I’ve got a block foundation, with a crawl space that I want semi-outside access into (From garage) – Right now access is from an inside floor panel. I want to cut out an access hole in the blocks underneath the rim joist.
I want to make it approximately 2′ wide. Right now there is a 2×6 sill plate, and a 2×12 rim joist above where I want to make access. Will I have to worry about additional support, or will this suffice? This is on a one story ranch-style house, so there shouldn’t be terribly large loads, plus it will be on the gable-end of the house, so it shouldn’t have too much of the roof load.