Quick Answer: Should I Use 4×4 Or 6×6 Fence Posts?

Should I use 4×4 or 6×6 deck posts?

A short 4×4 can carry an awfully big load, and many deck builders use 6×6 posts as a standard, regardless of the height or load of the deck.

Multiplying that area by the expected load tells you the weight a post is expected to carry..

What size fence post should I use?

You should choose post materials with a 4 inch width and 4 inch thickness, giving you square wooden board for you post. The height will be equal the height of your fence plus 2 to 3 feet. The extra length is allowance for the ground hole where the post will be buried.

What is the difference between 4×4 and 6×6?

The differences between 6×6 closure and 4×4 closure Just as their name, the lace size of a 6×6 closure is 6 inches long by 6 inches width. But the lace size of a 4×4 closure is 4 inches length by 4 inches width.

How far can you space 6×6 posts?

8 feetFor Building a Deck Railing, Deck Frame, or Fence The maximum spacing of 4×4 deck posts should be 6 feet on center, while the maximum spacing of 6×6 deck posts should be 8 feet on center.

How far off the ground should a wood fence be?

two inchesIn most applications, a wood fence should be installed at least two inches off the ground. Your posts and rot boards (if you choose to install them) should be the only fence components that contact the ground. Wood pickets should never touch it.

How does a 6×6 work?

Six-wheel drive (6WD or 6×6) is an all-wheel drive drivetrain configuration of three axles with at least two wheels on each axle capable of being driven simultaneously by the vehicle’s engine.

How far can a 6×6 span without support?

Each 6×6 beam only spans 12 feet, of which 2 of those feet are supported by a knee brace. So technically the beams only span 10ft.

Should I use concrete for fence posts?

Setting Fence Posts in Concrete Concrete is the most secure material for setting fence posts, especially if you have sandy soil. Gravel may be okay with dense, clay-heavy soil, but in looser soil, concrete is the only thing that will truly keep your fence posts stuck in place.

Can wood fence posts be 10 feet apart?

Typical spacing is right around 8 feet between each post however different circumstances may call for different measurements and it is not uncommon to have spacing between posts reach up to 10 feet. Once you have a rough idea of your post layout start by digging your first hole.

Why do fence posts rot at ground level?

The main cause is the wood having prolonged exposure to moisture in soil which means fence posts decay at ground level – just above the concrete base. This means the post will still be solid below and above the damaged area. Insect infestations can also cause rotting in wooden fence posts.

Is 2 2×6 or 1 4×6 stronger?

A 4×6 joist is theoretically stronger than a doubled 2×6 joist because it’s 1/2″ thicker, but the actual strength depends upon the knots and other inherent weaknesses of any particular piece of lumber (#2 lumber can have some nasty spike knots or large not-so-tight round knots or wane).

What size post should I use for a 6 foot fence?

Post lengths for fences start at 8 or 10 feet for a 6-foot-tall fence. They are commonly four-by-fours, which measure approximately 3 1/2 by 3 1/2 inches, or six-by-sixes, at around 5 1/2 by 5 1/2 inches.

How long will a 6×6 post last in concrete?

40 yearsThe treated post that are rated for ground contact are guaranteed for 40 years.

Is 6×6 better than 4×4?

6×6 or 4×6 will also give you less traction in specific conditions, than a 4×4. In snow/ice and other low traction situations, you have way less traction. … A 6×6 with all axles driven doesn’t have the same issue, as there’s no un-driven axle to take weight off a driven axle.

Can I use a 6×6 as a beam?

To answer you question, no a 6X6 will not carry that span, even if you have only a roof to support. The strength is in the height of the beam, not so much for the width. … If yours is supporting a roof load, he will need to know your area so the snow load if applicable, can be calculated in too.

How deep should a post hole be for a 6 foot fence?

The depth of the hole should be 1/3-1/2 the post height above ground (i.e., a 6-foot tall fence would require a hole depth of at least 2 feet). Add about 6 inches of QUIKRETE All-Purpose Gravel into the bottom of the hole.

How strong is a 6×6 post?

For a 6′ long post of fir, 10,000lbs is right. Says this. When we build shoring for building collapses/urban search & rescue, our go-to guide is from the US Army Corps of Engineers. As this screencap from it will tell you, a 6×6 post can support 20,000 even when 12′ high—if cross-braced and secured properly.

Are 3 2×6’s as strong as a 6×6 post?

One 6×6 will be 22% stronger than three 2×6’s. This assumes, of course, that the long side of the thinner boards is vertical, and that we’re talking standard dimensional lumber where a 2×8 is really 1.5×7.

How big of a hole do I need for a 6×6 post?

10″Dig an 8″-diameter hole at least 6″ deeper than your area’s frost line for each 4×4 post, using a power auger, hand auger, or post-hole digger. A 6×6 post requires a 10″-diameter hole.

Do fence posts rot in concrete?

Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow. … First, the posts should be set on top of a bed of coarse gravel 3 to 6 inches deep, so the base of the post is in contact with the gravel.

Are 6×6 good off road?

6×6 is serious overkill for normal off road work. I guess one may need it only if one is say, a Nat Geo photographer, habitually driving the terrain less traversed! I have always admired Russian 6X6 and 8X8 trucks. They have always seemed (and perhaps are) more capable than regular 4X4s.