Good luck with your project.
Jim Rogers
