On Apr 19, 9:17*am, Borrall Wonnell wrote:
I'm building an indoor climbing wall out of 3/4" plywood in a finished
space. The wall will be well-secured to beefed-up framing. *How do I
avoid rough edges/splinters, particularly at the butt joints between
plywood sheets?

My joint finishing options a
1) Do nothing, simply risk splinters (it's decent grade plywood)
2) Tape/mud as you would with drywall (I doubt it would hold up)
3) Leave a 1/8" gap and use some T-molding between sheets (not exactly
the look I'm going for).

Any other ideas? *Besides NOT building a climbing wall, that is? *

Taper the butt joint, coat with a slow cure epoxy, put on several
several layers of fiberglass, and let it cure hard. Next day, coat it
with Bondo, sand smooth and paint to suit. It ought to last you for
years done like that.

Joe