Graphical Construction Glossary >> Roofs and roofing. >> Roof Trusses >> Pratt girder

Pratt girder
A girder or truss with horizontal chords and the diagonal members pointing down and towards the center in the same pattern as a Pratt truss

pratt girder

The Pratt-girder above was fabricated with simple steel section, MS 60x60x5 angles (approx.) and 12mm rods. A similar job today would be to use universal beams to save on labour costs.

If the UB sections are not available then the pratt-girder is still a viable option for supporting this type of roof.

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Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
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