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Bedroom Window Requirements
What are window requirements (size, location) for a bedroom?

Per the Massachusetts State Building Code 780 CMR 3603.10.4 (, for 1 and 2 family houses: Sleeping rooms shall have at least one operable window or exterior door approved for emergency egress or rescue in each such room. The units shall be operable from the inside to a full clear opening without the use of a key or tool. Emergency escape windows, under 780 CMR 3603.10.4, shall have a sill height of not more than 44 inches above the floor.

Per 780 CMR 3603.10.4.1, all emergency escape windows from sleeping rooms shall have a net clear opening of 3.3 square feet. The minimum net clear opening shall be 20 inches by 24 inches in either direction.