Preparing A Plastic Shed Base: A Step-By-Step Guide

how to prepare plastic shed base

Plastic shed bases are a relatively new option for forming a shed base. They are easy to install, durable, and can be fitted on all types of surfaces. Preparing the ground is crucial to ensuring the base sits flat and securely on the ground. This involves clearing the area of any lumps, such as vegetation, rocks, or debris, and levelling the ground with sand or gravel. Once the ground is prepared, the plastic shed base panels can be assembled and filled with gravel for added stability.

shunpoly

Choose a level area with enough space for easy access and maintenance

When preparing a plastic shed base, choosing the right location is crucial. Opt for a level area in your garden, ensuring there is sufficient space around the shed for easy access and maintenance. This consideration is important not only for practical reasons but also to comply with building regulations, which typically require a certain amount of space between structures.

It is also essential to be aware of any underground utilities in the chosen area to avoid damaging them during installation. This can be done by contacting your local utility companies and requesting information on any underground pipes or cables in the area. By taking these precautions, you can ensure a safe and smooth installation process.

Before installing the shed base, the ground should be cleared of any lumps, vegetation, rocks, or debris. This step ensures that the base will sit securely and flat on the ground. If the ground is uneven, you can use sand or gravel to level it out. A rake, a long, straight piece of timber, or a spirit level can help you achieve a flat surface.

Additionally, it is important to consider the weight of the shed and its contents. Plastic shed bases are ideal for light to medium-weight sheds. If you plan to store heavy items, the shed may sink into soft ground, causing it to become unstable. Therefore, it is crucial to assess the weight-bearing capacity of the ground and consider a sub-base of hardcore if needed.

By choosing a level area with enough space and taking the necessary preparation steps, you can ensure a sturdy and functional plastic shed base that complies with safety regulations and provides easy access for maintenance.

shunpoly

Clear the area of any lumps, rocks, vegetation, or debris

Before installing a plastic shed base, it is crucial to clear the area of any lumps, rocks, vegetation, or debris. This step ensures that the base sits securely and flat on the ground. If you skip this step, the benefits of using a plastic shed base, such as permeability, may not be as effective.

Start by assessing the ground for any large rocks or lumps that need to be removed. If the ground is uneven, you can use sand or gravel to level it out. A rake or a long, straight piece of timber, along with a spirit level, can help you achieve a flat surface. Additionally, make sure to remove any vegetation, including grass, as it can impact the stability of the base.

If you live in an area with winter conditions, removing the grass layer is essential. However, if your region does not experience winter, you may be able to get away with keeping the grass as long as the ground is reasonably inorganic and hard. Nevertheless, clearing the grass is generally recommended to prevent issues with moisture and weed growth, which can damage your shed over time.

Once the area is cleared, you can further prepare the ground by laying a weed membrane or a layer of landscape fabric, also known as a geotextile membrane. This additional step will provide a stable foundation and prevent weeds from growing and damaging your shed from below.

Overall, taking the time to clear and prepare the ground before installing your plastic shed base is crucial for ensuring the stability and longevity of your shed.

shunpoly

Level the ground with sand or gravel

Leveling the ground with sand or gravel is a crucial step in preparing a plastic shed base. Here's a detailed guide on how to do it:

Choose the Right Location:

Start by selecting an appropriate location for your shed base. While you can lay it on grass, ensure the ground beneath is strong enough to support the weight of the base and the shed. Avoid low-lying or swampy areas, as they may be challenging to work with and susceptible to excessive moisture, affecting the shed's durability.

Measure and Mark the Area:

Use a tape measure, pegs, and string to define the area for your shed base. Make sure to allow for a perimeter around the shed. A common recommendation is to have a shed pad that is 12" wider than your shed on all sides. For instance, a 10' x 12' shed should sit on a 12' x 14' gravel pad.

