Riverhead Building Supply is your top source for TimberTech’s low-maintenance, high-end railing systems. TimberTech composite railing has a large variety of profile and infill options, is stronger than wood, and never needs to be stained. Ideal for decks, stairs and more. View our TimberTech collections below.

TimberTech RadianceRail Composite Railing riverhead building supply


With smooth lines, no visible hardware, and a traditional profile, RadianceRail® is TimberTech’s most sought-after railing collection.

TimberTech RadianceRail Express Composite Railing riverhead building supply

RadianceRail Express®

Enjoy the look of RadianceRail with a quick installation and affordable price.

TimberTech Evolutions Rail® Contemporary Composite Railing riverhead building supply

Evolutions Rail® Contemporary

Evolutions Rail® Contemporary composite railing features a continuous top rail for a linear, modern look. This rail profile combines low-maintenance sensibility with sleek, high design style.

TimberTech Evolutions Rail® Builder Composite Railing with Metal Balusters riverhead building supply

TimberTech Evolutions Rail® Builder

Evolutions Rail® Builder offers a modern composite rail profile with sturdy metal balusters. Achieve the dramatic look of Evolutions Rail at a lower price point.