Product Details Concordia premium PE composite decking combines classic and on-trend colors and grain patterns with unbeatable performance. Available in three distinct collections: Astir, Horizon, and Symmetry. The Astir Collection features a rustic cathedral grain and three fresh, nature-inspired multi-tonal hues. The Symmetry Collection features a low-gloss formula and micro-texturing to create a wire-brushed finish. The Horizon Collection includes a sweeping cathedral grain with dramatic streaking that emulates exotic hardwoods. Durable composite core resists splintering, rotting, cracking, insects and decay. Four-sided PermaTech cap layer provides superior protection and fade resistance. Boards never need sanding, staining or painting. Simply clean with soap and water or a mild cleaner. Finished surface on top and bottom is ideal for second-story decks, and reversible boards save time and money while reducing waste. Concordia contains 94% recycled material, combining recycled wood with the long-lasting resilience of recycled plastic. The flat-profile bottom provides a sturdy feel, reminiscent of traditional lumber. Backed by a lifetime performance warranty and a 50-year stain and fade warranty. Warrantee: Lifetime / 50-Year Grooved or Solid Lead time: Lead time is generally 1-2 business days to arrive at our warehouse. Please allow 1-2 additional days for delivery. Board Profile and Uses Square-Edge | Size .935" x 5.4" Designed for surface fastening. Use for stair treads and for picture framing. Grooved-Edge | Size .935" x 5.4" Designed for use with hidden deck fasteners for a smooth, fastener-free surface. Riser | Size .75" x 7.25" Riser boards create the back portion of stairs. They are installed at a 90° angle to the stair itself. Fascia | Size .75" x 11.25" Fascia boards are trim boards used to finish the sides of a deck.