LYSAGHT^® ZED & CEE Purlins and Girts

LYSAGHT® ZED SECTIONS
LYSAGHT® Zed section feature one broad and one narrow flange sized so that two sections of the same size fit together snugly, making them suitable for lapping.
Continuous lengths of purlin result in better economy, but lapping provides two thicknesses of metal over interior supports. Lapping increases the strength of the sections where bending moments and shear are at a maximum, thus improving the load capacity and rigidity of the system.
LYSAGHT® Zed section may be used over simple spans. For shorter spans they may be used continuously over two or more spans without lapsthus producing reduced deflection compared with simple spans. But it does not give the strength of a fully lapped system.