How To Build a Shed

i want to design a truss, but the client don’t want any typified A-frame truss, instead he wants a box type i mean a lattice girder lean to type truss which is spanning 40′ , i hope you’d understand the problem he want a truss lean to type but it should be box lattice girder with vertical diagonal top chord and bottom chord type, for a span of 40′!!!! can any body help me to design this type of truss and i’m unable to design the truss also the truss can be using hollow box section, tube section, or angle sectin


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