C Shaped Roof Purlins/ Wall Grits help in resisting part of the longitudinal loads that are applied on the building such as wind and earthquake loads. C Shaped Roof Purlins/ Wall Grits provide lateral bracing to the compression flanges of the main frame members thereby increasing frame capacity. These Roof Purlins/ Wall Grits are available in a thickness range of minimum 1.2mm and maximum 3mm. C Shaped Roof Purlins/ Wall Grits are cold rolled formed from steel with a minimum yield strength of 345mpa or 50,000 PSI.