# How far can you span a 2×8 deck joist?

## How far can you span a 2×8 deck joist?

Span is determined by species, grade, dimensions, spacing, use, and load. A rule of thumb is 1.5 times a joist’s depth but in feet when spaced at 16” centers. In general, a 2×8 will span 1.5 x 8, so 12-feet. Based on all factors though, a 2×8 joist span is 7′-1” to 16′-6”, and a rafter 6′-7” and 23′-9”.

**What is the maximum span for a 2×6 deck joist?**

How Far Can 2×6 Decking Span? A decking board made up of 2x6s can span a maximum distance of 24 inches from joist to joist.

### What size joists should I use for decking?

Commonly used joist sizes are 2-by-6, 2-by-8 and 2-by-10. For example, when you space joists 16″ apart — which is standard for residential decks — a deck spanning 9 1/2′ would require 2-by-6 joists, a 13′ deck would need 2-by-8 joists and a 16′ deck calls for 2-by-10 joists.

**How many joists do I need for a 10×12 deck?**

For example, a 12-foot x 12-foot deck of 5/4 x 6 pressure treated wood decking on 16 inches on center spacing of joists will require: A 12-foot long deck with joists 16 inches on center will require 10 joists.

## Can you span 12 feet with a 2×8?

The Depth of Structural Element Using this rule, a 2×6 will span 9 feet, a 2×8 will span 12 feet, and a 2×10 will span 15 feet. As you can see, the larger the depth, the longer the span.

**How many joists do I need for my Deck?**

That means these joists can span the 12-foot depth of the deck, and the beam can be located at the perimeter. Nine joists will be needed for the 16-foot width. (I prefer to double the outside joists, as do some deck builders, which adds 2 joists, for a total of 11.

Types and Sizes of Decking Screw. Deck Screw is a crucial and essential part of decking.

### How to make deck joists last longer?

Adjustable wrench

**Can I use 2×6 for deck joists?**

One can use 2×6 for deck joists depending on where they want to put the deck. If the deck is going to be put near the ground, 2×6 joists may work perfectly. In other cases, it might not give much strength. Even the spanning of the deck joist must be considered, which would be 16 inches.