Composite decking requires a solid foundation, substructure, or subframe to ensure stability. This base is typically composed of posts, beams, joists, and footings. The frame's joists can be built from various materials like composite, plastic, timber, or metal, as long as the base can support the deck's weight without shifting. A professional deck builder might recommend installing the frame on a solid concrete base for added durability. The final design and materials for the substructure will depend on your budget, the type of deck, and environmental conditions.

Pavers are a great decking option for pools. They’re customizable, come in a variety of shapes, sizes, colors, textures, materials, and price points, and they’re slip-resistant. Concrete pool decks, on the other hand, are harder to repair and replace if damaged and aren’t as slip-resistant as most paver materials. However, not all pavers are equal in terms of durability, maintenance, and performance. Pavers also have their own cons that may encourage homeowners to opt for stamped concrete instead, such as higher upfront costs.

It is possible to build your own deck, but it’s typically better to leave the work to a decking professional. Decks can be exceptionally complicated, especially if you want a wrap-around or second-story deck, and you don’t want to risk making an expensive or dangerous mistake. It’s usually better to hire a decking pro who can pull permits and build a structurally sound deck that will last for decades and provide the maximum return on investment.

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.