$ 0 0 https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/138355/want-to-count-the-effect-of-purlin-in-ped-steel-shed-design-with-out-draw-the-purlin-into-the-model/418819#418819Dear sir, As per above discussion can we take 2.6 m for Ly?? because i see mostly designer consider this .