Hi can anyone please advise me size, material and design of Beams/ rafter /joist for following slanting roof with high load because of sand filling. We are doing for a sound proof room. kt2_007 a3 1_20 elev-1.jpg Measurement : Length 6.6 M Width 3,6 M Height 3 M at one end and 2,6 meter at another e...
