Structural Flakeboards and Composites 



3047 



1-3/4" 



1-1/2" 



; 5/8" 



6-1/2" 



-1/2" 



Figure 24-57. — Composite I-beam with parallel-laminated hardwood veneer flanges 

 and flakeboard of mixed hardwood species. (Drawing after Koch 1982.) Webs must 

 be sufficiently thick to resist buckling before flanges fail. 



