Types of Lumber

Pressure treated wood is normally specified for the deck's framing systems. Wood commonly used in different aspects of a deck includes cedar, redwood or even mahogany. To ensure you have the proper wood type, length and size for different components be sure to consult your local building code for current specifications.

Pressure treated wood uses a chemical liquid that acts as a preservative that is forced into the wood through a pressurization process. This protects the wood from rotting and from deteriorating as a result of the harsh outdoor elements.

Cedar is great for deck floors or other deck accessories. It is great in that it naturally resists rotting and is known for its strength. Redwood is also used for spindles and flooring and is ideal in that it durable and has a beautiful rich color.

Joists, beams and posts which are important for framing require pressure treated wood. Deck flooring boards use pressure treated wood or can use composite materials or vinyl. Cedar, redwood, and mahogany are popular for deck floors. Woods range in price depending on strength, availability, and quality. Rim joists which are the outer joists normally need top grade pressure treated wood.

Railing posts should have pressure treated wood. Balusters or spindles use the same materials as railing posts but because they are not structural, they can also be made of cedar, redwood, composites or vinyl.