Get matched with top deck maintenance specialists in Mableton, GA

Most building codes require that railing spindles (also known as balusters) on decks or stairs be spaced no more than four inches apart. This safety standard is often called the '4-inch sphere rule,' which means a sphere with a 4-inch diameter should not be able to pass through the opening between balusters. This rule is in place to prevent small children and pets from slipping through the railing. For the same reason, the space between the bottom rail and the deck or floor surface should also be no more than four inches. As a general guideline, professionals often install three balusters per foot of railing. However, since specific requirements can vary by location, it is essential to check your local building codes to ensure compliance before starting your project.

As with patios, there are many types of deck choices to choose from to add personalization to your home. Some common deck options include:

• Attached decks are anchored to the home and include simple ground-level options or multi-level structures with stairways and separate landings. 

• Detached island decks are not attached to the home; they’re a freestanding structure in the yard. 

• Wraparound decks connect the back of the house with at least one other side and often are built with railings for safety. 

• Multi-level decks connect your deck through varying levels of elevation, featuring landings that are attached to stairs.

You typically don’t need a railing and handrails on a deck that’s less than 30 inches from the ground. However, consider adding them regardless. Railings provide additional safety for you and your guests who use your deck—plus, railings give the deck a more finished look than it would have without them.

Composite decking requires a solid foundation or substructure for support. This base is typically a frame composed of posts, beams, joists, and footings. The frame can be built from various materials, such as composite, plastic, timber, or metal, depending on your budget, deck type, and environmental conditions. For maximum stability, a professional deck builder may recommend installing this frame on top of a solid concrete base. It is best to discuss the most suitable substructure design and materials for your specific project with a professional.