What PSI Do You Need to Clean Timber Decking Without Splinters?
Start at around 500–600 PSI when pressure washing timber decking, and use the lowest pressure that removes the dirt. For sound timber, 500–1,200 PSI is a useful working range, but there is no single setting that guarantees a splinter-free result. Timber species, board condition, nozzle choice and distance all affect the risk of damage. For Canberra decks exposed to strong sunlight, dry summers and winter frost, checking the condition of the boards matters more than ch