Excavate and Level:

Begin by removing any sod or topsoil from the marked area. You can use a spade or a skid steer, depending on the scale of the project. Ensure the depth is sufficient for your shed size; a minimum of 4" to 6" of gravel or sand is recommended, with larger sheds requiring more depth. If your shed is on a hill, you may need to build a retaining wall or level the area using a laser level.

Prepare the Base Material:

Before adding gravel or sand, some people choose to lay landscape fabric, weed barrier fabric, or a geo-textile membrane. This step is optional but can help prevent weeds from growing into your shed base and provide more stability by separating the gravel or sand from the dirt below. Ensure the fabric is slightly larger than the interior area of your shed pad, and staple it to the inside of the perimeter.

Add and Level Gravel or Sand:

Now, you're ready to pour gravel or sand into the prepared area. Spread it evenly, ensuring it is level. Use a tamper or compactor to compact the material and create a solid surface. You can check the level using a common level or a laser level. If adjustments are needed, use gravel or sand to create a level surface.

Remember, this is a simplified guide, and each project may have unique requirements. Taking the time to prepare your shed base thoroughly will ensure your shed has a solid foundation and lasts for years to come.

shunpoly

Lay down a weed membrane and landscape fabric

Laying a weed membrane and landscape fabric is an important step in preparing a plastic shed base. This step helps to suppress the growth of weeds below your shed, preventing weed-related moisture damage to the shed. It also provides a stable foundation and stops the shed base grids from migrating through the sand layers.

To begin, roll out the weed membrane over the entire area where the shed base will be laid. Ensure that the ground is clear, firm, and level, filling in any low points and levelling off high spots. Trim any excess membrane around the edges and perimeter.

Next, lay out the landscape fabric or geotextile membrane. This layer will further inhibit weed growth and protect the shed from moisture damage. Ensure the landscape fabric is securely laid over the entire area, trimming any excess fabric as needed.

By taking these steps to lay down a weed membrane and landscape fabric, you will create a stable and protected foundation for your plastic shed base.

shunpoly

Assemble the plastic grid base panels and fill with gravel

When preparing a plastic shed base, it is important to first select an appropriate area. While you can lay the base on grass, ensure the ground beneath is strong enough to bear the weight of the base and the shed. Avoid uneven or boggy areas, and use a set square or spirit level to check that the ground is level.

Once you have chosen the location, it is time to assemble the plastic grid base panels and fill them with gravel. Start by placing the plastic shed base in one corner of the levelled area. The panels should be pre-assembled and simply need to be clicked together as you move away from the corner to create the required area.

After connecting the panels, it is time to fill them with gravel. You will need around 8kg of gravel or angular aggregate to fill each panel. Use a rake to distribute the gravel evenly, ensuring that all the gaps and spaces are filled. Once the gravel has been spread across the grids, compact it down to ensure a stable and even surface. You can use a wacker plate or similar tool to gently compact the gravel.

Finally, use a broom or rake to smooth out the surface and remove any excess gravel. You can also backfill around the edges of the base with a 60:40 compost or soil sand and seed blend to help it blend in with the rest of your garden.

Frequently asked questions

You will need a plastic shed base, geo-textile membrane, membrane U-pins, shed base anchors, angular gravel or crushed aggregate, decorative gravel, and sharp sand.

Choose a level area in your garden with enough space around the shed for easy access and maintenance. Ensure there are no underground utilities in this area. Clear the area of any lumps, vegetation, rocks, or debris. If the ground is uneven, use sand or gravel to level it out.

Place the plastic shed base in one corner of the levelled area and click each panel together as you move away from the corner to create your required area.

Fill all the panels with angular gravel or angular aggregate to create a solid and flat surface for your shed.

Plastic shed bases are easy to install, durable, and lightweight. They are resistant to rot and weather damage, and they do not hold moisture like a concrete base.

Written by
Reviewed by

Explore related products

Share this post
Print
Did this article help you?

Leave a comment