Decking – Pressure-Treated Wood

PT1

Advantages: 

  • Economical and plentiful
  • lasts around 15 years when properly treated with a water repellent every two years.

PT3

Disadvantages:

  • The dominant PT species, Southern yellow pine, checks and splinters as it dries.
  • Left untreated, some PT turns muddy gray (use a semitransparent stain or clear sealer).
  • PT preservative chemical residue may cause health problems. If you’re doing the building, wear a dust mask. And be sure to wash yourself carefully and your clothing separately after working.

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