Our inverter is located in the basement, I want to mount a fire extinguisher next to it and don’t want to put a screw into the transfer switch or anything else mounted on the battery compartment side of that wall. Does anyone know the thickness of the plywood?

Our inverter is located in the basement, I want to mount a fire extinguisher next to it and don’t want to put a screw into the transfer switch or anything else mounted on the battery compartment side of that wall. Does anyone know the thickness of the plywood?

On my '13 I drilled a hole for a cord from the battery compartment into the garage & it was 3/8-1/2" OSB on the garage side mounted to 1 1/2 to 2" aluminum studs with only the fabric on the battery side.
Hope this helps!