Deck Planning Basics
Knowing the building blocks of decking and railing helps you understand all the beautiful options possible with Trex® – from colours to profiles to finishes.
Components – Get To Know Deck Building Blocks
- A Top rail: The horizontal portion that attaches to the top of balusters and posts, and maintains straightness.
- B Post cap: Cap topping each post is the decorative finish that also stands the weather.
- C Balusters: Smaller pickets that ensure spacing and safety.
- D Post: Sturdy vertical pole that bookends a section of railing.
- E Bottom rail: The horizontal portion that attaches to the bottom of balusters and posts, and maintains straightness.
- F Post skirt: A finishing piece at the base of the post that covers any cuts where the decking and railing meet; usually coordinates with the cap.
- G Cocktail rail: Optional add-on; its flat, deck-board surface can hold drinks, planters & more.
- G Decking: The decking boards that serve as the walking surface.
- H Joist: Dimensional structure, set on edge, which supports decking.
- I Beam: Supported by posts, the beam is the main horizontal support for the deck.
- L Elevated post: Vertical supports that rest on footings and support the beam.
- M Footing: The below-ground support of a deck’s post, usually made from concrete.
- N Tread: The walking surface of each step in a stairway.
- O Riser: A board attached to the vertical face of a step between treads.
- P Stringer: The support frame of stairs to which the risers and treads attach.
Build Or Resurface?
Deck builds usually go two ways: you have a framework with a little life left in it and only the top boards need a facelift. Or, you’re starting from the grass up and need a completely new deck. Either way, Trex is the perfect solution, with myriad products that outdeck timber at every stage.
- Multiple high-performance decking lines with lots of colour and finish options.