Trex 20-Foot Rocky Harbor Square-Edge Composite Decking

  • Some stock photographs may show options that are not included. Please check product description.

20-Foot Rocky Harbor Square-Edge Composite Decking

1X 5.5 20

Please select a store to view pricing and availability.

* Estimated stock levels as of Tue, Sep 28, 2021. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availablity of items marked as Limited Stock.

  • The beauty of wood with the ease of composite
  • Made of high-performance composite for durability; wont rot, warp or splinter, unlike wood
  • Protective outer shell resists fading and staining; no sanding or painting required
  • Quality low-maintenance material; cleans easily with soap and water
  • Easy-to-build decking; no specialty tools required
  • Lightweight scalloped profile for easy handling
  • Made of 95% recycled materials, with a low carbon footprint
  • Backed by 25-year Limited Residential and Fade & Stain warranties
  • Made in USA


A contemporary changing neutral, Rocky Harbor adds sandy undertones to a rustic slate gray, featuring a low-maintenance, wood-like grain pattern.

Nominal product information shown. Actual product may vary by (and not limited to) dimension, color, grain, etc. See store for details.



Color Rocky Harbor
Edge Square
Manufacturer Product Warranty 25 year Limited
Material Composite
Type Deck Board


Length 20 ft
Size 1X5.5X20
Thickness 0.94 in
Width 5-1/2 in

Manufacturing Details
The following information is subject to change without notice

Prop 65 Warning Warning WARNING: This product can expose you to chemicals including wood dust, which is known to the State of California to cause cancer. For more information, go to

Related Documents

Please select a store to view pricing and availability.