Screwing down toilet flange spacers with metal flange still on
You need a "Set-Rite Flange Extender Kit" This can solve the entire problem. I believe in US they are available in Lowes, Menards and Ace Hardware. In Canada harder to find. Best bet is a larger RONA store or an ACE Hardware if you can still find one.
See this site &lt; https://set-rite.com/frequently-asked-questions/ >