Manufacturing Jobs

Wood and aluminum have similar strength to weight ratios. The greater thickness per given weight makes wood stiffer and more damage resistant in smaller scantlings. Aluminum is (with proper corrosion protection) lower maintenance and can be manufactured in longer lengths than are available in clear lumber. Both wood and aluminum can be machined with ordinary tools, but wood is easy to glue; welding aluminum is a specialized trade, the work has to be done in windless conditions so the weld can be bathed in argon gas to prevent corrosion from infecting the weld.