Decking Joists & Supports

Our timber decking joists, bearers and stringers come in a range of sizes and wood types to suit the look of your garden. Are you looking to create a decking space ready for Summer socials? You can ensure all of our decking elements are designed to withstand regular use and all types of weather, giving you peace of mind about their premium quality. Our decking supports, bearers and other components are designed with longevity and weather resistance in mind.

To ensure your decking lasts, the Ronseal Decking Protector can help you keep on top of its water resistance.

If you’re stuck on how to complete your decking set-up to the highest grade, we have all of the decking advice and guidance you need to get the job done.

FAQs

What size decking joists do I need?

When deciding on the size of decking joists you need to achieve your desired structure, several factors come into play to ensure structural integrity and optimum support. Firstly, you should consider the span or distance between all supports; this will determine the load-bearing capacity that’s required from your joists. For example, standard residential decks with a span of up to 6 feet, 2x6 joists spaced 16 inches on-centre will ensure reliable support for your preferred decking materials.

Your chosen material and intended use of the deck set-up will also influence joist size requirements. If you opt for composite decking or natural hardwoods, you will require larger joists that can withstand the weight. This also goes for accommodating the weight of hot tubs, furniture or gatherings of people.

How far apart should deck joists be?

How much distance you create between deck joists can depend on several factors, including the material type and expected weight. As a general rule, joists are typically spaced 16 inches on the centre for your average residential deck. If you opt for composite decking or natural hardwoods, which are much heavier, it may be that joists need to be spaced closer together.

What is a deck bearer?

Decking bearers, also referred to as decking beams or support beams, are a crucial support element of a deck’s joists and boards. They’re positioned parallel to the joists and tend to be located beneath them, allowing for the distribution of weight on the deck itself. This avoids sagging of the decking boards or instability while also promoting the longevity of the structure.