Pressure washing can be an effective method for cleaning outdoor furniture, but its suitability depends entirely on the material and proper technique. For durable materials like aluminum, wrought iron, and some plastics, pressure washing with appropriate settings works well. However, delicate materials such as wood, wicker, and resin require caution.
When pressure washing furniture, always start with the lowest pressure setting and maintain a safe distance of at least 12-18 inches from the surface. Use a wide-angle nozzle (40-degree pattern) rather than a concentrated stream to prevent etching, gouging, or removing paint. Test on an inconspicuous area first to ensure the material can withstand the pressure.
For wooden furniture, avoid pressure washing unless absolutely necessary as it can splinter the wood and force water deep into the grain. Instead, use gentle cleaning solutions and soft brushing. Similarly, wicker and rattan furniture can easily unravel under high pressure.
Always move the nozzle in consistent, sweeping motions rather than focusing on one spot. After cleaning, allow furniture to dry completely before using or applying any protective sealants. Regular maintenance cleaning with mild soap and water is often preferable to aggressive pressure washing for preserving your outdoor furniture's longevity.