Completion speed of fireproofing on steel members vary greatly on how many machines are being used. When doing your schedules do not assume that there will be as many fireproofing machines as necessary, especially if you are making a schedule for a big area. Verify the resources available first and then determine the duration, which of course applies to any task you can think of. You will need to have the fireproofing inspected before you can close the beams and columns, so plan accordingly.