Types of Slotted, Morticed, Recessed and Corner Concrete Fence Posts

Concrete fence posts are a popular choice in fencing due to their durability, longevity, and resistance to environmental factors. These posts are made of concrete, a mixture of cement, aggregate (sand and gravel), and water. There are various types of concrete fence posts, each with its own set of advantages and disadvantages. The different types, special lightweight concrete uses, designs, surface finishes, costs, and a guide to building your own forms and pouring your own concrete fence posts on-site for big jobs is provided below.

• Slotted Concrete Fence Posts: These posts have precast slots that allow for easy installation of wooden, plastic, fiberglass, or metal fencing panels. The slots run the entire length of the post, providing additional stability.
• Morticed Concrete Fence Posts: These posts have mortice holes for attaching fencing panels using brackets. This type is ideal for various fencing materials like wood, plastic, fiberglass, metal, and concrete.
• Recessed Concrete Fence Posts: These posts have recessed areas for attaching fencing panels flush with the surface of the post. They are suitable for a more contemporary look and work well with different types of fencing materials.
• Corner and End Concrete Posts: These posts are designed for use at the corners or ends of a fence line. They come in various styles to match other posts in the fence line.
• Lightweight Concrete Fence Posts: These posts are made from a special lightweight concrete mix that provides the same strength and durability as traditional concrete but at a reduced weight.

Surface Finishes

• Smooth Surface: A smooth finish gives a clean, modern appearance to the fence post. This finish is achieved by using fine aggregate in the concrete mix and using a smooth form during casting.
• Exposed Aggregate: An exposed aggregate finish provides a more textured and natural look. This finish is achieved by removing the top layer of cement paste, revealing the underlying aggregate.

Concrete Fence Posts: Advantages

• Durability: Concrete fence posts are virtually indestructible and impervious to the elements, making them an ideal choice for long-lasting fencing solutions.
• Low Maintenance: These posts require little to no maintenance once installed, as they do not rot, warp, or succumb to insect damage.
• Fire Resistance: Concrete is a non-combustible material, providing added protection against fires.
• Versatility: Concrete fence posts can support a variety of fencing materials, including wood, plastic, fiberglass, metal, and concrete.

Concrete Fence Posts: Disadvantages

• Weight: Concrete fence posts can be quite heavy, making them more challenging to transport and install.
• Cost: The initial cost of concrete fence posts can be higher than other alternatives, such as wooden or metal posts.
• Aesthetic Limitations: While there are various designs and finishes available, concrete may not suit everyone's taste or design preferences.

Costs

Design the form: Determine the desired size, shape, and finish of the fence post, and create a blueprint for the form.

• Build the form: Using plywood or other suitable materials, construct a form that matches the design of the fence post. Ensure that the form is sturdy and properly sealed to prevent concrete leakage. Using aluminum forms for concrete offers several advantages, particularly in terms of efficiency, durability, and ease of use. Aluminum forms are lightweight and easy to handle, allowing for quicker setup and removal compared to traditional wood or steel forms. This not only speeds up the construction process but also reduces labor costs. Furthermore, aluminum forms are non-porous and non-absorbent, which helps maintain a consistent moisture level during the curing process and results in a higher quality finished concrete surface. Additionally, aluminum forms are highly resistant to corrosion and wear, ensuring a longer lifespan and better cost-effectiveness over time. Overall, aluminum forms provide a reliable and efficient solution for concrete construction projects, contributing to improved productivity and superior results.
• Mix the concrete: Create a concrete mix with the desired proportions of cement, aggregate, and water. For lightweight concrete fence posts, consider using lightweight aggregates such as expanded clay, shale, or slate, which will reduce the overall weight of the concrete mix without compromising its strength and durability.
• Pour the concrete: Pour the concrete mix into the form, ensuring that it fills all corners and spaces evenly. Use a trowel or similar tool to smooth the surface and remove any air bubbles trapped within the mix.
• Cure the concrete: Allow the concrete to cure in the form for the recommended time, which is typically between 24 to 48 hours for the initial set, and up to 28 days for full strength. Keep the concrete moist during the curing process by regularly misting it with water.
• Remove the form: Carefully remove the form from the cured concrete fence post. For exposed aggregate finishes, use a brush and water to remove the top layer of cement paste and reveal the aggregate beneath.
• Install the fence post: Dig a hole at the desired location, place the concrete fence post in the hole, and fill it with concrete or gravel for additional stability. Ensure that the post is level and properly aligned with the rest of the fence line.

Concrete fence posts offer numerous advantages, including durability, low maintenance, and versatility in supporting various fencing materials. However, they can be heavy and costly compared to other alternatives. For large projects, building your own forms and pouring your own concrete fence posts on-site can be a cost-effective solution.

Concrete Fence Posts