Composite decking and rails.

While we may be best known for our pressure treated wood products, Great Southern is also proud to offer TimberTech® composite decking and railing products.

TimberTech’s low maintenance decking and railing products are available in a wide variety of colors, styles and profiles and are backed by a 25-year transferrable warranty. It’s no wonder that TimberTech has become one of the most trusted names in the composite decking category.

Decking Products:
Wood-Plastic Composite
  • TwinFinish - Versatile plank with different textured surfaces on either side of the board. Available in 3 colors.
  • ReliaBoard - Available in 2 colors, ReliaBoard emulates the look of wood.
  • DockSider - Ideal for heavy-use public places and docks near water. Available in 2 colors.

Capped Composite
  • Earthwood Evolutions Legacy - Timeless style of the hand-scraped hardwood look. Available in 3 colors.
  • Earthwood Evolutions Tropical - Tropical tones with variegated streaking creates an authentic grain pattern. Available in 3 colors.
  • Earthwood Evolutions Natural - Popular architectural colors blend beautifully with any landscape. Available in 3 colors.
  • Earthwood Evolutions Terrain - Value-conscious with the timeless appeal of earthy tones make for captivating beauty. Available in 3 colors.


Railing Products:
  • Evolutions Rail Contemporary - Sleek, continuous top rail, uninterrupted by posts with four infill options to meet your every need. Available in 3 colors.
  • Evolutions Rail Builder - Offers the same clean, flat, continuous top rail design in an affordable alternative with metal infill. Available in 3 colors.
  • RadianceRail - Distinctive profile with invisible hardware and four infill options. Available in 6 colors.
  • RadianceRail Express - Specifically designed to allow quick, easy installation at an affordable price. Available in 3 colors.
  • Infill options - Composite, Stainless steel cable, aluminum, glass channel kit, metal balusters.


Lighting Products: TimberTech LED deck lighting allows you to extend use of your deck well into the evening.
  • Post Cap Light Module
  • Riser Light
  • Accent Light
  • Under-Rail Light
  • In-Deck Light


Other Products:
  • Fasteners
  • Gates
  • DrySpace
  • Trim


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