Your question is unclear. You have not mentioned whether the room size is in feet or meter. Also, quantity of steel varies for different purposes. You need to specify the type of room, whether there is any floor over the slab and the purpose of the room.
What is quantity of 10mm steel for roof slab of 12 x 12 room? Please tell me about the quantity of 10mm steel for 12 x12 room for its roof slab.
What is quantity of 10mm steel for roof slab of 12 x 12 room?
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