Question: Do Wood Fence Posts Need Concrete?

Is fast setting concrete weaker?

Fast-setting concrete isn’t just simple and fast, it’s also durable and strong, reaching 4000 psi — or pounds of force per square inch —after a month.

That’s stronger than the concrete used for foundations on most homes..

Do wood fence posts need to be set in concrete?

First rule, gang: Do not set wooden posts in concrete. Look, no matter what preventative steps you take (and I’ll get to those), eventually wooden posts rot, and eventually you’ll have to set new ones. Not only does burying them in concrete make for more work down the line, it actually can speed up the rotting.

Are concrete fence posts better than wood?

Concrete Posts – the pros Unlike wooden fence posts concrete is not a degradable material and cannot be penetrated by rot or insect attack which is why people choose to opt for concrete over timber.

How many bags of concrete do I need for a 4×4 post?

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 – 48 hours.

How long will a wooden post last in concrete?

5-8 yearsThe guy who originally put them in says they typically ‘go’ between 5-8 years and is recommending I replace with concrete posts at considerable extra cost.

How long will 4×4 post last in the ground?

If you find the RV posts I mentioned earlier, they are steel, treated and when put in concrete will last 25 years or more. It will not last long (7 yrs max) if the bottom of the post is wet. If you place stone at the base of the post, it should last 20+ yrs.

How many posts will a bag of Postcrete do?

“Usually one bag of postcrete per post is enough, however you can use a two bags per post if you feel this is needed. The instructions are on the bag.”

How much concrete does it take to fill a post hole?

Fill the hole with Fast-Setting Concrete up to 3 to 4 inches below ground level. Pour about a gallon of water per 50 lb bag into the hole and allow the water to saturate the concrete mix.

Will wooden posts rot in concrete?

A: Actually, your point is well taken. 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. … Concrete should be poured around the post – no concrete under the post.

How do you keep fence posts from rotting in concrete?

The ideal solution is to eliminate contact between soil and wood. Using a metal post anchor set in concrete is probably the most effective method for achieving maximum longevity. To help keep the post from wicking water, choose an anchor that spaces the post bottom away from the concrete.

Is 2 feet deep enough for fence posts?

The minimum depth that you should dig your fence post holes for panel sections is 2 feet. A general formula is to dig the holes one-third to one-half of the post’s aboveground height. The deeper you dig the holes, the more stability your fence has, but you must also purchase longer posts.

How long will a pressure treated post last in the ground?

The Forest Products Laboratory and other research groups have shown that treated wood stakes placed in the ground for more than 40 years remain rot-free. But young pressure-treated decks, many less than 10 years old, are being shoveled into landfills.