Howdy. I'm new here. Have a question on what tube size our monitor barn should take. Hope some can chime in. Thanks

Were building a monitor barn. It's a weld up. Will be welding to weld plates set in the concrete footings. Will be gravel floor to start. Snow load is 25 lbs and wind load is 110 mph. Center part of the monitor is 30' wide. 4/12 pitch. Posts are to be 27' tall 8' apart. lean to on both sides are 18' wide x 16' tall. 3/12 pitch.

Now I know this isn't as simple as it looks to figure. That is a tall post, but it is also supported by the lean to trusses welded to it as far as a stiffener goes. Yes it's more weight, but the wedge design on the mono truss does offer vertical strength to a point.

I don't need the building engineered, but I want it to be strong enough to last.

Thanks