Timber Facts



  • Timber is useful wood. Lumber is a North American term for timber once it is sawn or split.
  • Lumberjacks are people who cut down trees using power saws or chainsaws.
  • Round timbers are basically tree trunks that have been stripped of their bark and branches and cut into logs.
  • Round timbers are used for fencing and telegraph poles or driven into the ground as ‘piles’ to support buildings and quays.
  • After the timber is sawn and trimmed, it is stacked in the timber yard to dry.
  • Lumber is boards and planks sawn from logs at sawmills. At least half of lumber is used for building.
  • Before lumber can be used, it must usually be seasoned (dried) or it will shrink or twist. Sometimes it is dried in the open air, but more often it is warmed in a kiln or treated with chemicals.
  • Sometimes planks are cut into thin slices called veneers.
  • Plywood is three or more veneers glued together to make cheap, strong wood. Chipboard is wood chippings and sawdust mixed with glue and then pressed into sheets.
  • Softwood lumbers come from trees such as pines, larches, firs, hemlocks, redwoods and cedars.
  • MDF or medium density fiberboard is made from wood fibers glued together.