I'm looking for a dozen or so of the large concrete square pavers. About 16" square, 1.5" thick.
https://www.homedepot.ca/product/oldcastle-slab-400x400mm-gray/1000402173. New: $9.77
Anything between 1' square and 2' square would work. Rounds would also work.=
They don't have to be pretty.
Thanks,
Jim Moloney
604.534.1635