How to Pressure Wash a Deck

Pressure washing can be an easy, efficient way to deep clean and brighten up an old, tired-looking wooden deck. However, without proper preparation and technique, pressure washing too harshly could damage the wood. So how to pressure wash a deck properly? This guide is all you need. Let’s dive in to learn more.

How to Pressure Wash a Deck?

What to prepare:

• A pressure washer (minimum 2000 PSI)

• Deck cleaner or detergent

• A scrub brush

• A spray wand

• An extension cord

• Safety glasses, and work gloves

Step-by-step instructions:

• Inspect the deck for any loose boards, nails, or screws and repair or replace them before pressure washing. Check the railings and posts as well to ensure they are securely fastened.

• Remove all furniture, planters, rugs, or other items from the deck. Clear the deck of any debris like leaves. Sweep the deck to remove loose dirt and grime.

• Test your pressure washer in an inconspicuous area to check the pressure. Adjust the pressure dial to a lower setting, around 2000 to 2500 PSI. Higher pressures can damage the wood.

• Apply the deck cleaner with a scrub brush or broom and let it sit for about 5-10 minutes as directed. Scrub any extremely dirty areas.

• Rinse the deck thoroughly with a garden hose to remove all dirt and debris before pressure washing.

• Attach the spray wand to your pressure washer. Hold the wand at a 45-degree angle about 3 to 4 feet from the deck surface. Use even, overlapping strokes.

• Start at one corner of the deck and work your way across using the palm of your hand to guide the wand. Concentrate higher pressure on dirtier areas but do not stay in one spot for long.

• Once complete, move perpendicular to the deck boards and pressure wash the railings, posts, and any stairs. Rinse the entire deck with a final pass to remove all remaining dirt and cleaner.

• Allow the deck to dry completely, then apply a water sealant or wood stain if desired to help protect and moisturize the wood. Allow 48 hours before placing furniture back on the deck.

• Test the deck surface to ensure it's not slippery before using the deck again. Re-seal the deck every 2-3 years to maintain protection. Clean yearly or as needed to prevent buildup.

Conclusion

Take your time and be careful during the pressure washing process. By following these procedures, you'll get your deck sparkling clean while keeping the beautiful wood finish intact for years to come. Let me know if any other recommendations would further assist you with perfect deck washing. I'm here to help in any way possible!