I'm looking at replacing a basement 2 x 6 load bearing wall. The center beam on this 2 story brick home is 3 2 x 8 's sandwiched together supported by the 2 x 6 wall on 16 inch centers. I want to open the basement for a large media room. The length of wall I want to replace is 24 feet. I expect 3 steel post necessary with a footer being installed for each of them. I'm sure the joints of the 3 2x8's beam are staggered but because one side of the basement is finished and on the other the air ducts are blocking my view I don't know the joint locations yet. Any input on the post footer sizes or if an 8 foot span under these conditions would be suitable ?