Pros, Cons and Sustainable Alternatives
If you’re planning to install a garden shed, one of the first decisions you’ll need to make is what kind of foundation to use. Among the most popular and durable options is a concrete pad – a flat, stable base that provides strong support and protection against the elements.
But is it the right choice for your garden? As a company dedicated to green, healthy lawns, we’ve taken a closer look at both the benefits and drawbacks of concrete shed pads, with some tips for making them more environmentally friendly.
Benefits of Using a Concrete Pad for Your Shed
Protects the Shed Structure
A concrete pad raises the shed above ground level, preventing direct contact with soil and moisture. This is essential in preventing rot, mold and mildew, especially around the base of wooden sheds.
Long-Term Durability
Unlike other materials, concrete doesn’t shift, warp, or decay over time. A well-laid pad provides a permanent, level base that resists erosion, weather changes and heavy loads.
Pest and Weed Control
Concrete helps reduce access for weeds and burrowing pests, which can otherwise creep in under less secure bases like pavers or timber sleepers.
Storm Protection
For areas prone to high winds or heavy rainfall, a concrete base anchors the shed and prevents it from tipping or sinking unevenly over time.
Environmental Drawbacks to Consider
Soil and Ecosystem Disruption
Pouring concrete requires clearing and compacting soil, which can disturb underground organisms, root systems and local micro-ecosystems.
Impermeability
Unlike soil or gravel, concrete doesn’t allow water to pass through. This can affect natural drainage, potentially leading to surface water runoff or pooling elsewhere.
Carbon Footprint of Cement
Cement, the main ingredient in concrete, is a major source of global CO₂ emissions. Its production involves energy-intensive processes that contribute significantly to greenhouse gases.
Loss of Green Space
Once poured, concrete permanently removes that area from being usable for planting or supporting grass and biodiversity – something close to our hearts as lawn lovers!
How to Reduce Your Environmental Impact
Minimise the Size of the Pad
Only pour concrete under the shed footprint – not the whole garden or surrounding area. This reduces the amount of material needed and preserves more natural ground.
Use Concrete Alternatives or Additives
Look for low-carbon concrete blends, or products that incorporate recycled materials (like fly ash or slag) to reduce cement usage.
Opt for Raised Pads with Piers or Concrete Blocks
Instead of a full slab, consider concrete piers or pads at load points. These allow airflow underneath, reduce total concrete volume and disrupt less soil.
Restore Greenery Around the Shed
After installation, reseed the surrounding area with lawn seed or native plants to restore soil cover, support pollinators and reduce runoff.
Concrete pads can be a smart and practical foundation choice for your garden shed – especially when it comes to durability and moisture protection. But it’s important to weigh those benefits against the environmental trade-offs. With careful planning, sustainable choices and a bit of re-greening, it’s possible to find a happy medium between long-lasting performance and lawn-friendly practices.
Looking to reseed around your new shed or regenerate a patch after construction? Check out our lawn seed range here.