Shaping concave surfaces?

[glenn bradley]

I think Derek has your answer but, if you really want to cove them.

GnG Low CoD (228).jpg . GnG Low CoD (237).jpg

[Philipp Jaindl]

I'll fully agree with Derek here, worked on a few Benches and Loungers (i hope thats the right word) over the years and always used flat slats. Fitting alongside the desired curvature is mostly done via Slat cross section, at most you'd want a convex upside for water to run off.
For outdoor Furniture you really dont wanna have any truely flat surfaces, which is usually not much of a problem with Flat slats due to Seat and Backrest having an angle to them anyways.

Regards Philipp

[Mike King]

Well, since Dennis posted a picture of his coopering plane and project, I feel the need to post mine.
Attachment 428205

You've got a ways to go! I also made a coopering plane that I used on my coopered chair backs.

Mike