How to Create Concrete Fence Posts

Quck answer

Concrete fence posts are an essential component of any sturdy and long-lasting fence. To make concrete fence posts, follow these steps:

1. Gather the necessary materials, including cement, sand, gravel, water, and reinforcing bars.

2. Measure and mark the desired locations for the fence posts.

3. Dig holes at each marked location, ensuring they are deep enough to accommodate the desired height of the posts.

4. Mix the cement, sand, gravel, and water in a wheelbarrow or concrete mixer until you achieve a thick consistency.

5. Insert the reinforcing bars into the holes, leaving enough length above the ground for attaching the fence panels.

6. Pour the concrete mixture into the holes, ensuring the posts are properly aligned and level.

7. Allow the concrete to cure and harden for at least 24 hours before attaching the fence panels.

By following these steps, you can create durable and reliable concrete fence posts for your fence.


Constructing concrete fence posts is a quick project that can be done over a weekend once you have the easy-to-make forms. These forms made from pine can be reused multiple times and don’t require much storage space. By following a few simple steps, you can create multiple forms.

Materials Needed

  • 12-inch by 96-inch plywood (1/2 inch thick)

  • 2 1-by-4s, 73 1/2 inches long

  • 2 1-by-4s, 6 inches long

  • 6 2-by-4s, 12 inches long

  • 8 1 1/4-inch wood screws

  • 12 2-inch wood screws

  • Circular saw

  • Safety glasses

  • Tape measure

  • Pencil

  • Square

  • Drill motor

  • Philips drill bit

  • 6-inch by 72-inch piece of plastic

  • Ready mix concrete

  • 2 1/2-inch diameter pieces of rebar

How to Create Concrete Fence Posts

Step 1: Cut the Wooden Pieces

Using a circular saw and wearing safety glasses, cut the wooden pieces listed above. Measure each piece using a tape measure and create a straight cutting line using a square.

Step 2: Prepare the Base

Place the 12-inch by 96-inch plywood on a flat surface; this will serve as the base of the concrete form. Assemble the 1-by-4s into a rectangular shape by screwing all four corners with two 1 1/4-inch screws in each end. Insert the 6-inch boards inside the two longer 73 1/2-inch side form boards. The inside measurements of the post form should be 6 inches wide by 72 inches long and 3 3/4 inches deep.

Step 3: Secure the Base Parts

Center the rectangular post form on the plywood by measuring all sides from the edge of the plywood. Lay three of the 2-by-4s evenly spaced along the length of the 1-by-4 form. Attach the 2-by-4s, with the wide face down, to the plywood using the 2-inch long wood screws. Two screws per 2-by-4 should be enough to hold them in place.

Step 4: Continue Securing the Base

Attach the other three 2-by-4s along the other side of the form. Use a tape measure to ensure that the inside measurements of the post form remain at 4 inches. The wooden concrete post form should be able to move freely in and out of the 2-by-4 side supports.

Step 5: Mix the Concrete

Place the 6-inch by 72-inch plastic piece under the post form and insert the form between the 2-by-4 supports. Follow the instructions on the concrete bag to mix the concrete and then fill the post form. Level the concrete to the top of the form using a piece of scrap wood.

Warning

Make sure the concrete post is fully cured before installing it in the ground.

Step 6: Insert the Rebar and Allow to Set Overnight

After the concrete has set up for a few minutes, insert the two pieces of rebar into the post at an equal distance of 3 inches from each other, approximately 1 1/2 inches from the long side of the form. Allow the concrete to set overnight.

Step 7: Take Out the Supports

Elevate the post shape from amidst the 2-by-4 supports and place it on its side with the 1-by-4 facing upward. Unscrew the four screws and eliminate the post from the wooden shape. The post should still undergo the curing process for several days by laying it horizontally on a stable surface. Reconstruct the wooden shape, and you are prepared to create another post.

Hint

You can utilize a complete sheet of plywood and fasten numerous shapes to the base by alternating the 2-by-4 supports in between each wooden shape.

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