door is 4780mm wide,what thickness plywood should i use?
Welcome to the Bunnings Workshop community @lb45. It's fabulous to have you join us and many thanks for your question.
Could we please have some more information about what your project entails? Are you intending on covering over the existing door or are you removing it and re-skinning the frame of the door? Is the door damaged at the moment or are you wanting to add plywood so you can't see the panelling?
Mitchell