Timbertech Reliboard  It's all about value. The dream of enjoying a low-maintenance outdoor oasis is well within reach with ReliaBoard. There’s no reason to settle for the concerns that come with a traditional wood deck – sealing, staining, splintering and rotting – when you can have all the benefits of composite decking at a surprisingly affordable price. ReliaBoard emulates the look of wood and is perfectly complemented by TimberTech composite railing.