This is a really big deal on raised decks with patios underneath. More design flexibility. If I need a longer span I can change the parameters of joist from gauge, flange width, and web depth. With wood, we are stuck with 2×8 through 2x12s. Perfect material. Every joist is made by a machine so there are no

Some builders reduce joist spacing to 12" on center to strengthen the deck frame or to increase maximum allowable joist spans. Before building a composite deck always read the installation instructions from the manufacturer paying special attention to the required joist spacing. Most composite decking materials require

Expert deck builders show you how to build a deck with composites and other rot-resistant materials for longevity. Planning a deck joist. Stretch a chalk line across the joists to find high spots and plane them down. Most PVC and composite products aren't as rigid as wood, so they don't bridge imperfections in the framing

Building a deck frame is satisfying work and tolerant of minor errors — perfect for the determined DIYer. The single most-important framing member is the ledger board. Once installed, it acts as a guide for a deck frame that's level and square. It's a good idea to mark joist locations on the ledger and on the front-facing rim joist

Blocks cut from the same material as your joists should be installed at regular intervals, perpendicular to the length of the joists. High Decks. Taller decks are often visible from below. Many of them even have outdoor living space underneath. So, it is important to consider how your blocking will be installed if it is visible

guides and started digging. This was no small task because they decided to cut through the brick patio and underlying concrete before learning it was 5-1 2″ thick. Pro-Tip: You may see support beams where the deck post is sandwiched between two pieces of 2x material. The method we describe

Elevations joists and tracks come only in predetermined lengths, much like lumber, and you have to cut all material on site. Because the Elevations ledger is just a piece of track, unlike the Trade Ready ledger I use, you have to lay out the joist locations and install an L70 framing angle in each, with eight

Let's also assume that the framing material is #2 southern pine (Douglas fir spans would be similar, but you should verify them). Most deck builders would typically support the free end of a deck this size on a beam made from two 2x12s supported on three posts set 7 feet 6 inches apart. (A beam made from

The dimensions of this small deck are approximately 8 feet x 10 feet. Such a small deck really only requires nine concrete deck blocks (eight spaced evenly along the perimeter -- including one at each corner -- and one in the middle, under a joist). You might wonder, "What's the purpose of such a MORE

Left: Measure from the existing patio to the threshold or bottom of the door frame. Allow for the thickness of the decking material. Right: Sight down the board to determine crown. Turn the board so that the convex edge is against the fence. Determine the joist height for the system. To get the height of the

A deck is essentially an outdoor floor supported by a frame, posts, and footings secured in the ground; assembled in stages; and built from the ground up. The following terms define all of the important components of a typical deck. Beams or girders: Hefty framing members (usually 4x, 6x, or doubled or tripled 2x stock)

While the outdoor environment and the endless design possibilities have remained constant, emerging technologies and new products and materials require a The error: A tragedy brought to us from the aisles of big-box stores: directions to deck builders to bolt deck beams to the sides of support posts.

All decking material shall be composed of dimension lumber (2" nominal thickness) or span rated decking in accordance with the American Lumber Standard. Committee Policy for Evaluation of Recommended. Spans for Span Rated Decking Products (November 5,. 2004). Attach decking to each joist with 2-8d threaded.

Since you'll need a footing for each post, you must determine the allowable post spacing before calculating the foundation material requirements. The post spacing depends on the allowable span of the beams or girders that support your deck joists. Larger beams or girders can stretch for greater spans.