The final arrangements have all been set and registration is now open for the 2013 NELMA Annual Convention, to be head April 4 & 5 at the Marriott Lon...
NELMA offers IPPC ISPM 15 certification inspection services to facilities that produce wood packaging materials (WPM) such as boxes, crates, skids, pallets, etc. destined for use in exporting goods to the numerous countries that have implemented the International Standard for Wood Packaging. Check out the details under the "Inspection Program" tab!
Design Values & Span Tables
The following is provided to assist architects, engineers, and builders in specifying and designing with Northeastern lumber products. While the information was developed with the lastest available information, please consult with a design professional for your specific buidling project needs.
Base Design Values (All Northeastern Species)
Softwood Lumber - 2" to 4" thick by 2" and thicker
Hardwood Lumber - 2" to 4" thick by 2" and thicker
Beams and Stringers - All species, 5" & thicker and width 2" greater than thickness
Posts and Timbers - All species, 5" by 5" and larger with width not more than 2" greater than thickness
Size Adjusted Design Values by Species:
Spruce-Pine-Fir South (SPFs)
Span Tables - Spruce-Pine-Fir South (SPFs)