AASHTO - American Association of State Highway and Transportation Officials
Latest
M 168-2007
Scope
This specification provides a compilation of specifications covering commercial grades and species of lumber and other wood products for highway construction as indicated below. More detailed requirements will be found in the various specifications cited for specific products: Lumber@ Structural glued laminated timber@ Piling@ Posts@ and Structural composite lumber. The values stated in SI units are to be regarded as the standard.
M 168-2007 history
2007M 168-2007 Standard Specification for Wood Products
1996M 168-1996 Standard Specification for Wood Products