Can You Power Wash Trex Decking?
What You Need to Know
60-second answer from Southeast Michigan's most trusted deck builder — voted Nation's Top Deck Builder two years running.
Is It Safe to Pressure Wash Trex Decking?
A common question we get from homeowners looking to clean their composite deck is: "Can I use a pressure washer on my Trex decking?"
The short answer is: It is not generally recommended, but it is okay to do in certain instances if you follow strict guidelines. Trex decking is designed to be low-maintenance, and in most cases, you don't need heavy-duty equipment to keep it looking great.
Video Transcript
Question: "Is it okay to pressure wash my Trex decking?"
Answer: "Yea, great question. So not recommended, but okay to do in certain instances. The pressure washer needs to be under 2700 p.s.i. You need to keep it about 12 inches away from the deck with the fan blade attachment. But in most cases, though, with a regular hose with a little bit of soap and water, will go a long way."
Guidelines for Pressure Washing Your Deck
If you have stubborn dirt or debris and decide to use a pressure washer, it's crucial to follow these rules to avoid damaging the composite material and voiding your warranty:
⚠️ Crucial Pressure Washing Rules:
- Keep the pressure under 2700 PSI.
- Hold the wand at least 12 inches away from the deck surface.
- Always use a fan blade attachment (never a zero-degree or pinpoint nozzle).
- Spray in the direction of the grain to avoid etching the surface.
The Best Way to Clean Trex Decking
Because Trex is engineered to resist staining and fading, aggressive cleaning methods are rarely necessary. The safest and most effective way to clean your Trex deck is simply using a standard garden hose along with warm, soapy water and a soft-bristle brush.
| Cleaning Method | Safety Level | Best For |
|---|---|---|
| Soap, Water & Soft Brush | Safest (Recommended) | General dirt, pollen, and everyday cleaning |
| Standard Garden Hose | Safe | Light dust and surface debris |
| Pressure Washer (< 2700 PSI, Fan Tip, 12" Away) | Use with Caution | Stubborn dirt in specific instances |
| High PSI Pressure Washer / Pinpoint Nozzle | Do Not Use | Will damage the deck and void warranty |
Custom Deck Creations Serves All of Southeast Michigan
We design and build custom Trex composite decks, deck resurfacing projects, and outdoor living spaces for homeowners across Southeast Michigan — with the TrexPro Platinum certification, A+ BBB rating, and 5.0 Google rating to back every project up.
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