James Hardie siding in Bloomfield Twp
The storage room located behind the garage door had a piece of plywood on hinges as a door.
Our solution to that problem was to build twin doors from 2 pre-hung exterior steel entry doors. After installation, we proceeded to skin these double doors with 3" solid PVC tongue & groove beadboard and solid PVC trim. That door is so heavy that we had to beef up the hinges to accommodate the weight.
Looks like add-on shed