Quick Answer: How Much Quikrete Do I Need For A Post Hole?

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 you put dry concrete in a post hole?

Fast-setting concrete is ideal for setting posts because there’s no mixing—you simply pour the dry concrete from the bag right into the hole, then add water.

Is quikrete as strong as concrete?

Simple answer is yes, if you follow the directions. If you are say patching a hole in the driveway, the Quikrete 5000 will reach a compressive strength at 28 days as high or higher than what you are likely to get from a ready mix plant. They are usually delivering 3500 -4000 PSI concrete.

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.

How much does a 60 lb bag of concrete cover?

Divide the total cubic feet needed by the total cubic feet that can be made from one bag of Quikrete Concrete Mix. Quikrete’s Concrete Mix yield’s about . 15 cubic feet for every 20 pounds of mix, so a 40-pound bag yields . 30 cubic feet, 60 pounds of concrete mix yields .

How long will quikrete last?

As long as the material is still loose or will become loose with a little shaking Quikrete is a cement based product and cement really doesn’t have a limit on shelf life as long as it hasn’t been exposed to excess moisture or water.

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

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.

Can I mix quikrete in the hole?

Pour the QUIKRETE® Fast-Setting Concrete Mix dry from the bag into the hole until it reaches 3 to 4″ from the top. Pour water onto the dry mix and allow it to soak in. … This will take about one gallon of water for each 50 pound bag depending on soil conditions.

Can you pour concrete directly on dirt?

No, Because concrete slabs “float” on the soil, soft ground or voids underneath may cause unsupported areas to crack under heavy weight like vehicles. Pack about 4 in. of sand or gravel over clay and other poorly draining soils to provide even support.

How many sq ft does an 80lb bag of concrete cover?

4 sq feet in that amount of cement.

How deep should post be for 8 foot fence?

The depth of the post hole needs to be 1/3 to 1/2 the height of your fence. For example, if you are building a fence that’s 6 feet tall, you will need a hole that is at least 2 feet deep. That also means that you’d need to use an 8-foot post. The hole will need to be about 3 times the width of your post.

How tall can you make a privacy fence?

Fence regulations are typically governed by local law or a homeowners’ association. In many municipalities, six feet is the maximum height for a backyard fence, while a 4-foot fence may be used in front of your home.

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.

Can I pour concrete in a hole full of water?

The good news is that you can pour the concrete in water. … The biggest issue with pouring concrete under water is movement. If the water is moving, it can wash away the cement paste that’s holding the sand and gravel together. But if the water is calm, then it’s not a problem at all.

Will concrete cure in wet ground?

No, water does not become part of the concrete and it will eventually reach equilibrium with the environment around it, either getting wet or drying out. … If there is too little water, or you allow the water to evaporate too quickly, the chemical cure will not be complete and the concrete will end up weaker as well.

How many 80lb bags of concrete make a yard?

An 80# bag of pre-mixed cement, sand and gravel (CONCRETE) is 0.6 cubic foot per the bag. There are 27 cubic feet in a cubic yard. So 27 / 0.6 = 45 80# bags.

How much quikrete do I need for a fence post?

Remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground). The calculator will indicate the number of 50 lb. bags of QUIKRETE® Fast-Setting Concrete you need.

How long will a treated 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.

Will concrete set if it’s too wet?

When a concrete mixture is too wet, it causes a greater amount of shrinkage during the drying process than is needed. As a result, the concrete has a great likelihood of cracking and for those cracks are likely to be a fairly good size. … A watery mix actively reduces the compressive strength of the dried concrete.

How much weight can a 12 sonotube support?

Sonotube Round forms are designed for 12 feet of full liquid head, ie: 12 feet x 150 psf/ft = 1,800 psf. Sonotube Commercial and Finish Free are designed for 20 feet of full liquid head, ie: 20 ft x 150 psf/ft = 3,000 psf.

Is quikrete good for fence posts?

Work quickly. Quikrete Fast-Setting Concrete Mix will set in 20 to 40 minutes, and once it hardens, the post can no longer be adjusted. Wait four hours for the concrete to cure before continuing construction of your fence.

How deep should a post hole be?

In general, holes should be at least 3 feet deep for posts that extend 8 feet or more above ground level. Posts that extend 6 feet above ground level should have holes at least 2 1/2 feet deep.

How many bags of concrete do I need for an 8 inch tube?

I used three 80 pound bags of concrete mix to fill all of the 48″ length of this 8″ diameter tube form and had some concrete left over.

Will 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.

What is the easiest way to dig post holes?

How to Dig a Hole: Pro TipsStep 1: String your line and pound the stakes. … Step 2: Carve out a soil divot with a spade. … Step 3: Loosen earth with a tile shovel. … Step 4: Use your clamshell digger. … Step 5: Use a reciprocating saw on large roots. … Step 6: Dislodge rocks with a digging bar. … Step 7: Tamp the soil with the other end.More items…

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 deep should Sonotubes be?

When I reach our local frost depth of 48 inches, I add about 6 inches of stone to the bottom of the hole. This provides a good base for the footing, which consists of 6 inches of concrete to tie all the rock together and an additional 6 inches for anchoring the tube form.

How many bags of concrete do I need for a 2×2 hole?

Each hole is 2’x2’x2′ which equals 8 cubic feet. You have 2 of these so you need 16 cubic feet of concrete. An 80 lb (36.3 kg) bag of Quikrete yields approximately 0.60 cu ft (17 L). 16 cubic feet / 0.6 cubic feet / per bag = 27 (80#) bags of concrete mix.

Should I use 4×4 or 6×6 fence posts?

Instead of 4×4 posts, go with 6×6 posts. The extra size makes a huge difference. It’s a smart place to invest a little extra in your fence, because if your posts distort after they have been set in the ground with concrete, they are extremely difficult to replace.

How big of a hole do I need for a 4×4 post?

A general rule of thumb is to dig the diameter of the hole at least 3-4 times the diameter of the post. For example, if setting 4 x 4 wood posts, dig holes 9-12″ in diameter. Posts should be centered in the hole and the posts should always have concrete under them.