Profiled building construction beam has a plain central web linking two outward facing heads with grooved profiled cross section

摘要

The profiled building construction beam has a slim central web (14) with profiled heads (12), facing outward at each end. Each head has a base (18) at right angles to the web and outer ribs (2) to form two groove profiles (16), separated by a central rib (20). The outer ribs have ends turned inwards while the central rib has a grooved outer profile (28).