How To Replace A Floor In A Shed

How To Replace A Floor In A Shed
  • Author: Amanda Arnold
  • Posted On: October 15, 2022
  • Updated On: August 21, 2023

Although replacing a shed floor is not a simple task, you may make it simpler for yourself by adhering to common sense principles. But common sense is curious; sometimes, it escapes our notice unless someone else does.

Here is some sage advice to remember when replacing the floor of your garden or wood shed. The task will become simpler and more fun as a result. A shed floor must be designed, put in, and maintained properly to prevent rotting.

Moisture from rain, wear and tear from frequent use, and general aging are the main causes of rot in a shed floor. To resist wood rot and mold, a shed floor must be pressure-treated. Before making any adjustments to the floor or the rest of the structure, identify the root of your current issue.

What Are The Main Reasons Behind Damaged Shed Floor?

All species of wood absorb water. Mold and fungus love moist, poorly-dried wood because it provides the ideal environment for their growth. These bacteria feed on wood. Thus it needs to be preserved and kept dry.

Mold, mildew, and fungi devour moisture, which causes it to decay, which is how wood rot begins. These pieces of the shed floor typically need to be removed as the rotting begins—otherwise, mold, mildew, and fungus risk spreading.

If the same type of wood is prone to the issue that led to the floor’s breakage in the first place, replacing the floor with the same type of wood makes no sense. Try using different building materials or digging the earth out a little before you start if your shed floor is relatively low to the ground in an area that frequently remains moist.

The damage will render the wood spongy and crumbly even after the shed floor has dried out and the fungus and mildew have maybe disappeared. It is dangerous to walk on wood floors that are deteriorating. Thus they should be fixed or replaced.

Ways To Replace A Rotten Or Damaged Shed Floor

There are numerous flooring solutions available if your floor cannot be repaired or if you wish to replace it to simplify maintenance.

Pour Epoxy On Shed Floor

This remedy is reasonably priced, and if you get the anti-slip ingredient, you won’t have to be concerned about slipping when it does rain. Epoxy provides concrete with protection and dries to a solid surface.

You will use this floor for years because epoxy is adaptable, available in various colors and finishes, and requires little to no upkeep.

Place Cement Sheets

The decay can be effectively stopped using cement sheets. It is a highly adaptable type of flooring that may be put on top of practically any subflooring, including timber frames, concrete slabs, and hardwood floors.

Cement sheets are strong, long-lasting, and fire-resistant. Additionally resistant to termites, rot, and ants are this flooring material. Because specific tools are required to cut the sheet, cement sheets have the drawback of being pricey. It is, therefore, better to hire a contractor to install them.

Install New Timber

Instead of using cement sheets, it will be less expensive and simpler to remove the old, damaged floor and replace it with treated wood. The only drawback is that lumber is still wood and is prone to decay, mold and moisture retention.

It is possible to prevent these issues by treating the flooring every two years, but this is not guaranteed.

Install Plywood Shed Flooring

The subfloor of a shed is often made of plywood. This is your choice if the others are out of your price range. Although robust, plywood needs to be treated and sealed to prevent rot. Plywood won’t last very long, even if you treat and seal it.

It is particularly prone to mildew, decay, and water retention. Plywood should only be used as a short-term flooring solution.

Install Rubber Mats Or Slate Tiles

Use concrete subflooring and cover it with rubber mats as a certain technique to prevent rot on your shed floor. Rubber mats generally are non-slip, waterproof, rot, mold, and mildew resistant. The drawback of good quality mats being somewhat pricey is offset by the fact that they are cozy to walk on and simple to clean.

Although tiles are more expensive than carpets, they are a great option to replace your deteriorating shed floor. Desirable-quality slate or non-slip tiles are particularly good choices. Since they are waterproof and fire-resistant, tiles offer the advantage of not attracting termites and fungus.

However, you will never have to worry about the floor of your shed rotting again. You only need a concrete basis to install the tile on top of it.


Before you start making purchases or building, estimating the cost of all the components is a good idea. You should measure here as well before cutting. There’s nothing worse than hosting a party for your co-workers or friends and having to dash out to the local hardware store to pick up extra materials or wood that’s the wrong size.

Your stored tools and gear could suffer greatly from a broken shed floor. Your possessions may be harmed by the dampness and mildew, which could be costly. It’s a fantastic idea to take precautions to prevent the shed floor from decaying to safeguard your possessions.

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Author: Amanda Arnold

Amanda has been working with ConstructionHow since 2021. Her experience spans over 5 years in the creative niche such as home decor and trends, landscaping, renovations, and custom architectural values. As a home designer expert, she has a keen eye for the latest home improvement trends with accurate facts that readers find impossible to ignore. Being invested in home-building trends is how she has gained her lucrative expertise exploring more to bring a positive ambiance for all homeowners (and even tenants!). Currently, she lives in a beautiful beach home, a source of fascination for her.