Does a Class 10A building need two doors?

I want to use a shed to teach, it is steel construction 9meters x 9 meters and has only one door .Is it legal ? or:I want to use a shed to teach, it i

I want to use a shed to teach, it is steel construction 9meters x 9 meters and has only one door .
Is it legal ?

or:I want to use a shed to teach, it is steel construction 9meters x 9 meters and has only one door .Is it legal ?

or:do u want to teach or build a house? I think instead of wasting ur time in thinking of the room construction, concentrate on ur ways of teaching. that would help better

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