Should fence posts be cemented in or gravel put the holes ?

The best method for securing fence posts depends on soil conditions and the type of fence being installed.

Cementing fence posts

Cementing fence posts provides a strong and secure hold for the posts, especially in loose or sandy soils. Here's how to properly cement fence posts:

1. Dig holes: Dig holes for the fence posts at least 1/3 of the post's length deep.

2. Post placement: Place the fence post in the hole with the correct spacing between posts. Make sure the post is vertical and aligns with the desired fence line.

3. Add gravel or concrete mix: Add a layer of gravel or concrete mix around the bottom of the post inside the hole. This helps stabilize the post and prevents direct contact between the wood and the soil, reducing the risk of rot.

4. Mix cement: Prepare the cement mixture according to the manufacturer's instructions.

5. Pour concrete: Carefully pour the cement mixture around the post, filling the remaining space in the hole. Ensure that the cement completely surrounds the post.

6. Level the post: Use a level to ensure that the post is straight and plumb. Adjust as needed.

7. Allow to set: Allow the cement to set and cure for the specified time before moving on.

Using gravel

In areas with well-draining soil or rocky terrain, using gravel instead of cement can provide a stable base for fence posts. Here's how to use gravel:

1. Dig holes: Dig holes for the fence posts as mentioned above (at least 1/3 of the post's length deep).

2. Post placement: Place the fence post in the hole and ensure that it is vertical and aligned with the desired fence line.

3. Add gravel: Add a layer of coarse gravel (such as pea gravel) at the bottom of the hole, around 4-6 inches deep. This gravel layer provides drainage and improves stability.

4. Backfill: Backfill the rest of the hole with soil, tamping it down firmly to secure the post.

Considerations

The choice between cementing or using gravel for fence posts depends on several factors, including:

- Soil conditions: Cement is recommended for loose or sandy soils that lack structural support. Gravel works better in well-draining or rocky soils.

- Type of fence: For heavy or tall fences that require extra stability, cementing posts is a better choice. For lightweight fences or in areas with frequent frost heaving, gravel may be sufficient.

- Climate and weather: If the area experiences heavy rainfall or frost heaving, cementing posts can help anchor them more securely against movement.

- Budget: Cementing posts is generally more expensive than using gravel due to the cost of materials and labor involved in mixing and pouring concrete.

It's always a good idea to consult with a professional fence installer or a local expert who is familiar with the specific soil and climate conditions in your area to determine the best option for your fence.