I’m trying to design my own 24’x17’ shed.
I’ve been using forte web and whatever span tables. But I’m still unsure how to design the roof so as to provide as much ceiling height as possible.
Right now im planning a 6/12 with 2×6 rafters. I’m trying to determine the needed size of a ridge beam if I were to forgoe any rafter tie and/or collar tie.
Can someone one point me to some resources ?
Replies
I just built a 13x23' shed roof cabin. With a shed roof the weight is carried down the long walls so you can have the inside open and a cathedral ceiling. You would need to size the rafters properly for the 20' span.
My lower wall is approx. 10' high and the taller wall 14'. The roof pitch is 4:12. You could make the walls taller or increase the roof pitch to add more loft space.
Hope this helps!
Bill
It's not clear why you would use any trusses.
I would do a four gable face approach with valley rafters. You can’t truss it though. You’d have a main beam going across the top, on a 24’ span you’re looking at a double 24” lvl. You hang the crossing drop beam off that, lower, and then tie in your four valley beams. I just did a 26x26 garage and my goal was 100% utilization of my upstairs space. That gave me something like a 16’ ceiling upstairs. I had my structural engineer draw out how we should attach those wonky angles, which we did. Your valley comes down from beam to a 4’ high wall on the corners of your gable. This is 26x26, but you can shrink the depth or width.
Rafter ties every 6' aren't a bad option for a shed. They give you something to put the lights on.