Home Renovators ???? Make cuts by snapping chalk traces to mark and then rating it which has a utility knife as deep given that the blade will penetrate. Then snap the sheet just like you narrow drywall. Note: From time to time furring down Portion of or the whole ceiling https://medium.com/@a.l.e.xzhi.gl.at.y/luxury-living-below-elevate-your-toronto-home-with-a-basement-renovation-fit-for-royalty-18340e425584