What kind of concrete is used for fence posts
Joseph Russell
Updated on March 25, 2026
Fast-setting concrete is ideal for installing fence posts since it doesn’t need to be mixed in a bucket or a wheelbarrow. Once you’ve finished digging your post holes, add about three to four inches of gravel into the bottom and compact it using a post or a 2×4.
What type of cement is used for posts?
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.
Can I use high strength concrete for fence posts?
Standard concrete mixes such as Sakrete High-Strength Concrete Mix and Maximizer Concrete Mix can also be used to set posts and poles but requires the material to be premixed before application. For a higher yield per bag material that requires fewer bags to haul, use Maximizer Concrete Mix.
Can you use quick set concrete for fence posts?
Setting posts one at a time is a good idea, but make sure all your posts are braced and ready if using Rapid Set Concrete. Rapid Set Concrete will harden in 15 minutes or even faster on a hot day. Be prepared to complete your project quickly.How much quikrete do I need for a fence post?
1 – 4 bags of concrete per fence post are typically what’s needed. This depends on the type of soil, fence design, height, post size and bag weight. In general the depth of the post’s hole needs to be 1/3 to 1/2 of the above ground height of the post.
Is fast setting concrete as strong as regular concrete?
Quikrete fast setting concrete is just as strong as regular concrete. Concrete gets its strength from a chemical reaction that occurs over time during curing. After it’s had time to cure, which usually take 28 days to complete, Quikrete can reach strengths up to 5000 psi.
How much quikrete do I need for a post hole?
Project Instructions 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.
Is 2 ft deep enough for fence post?
2 feet is the minimum depth that you should dig your fence post holes for. To dig the holes one-third to one-half of the post’s aboveground height, is a general formula. The deeper you dig the holes, the more stability your fence has.Can I use mortar for fence posts?
It is ideal for setting posts such as fence posts, mailbox posts, basketball posts, deck posts, lamp posts, and swing sets. One of the concretes we sell is the Quikrete Fast Setting Concrete Mix. … Mortar, which is a mixture of water, cement, and sand, has a higher water-to cement ratio than concrete.
How do I keep my post level while concrete dries?You need to level it in two directions with a 4-foot level. After getting it straight in the first direction, hold one of the braces against the post and drive a single screw to connect the brace to the post. You can then level and brace the post in the other direction and begin filling the hole.
Article first time published onHow deep should a concrete fence post be?
Dig your hole to the correct depth, allowing for the height of the fence panel and the gravel board. As a rough guide the hole should be a minimum 1/3 the height of the fence, so a 6 foot fence would need an 8 foot post in a 2 foot deep hole. Similarly, the hole should be three times the diameter of the post.
How long should concrete cure for fence posts?
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 long does quikrete last?
Quikrete will eventually go bad. Bags can generally be kept for three months to a year depending on how they’re stored. Although I’ve kept Quikrete bags for much longer by wrapping them tightly in plastic and keeping them in a very dry place. The reason Quikrete goes bad is the cement.
How many square feet does a 50 lb bag of quikrete cover?
60 cubic feet. One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about . 375 cubic feet. For example, if you need to cover 33.333 cubic feet, using 60-pound bags of concrete, divide 33.333 cubic feet by .
Can I mix quikrete in the hole?
Whether you are building a new fence, setting a mailbox or anchoring a basketball goal or play set, QUIKRETE® Fast-Setting Concrete is the ideal product for the job. With Fast-Setting Concrete there is no mixing or tools required – You simply pour the dry mix right from the bag into the hole, then add water.
How many bags of concrete do I need for one fence post?
Most fence post holes will need between 1 – 4 bags of concrete to securely hold the post in place. The best way to determine the size of the hole is: Diameter of the hole is 3 times the width of the fence post.
What kind of gravel should I use for fence posts?
Pea gravel is commonly used for fence post holes. Gravel that is roughly three eighths of an inch in size is generally a good medium between drainage and support, though gravel close to that size also may be used.
How deep should a 8 foot fence post be?
How Deep Should a Fence Post Be? For an average fence post, about 6 to 8 feet tall, prepare to dig a post hole about 2 feet deep. To install a fence post, you’ll need a shovel or post digger, a 6-foot level, soil, and gravel or crushed stone.
Does pea gravel make concrete stronger?
In general, angular crushed particles give concrete greater strength because they interlock more than rounded pea gravel particles do. … Size also influences strength: The bigger the aggregate, the stronger the finished concrete will be, since the chunks of rock don’t crack as cement paste does.
Is Sakrete or Quikrete better?
Sakrete tends to have big pebbles in their mix, even though their composition is similar. So, you might have to put enough cement down to cover the rocks. Quikrete, on the other hand, is usually easier to mix and work with.
Can you use rapid set for fence posts?
Rapid Set Concrete is specially formulated to harden rapidly, so you can complete a job faster and have more time for other projects. It is highly suitable for fixing fence and non-load bearing pergola posts, clothes hoists and many other non-structural uses.
Can you use Portland cement for fence post?
My advice would be to mix the all-in aggregate with ordinary Portland cement at a ratio 4:1 with enough water that will thoroughly mix to bind the material but will not slump or run. A fence post will stand up unaided until the concrete goes off leading to a much stronger job.
Can I use concrete instead of mortar?
Though both mortar and concrete are widely used building materials, they cannot be substituted for each other without compromising the integrity of a build.
Is masonry cement the same as Portland cement?
Masonry cements and portland/lime blends have different ingredients, manufacture processes, and are covered under different specifications. However, the two have similarities which include: bond, workability, weather resistance, water permeance, efflorescence potential, water retention, and board life.
Whats the difference between mortar and cement?
Cement is a fine binding powder that is never used alone but is a component of both concrete and mortar, as well as stucco, tile grout, and thin-set adhesive. Mortar is composed of cement, fine sands, and lime; it is used as a binding material when building with brick, block, and stone.
How tall should a fence be for a 6 foot fence?
As a general rule of thumb, you’ll need to place at least 1/3 the height of the post in the ground. For example, a 6-foot tall fence will need at least 2 feet of post in the ground.
How far fence posts should be apart?
Most fence posts can be spaced 8 to 12 feet apart. While this is a general criteria, it doesn’t cover all scenarios. For instance, high tensile fence can have larger spacing, requiring line posts every 15 to 20 feet for field fence styles, and as much as 20-30 feet for high tensile barbed and smooth wire.
How big of a hole do you need for a 4x4 post?
The diameter of your post hole should be three times the diameter of your post. So, if you’re planning on using a four-inch round or 4×4-inch square post, your post hole will need to be 12 inches in diameter. For a six-foot-high fence post, we would need a hole that’s 36 inches deep and 12 inches in diameter.
How do you concrete a post in the ground?
- Step 1 – Measure and Mark new Post Locations. …
- Step 2 – Check Fence Post Levels. …
- Step 3 – Dig Fence Post Holes. …
- Step 4 – Add Aggregate to Base of Fence Post Holes. …
- Step 5 – Treat the Bottom of Each Fence Post. …
- Step 6 – Place Posts in Holes and Fix in Position.
How heavy is a 9 foot concrete fence post?
The 9ft long (2.745m) intermediate post has a section size of 94mm x 109mm and weighs approximately 50kgs.