This document discusses various types of manufactured timber boards. It describes that manufactured boards are made by gluing wood layers or fibers together into large, consistent sheets. Examples of manufactured boards include plywood, medium density fiberboard (MDF), particle board, blockboard, and chipboard. The document compares properties of these different board types such as their composition, cost, strength, and common applications. Plywood is made from thin wood veneers glued in alternating directions while particle board uses wood chips and MDF uses wood fibers. These manufactured boards are often cheaper than solid wood but may require veneers. The summary provides an overview of the key board types and their basic properties discussed in the document.