Maybe the best solution would be some 9mm ply to screw over the existing?
there is no issue with ordering what is "needed" for the club, both Steve and Dianne will fully support any spend which is necessary to keep the club going.
If we want to do this, I have a chop saw I could bring to make trimming to size easier. I'm happy to meet up one day when we are all free and get this job completed.
