Should I Use 2×6 Or 2×8 For Deck?

Should pressure-treated deck boards be spaced?

Proper deck board spacing should have a 1/8-inch gap after the decking has dried out.

If you install your decking using wet boards, pressure-treated decking that has not yet dried out, then you should install them with no gap as a gap will be created as they dry and shrink..

Is a 4×6 stronger than a 2×8?

In similar terms this is a measure of objects resistance to rotate. From contributor A: Unless it comes a ways from the pith of the log it will be stronger if it comes from a “boxed heart” timber. A good 2×8 will support as much as a 4×6.

Can you use 2×6 for deck boards?

Wood decking is commonly available in 2×6 and 5/4 x 6 profiles. 5/4 x 6 is produced specifically for decking and is milled with a radius edge or bull nose. 2×6 is thicker and is stronger, but is also more expensive. Spacing between deck boards provide a few critical functions.

Can I build a deck directly on the ground?

Floating decks can be set directly on the ground or, preferably, a bed of gravel. But it’s best to support the deck on concrete blocks. This keeps the wood off the ground and away from moisture so the wood stays drier and lasts longer.

What size wood should I use for decking frame?

Generally speaking 100mmx50mm needs supporting at about 1.5-2m if the joists are on 400mm centres. The grade of wood has to be taken into account. c16-24 is stronger and more durable than other non-graded types. Always err on the side of safety.

How far can a 2×6 joist span?

Max. Live Load 30 lbs/ft2 (1436 N/m2)Maximum Span (ft – in)Nominal Size (inches)Joist Spacing Center to Center (inches)Lumber Grade2 x 61212′ – 0″1610′ – 11″249′ – 7″10 more rows

How far can you span a 2×6 ceiling joist?

For example, the highlighted cell (below) shows that a 2″ x 6″ Southern Yellow Pine joist, with a grade of #2, and spaced 24″ apart can have a maximum span of 10 feet – 0 inches (10-0), if you are designing your structure to support a plaster ceiling.

Should you leave space between deck boards?

When securing the decking, it is important to leave adequate spacing between the boards for water to drain. The goal is to have about an 1/8-inch gap (the diameter of an 8d nail) between boards after the decking has dried to its equilibrium moisture content.

Should I use deck boards or 2×6?

Overall, you will achieve a more solid feel when you use 2×6 planks with 16” OC joist spacing when compared to 5/4 boards. Therefore, if your deck needs to support a significant amount of weight, will be hosting a lot of people, or will experience high traffic, the thicker material is generally the better option.

How far can a 2×6 beam span without support?

How far can a 2×6 Rafter span without support? The table states that 2 X 6 rafters spaced 16 inches on center (o.c) can span a maximum distance of 13 feet 5 inches.

Are 2×6 strong enough for deck joists?

2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. … Most decking is not strong enough to support longer spans than 16″. Some builders reduce joist spacing to 12″ on center to strengthen the deck frame or to increase maximum allowable joist spans.

How much weight can a 2×6 deck support?

In short there’s no one right answer to “how much can my deck hold?” However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, it’s built to hold 50 lbs. per square foot. It’s possible that it could hold much more weight than 50 lbs.

How thick should my deck boards be?

This dimension is 1 to 1-1/4 inches thick. Any less thickness produces a springy, weak deck. Joist spacing also determines how thick your deck boards must be. … However, if your joists are spaced 24 inches on center, or if you plan to lay the deck boards on a diagonal, building codes typically require 2-inch material.

How far can a 2×10 span without support?

Douglas fir 2-by-10 joists graded as “Structural Select” allows joist spans up to 21 feet for a live load of 30 pounds per square foot when spaced 12 inches apart, 19 feet 1 inch for 16 inch spacing and 16 feet 8 inches for 24 inch spacing.

How far can you span a 2×6 on a deck?

24 inchesDecking made of 2x4s or 2x6s can span up to 24 inches. If you will run decking at an angle, you might need to put the joists closer together.

Can you use 2×8 for deck boards?

Q: Can I use 2×8 treated lumber as deck boards? A: No, that’s a not a good idea. Lumber wider than 6 inches should not be used as a flat surface. Wide, flat boards have a tendency to pool rain water, which can lead to cupping problems.

Can you build a deck with 2×4?

I have designed this deck so you can build it entirely from 2x4s. … Considering that you will use 2x4s for the joists, at a 12″ span, you cannot make the deck larger than 8’x8′.