So I am trying to figure out what will be the best material to use for a somewhat unique project. My instinct is steel beams but my background is lumber, timber, and huge rough cut lumber. Here’s my goal.
25′
o—–o——o—–o o = Columns approximately 8′
| | – = Beam sitting on or tieing in each column
| W E | 25′ | = Beam sitting on or tieing in each column
| |
o—–o——o—–o
Simple enough but then the numbers come into it the span from the 2 columns of 25′
The only load that will be on this is a gable roof running from W to E which is intended to support solar panels. I have seen these similar structures but I don’t know what they are called. I always called them outdoor pavilions. In the Army we had some that spanned 80′ across with only 4 corner posts.
The photo I’m linking is the closest thing I’ve found but not large enough. The Orientation of the photo matches the diagram I built above.
Replies
roof trusses seem the solution to me. Have them specified to hold normal loads and the solar panels.
then the issue is the 25/3 foot span between columns.
the columns also will have some challenges, since you are expecting them to resist not only the vertical loads, but wind loading of the roof, and perhaps impacts from whatever you move in and out from under it.
A garage would be straightforward to calculate, but for spaced columns, you probably want to consult an engineer, considering the location and desired materials.