Oriented Strand Board (OSB) is the most used structural board for timber frame buildings in many parts of the world (e.g. USA & Europe) having replaced plywood and particleboard. SimBoard® is made of 100% fresh pinewood from thinning of PEFC/FSC® certified sustainable forests.  The strands are glued together with formaldehyde-free binders.  Because of this SimBoard® OSB can also be used for food packaging. Particleboard is made from small wood particles and sawdust.  Call your local Simmonds Lumber Sales ® office for details.