One of the most important aspects of a new mini barn is its foundation. The foundation is so important due to the fact that its main function is to transfer any weight to the ground, including the shed’s weight as well as its contents.

There are also several other critical functions that the foundation serves:

  • If necessary, it offers a way to keep your shed level
  • It protects the floor of the shed from moisture
  • It protects the shed against termites
  • It can also help to protect a shed from movement that is caused by wind, water or frost.

It can also be difficult to fix a foundation. It is a dirty job and you don’t want to have to fix it twice because it wasn’t done right the first time.

No matter how well your mini barn is constructed, if it has a weak base then it won’t last for very long. An on-grade foundation can support most sheds, which are comprised of either pressure-treated wooden timbers or concrete blocks that are set right on the ground. The timbers or concrete blocks (which are also called skids) need to be closely spaced together and level in order to support the floor frame of the shed correctly. It is very important that solid concrete blocks be used, since hollow ones have a tendency to crack.

A shed should never be constructed in low-lying, wet areas. Also if there is any rainwater runoff in the area of the site, then you should put down 2 to 4 inches of gravel to set the timbers or blocks in to protect your foundation against erosion.

Since it is so critical, we have prioritized shed foundations in terms of what is most important. This will help you ensure that your shed is long lasting.

Flat Ground

The least expensive and fastest option is just to place your shed directly on the ground. However, there are some disadvantages to this method.

First of all, exposed dirt can get the things stored inside of your shed dirty. Also, water can end up seeping through the ground and into your shed and get everything wet. Moisture can cause corrosion and rot which over the long run will wear out your shed.

When plastic and metal sheds are placed on the ground, usually they are kept in place with tent pegs or metal stakes that are attached to the shed’s sidewalls. Longer anchors provide more stability.

Fabric sheds have been designed to be placed on dirt. All of the anchors that are needed come with them. One advantage to fabric construction is they are forgiving of movement unlike plastic, metal, wood and other rigid materials which are not flexible or forgiving.

Since most yards are uneven, placing a shed directly on the ground may affect the way that the panels fit together and also the way that the windows and doors operate. This can result in your shed having a shorter lifespan.


Are you searching for an easy and inexpensive method? Gravel is an easy shed base solution, and it works very well with medium and small storage sheds, especially fabric, plastic and metal sheds. Once you have all of the materials on hand, it should only take you about 2 hours to complete the process depending on how large your shed is.

A 2 to 4 inch deep hole just needs to be dug that is the same shape as your shed. Next pour crushed rock or gravel inside of the hole. As you are pouring in the gravel, continue to press it down by either applying something heavy or stepping on top of it.

Your shed can be attached to the gravel directly using either auger anchors or pegs. The longer your anchors are the better. Gravel can also provide other types of foundations with suport, including concrete slabs and wooden frame foundations.

This is a better option when compared just putting the shed onto the straight ground. However, there are also some disadvantages to it. For instance, it could get wet inside and will be very cold.

Manufacturer’s Kit

You can construct some sheds out of a foundation kit. They usually are placed directly on the ground, although they can also go on gravel.

It is necessary to install these kits on a level and flat surface. This will ensure that the doors work and the panels fit together properly. They will work the best if they are placed on a flat surface. Trying to make alterations to one of these kits so that it can be on a flat surface is harder work than is worth it.

If you decide to use a kit, just be aware that you might have to buy some extras such as plywood. If you are on a strict budget, just keep in mind that using a kit could end up costing you more money than what the list price is.

These types of kits come in various sizes so choose one that suits your shed size the best.
This is a tailored and easy storage shed solution. Assembling your kit should take around 2 hours.


An excellent way of obtaining a strong base, inexpensively and quickly. Large pavers can be purchased from hardware stores such as Lowes and Home Depot. After you have gathered all of the supplies that you need, it is possible to lay a paver foundation in under 2 hours.

You just need to put down some brickies sand or gravel and then make sure the area is level. For waterproofing your shed, put some plastic down and then put some pavers on top of it. Dyna-bolt the shed to the pavers in order to secure it.

Pavers work better with gravel, but you can also place them on level, flat ground. If you first put down a layer of gravel, it can help prevent the pavers from sinking. Smaller pavers are more likely to sink than larger pavers are.

The best use for pavers are with smaller types of storage sheds. The advantages are that they are really durable and keep your equipment off of the dirt. Also, they stay down once they are down.

Timber Frame

Timber frame bases are a very popular choice for sheds. It is fairly easy to level them, they offer a strong platform and they are easy to assemble.

Your frame needs to be made out of lumber that is suited for outdoor use. Two of the more common ones are treated cedar and pine. It is easy to build the frame after you have the right lumber. You just need to cut it to the right size and then screw it all together.

Timber frames can go on the ground directly, however, this isn’t recommended. Pavers and piers are the two major ways that timber frames can be placed on the ground.

Piers And Pavers

Piers are a type of support that gets dug inside of the ground and are set to a level and common height. The frame sits over the ground. Piers can be concreted into the ground in order to strengthen them.That helps to increase the life of the foundation and spread the load as well.

The biggest advantage that piers offer is that the shed sits over the ground, so it is always dry. Getting piers set up properly can take some time. However, compared to a concrete slab, it still is less expensive on a per square foot basis.

You can use pavers for leveling up a shed and they will work very well. They can be an inexpensive solution, particularly if you happen to have some already. They are an easier and faster solution than piers are, and you can also move them later on if you want to. The drawback to them is that it is difficult to get the frame fixed onto the pavers.

Concrete Slab

Concrete offers a shed a flat and strong base. In addition, its weight helps to keep the shed attached securely to the ground. It offers a strong base for attaching things, including shed walls.

If you are considering having a concrete foundation, it needs to be planned out in advance. It takes a month at least for concrete to completely set, although you can start working on it within 5 to 7 days. Although it is possible to do it on your own, a concrete builder or landscaper can also help you. It will take about 4 to 6 hours to complete the project (other than drying time).

Concrete slabs are maybe the best and strongest foundation for a pool house, portable garage or mini barn. However, a professional should install it and that can add more expense to your project.

The main advantage that a concrete slab is that your shed will not shift or settle. If you are searching for a large shed or planning on storing heavy equipment such as bags of supplies, mowers or tractors, then your best option is a concrete slab foundation.

You also can go without wooden floors as the slab can be used for the shed floor and the walls can be set on the slab as well. Your concrete slab and storage shed need to be the same width. The slabs needs to be no greater than 1/4-inch out of the square.

Overall, a concrete slab is the best type of foundation for any kind of shed, as long as you have the money and time for it.