Transforming your backyard into a haven starts with a rock-solid foundation for your shed. This crucial element will shoulder the weight of your tools, treasures, and memories, ensuring your backyard escape stands strong for years to come. But with so many foundation options available, choosing the right one can feel overwhelming. Worry not, shed enthusiasts! We’re here to guide you through the four top contenders, each with its own unique strengths to suit your needs and budget.

Concrete: The classic champion, concrete offers unbeatable stability and permanence. Imagine storing your prized lawnmower or heirloom tools with complete confidence! While concrete requires precise leveling and digging, its lifespan is practically unmatched, making it the ideal choice for heavier sheds.

Gravel: For a budget-friendly option that thrives on drainage, gravel is your champion. This natural superhero prevents ground moisture from reaching your shed, keeping your belongings dry and protected. Gravel is best suited for lighter sheds and might require occasional leveling, but its affordability and simplicity make it a popular pick.

BaseCore Geocell: Uneven terrain? BaseCore Geocell has your back! This innovative geocell grid tackles tricky slopes and dips with ease. Simply fill its compartments with gravel or crushed stone for a weed-resistant, stable base that’s perfect for most shed sizes. BaseCore Geocell is a game-changer for uneven backyards and offers a level of adjustability that other options lack.

PaveCore: These interlocking plastic grids are the DIY dream team! Create a platform with incredible weight capacity in no time – perfect for smaller sheds and uneven ground. PaveCore’s quick installation and easy adjustments make it ideal for those who want to get building fast. Plus, its eco-friendly construction adds an extra layer of feel-good vibes to your project.

Remember, each of these foundation options deserves a closer look! We’ll be diving deep into the details of each one later, exploring their specific advantages, installation processes, and cost considerations.

Planning for your Shed Foundation: Choose the Base

A lifelong shed only lasts as long as the base you put it on. If you don’t choose the right foundation, it can backfire on you a few years down the road. We’ve seen customers have to invest in new bases or even replacement sheds.

Permeability, durability, and affordability are the 3 benchmarks for effective foundations for backyard projects.

The base must have enough strength to support the portable building without shifting underneath. Also, the best shed bases allow water to drain through its surface rather than splashback for structural damage. And you’ll want it all at a low price.

Purchasing a shed foundation that saves you money in the long run is far better than buying an ineffective base from the getgo.

How Much Gravel Do I Need for a Shed Foundation?

Building a sturdy shed foundation is crucial for keeping your tools and treasures safe for years to come. While gravel is a popular and affordable option, especially for lighter sheds, the amount you need can vary depending on whether you use additional structural support.

Gravel Basics

As a rule of thumb, plan for 6 inches of gravel across your entire shed footprint. This depth provides ample clearance, preventing ground moisture from reaching your shed and causing rust or rot. You can easily find gravel in bags or bulk at local retailers and landscape stores.

Gravel Calculator

Our handy gravel foundation calculator takes the guesswork out of figuring out how much you need. Simply enter your shed dimensions and preferred depth, and the calculator will do the rest.

Less Gravel with PaveCore and BaseCore Geocell

But here’s the exciting part: you can actually use significantly less gravel if you incorporate PaveCore or BaseCore Geocell into your foundation! These innovative products act like grids, distributing weight evenly and preventing settling.

We’ll dive deeper into the details of PaveCore and BaseCore Geocell later, but for now, just know that using them allows you to reduce your gravel depth by up to 70% and shrink the perimeter by a foot. That translates to less material to buy, less time spent shoveling, and ultimately, a more efficient and cost-effective foundation.

How Much Geocell Do I Need for a Shed Foundation?

Forget piles of gravel and intricate calculations – say hello to BaseCore Geocell, the innovative foundation option that’s both durable and versatile! This permeable material delivers long-lasting support for your shed, letting rainwater drain through without impacting its stability.

The Right Depth for Your Needs

Geocell shines for its adaptability. For most lightweight sheds, the BaseCOre HD Geocell 2” provides ample support. But if you’re planning on storing heavier items like ATVs or motorcycles, our 3-inch BaseCore HD Geocell version adds an extra layer of muscle. The best part? Both options require significantly less gravel compared to a traditional foundation – reducing your workload by more than 50%!

Customizable and Reusable

No need to wrestle with awkward panels! BaseCore Geocell panels can be easily trimmed with shears to fit your shed’s exact dimensions, minimizing waste and further reducing gravel needs. And when your shed’s purpose changes, simply reclaim the Geocell system for another backyard project – its versatility extends beyond the shed world!

Simple Math, Stellar Results

Calculating Geocell quantities couldn’t be easier. Forget complex formulas – all you need is your shed’s square footage. This single number tells you exactly how many panels, clips, caps, and geotextile rolls you need for a perfect fit.

Proven Success on All Terrains

Our team has witnessed Geocell’s magic firsthand, helping clients build stable sheds on flat, uneven, and even sloped surfaces. Its adaptability and strength leave traditional foundations in the dust, making it the go-to choice for a worry-free foundation that’s built to last.

So, ditch the gravel mountain and embrace the ease and efficiency of Geocell! With its customizable options, reusability, and minimal calculations, Geocell paves the way for a stronger, simpler, and more sustainable shed foundation.

Shed Base Calculator for Geocell

How Much PaveCore do I Need for a Shed Base?

Ditch the gravel mountains and embrace the streamlined simplicity of PaveCore! This ingenious interlocking paver system lets you build a robust shed foundation without breaking your back or the bank. But how much PaveCore do you actually need?

Here’s the beauty of PaveCore: each 8-pack covers a generous 22 square feet, with each panel measuring roughly 21×21 inches. These packs come with 8 panels, making calculations a breeze. Simply grab your shed’s footprint in square feet, divide by 22, and round up – that’s the number of PaveCore packs you’ll need! No complex formulas, just simple division and you’re ready to lay your foundation.

Remember, PaveCore works best on flat surfaces due to its fixed panel system. So, pre-leveling your ground might be needed for optimal results. But once that’s done, installation is a breeze – just snap the panels together like building blocks, and voila! Your sturdy, weather-resistant base is ready for your shed to take root.

How Much Concrete Do I Need for a Shed Foundation?

Finally, you can opt for a concrete base, which is what most shed manufacturers and builders recommend. The price upfront is expensive but it provides excellent durability, preventing ground shifting.

You’ll construct a lifelong shed base with a concrete slab or pier, but it will require repair work due to cracking.

Comparing Different Base Materials with the Calculators

By utilizing the calculator, you can make an informed decision about the most suitable base material for your shed, ensuring a strong and long-lasting foundation. Here’s a comparison:


  • Pros: Known for its durability and longevity, making it an excellent choice for heavy sheds or those facing harsh weather conditions.
  • Cons: It’s the most expensive option and requires significant labor for installation. Repairing cracks or damage can also be challenging.
  • Difficulty of Installation: Difficult, often requiring professional assistance.
  • Suitability: It can be adapted to various soil types and weather conditions.


  • Pros: Cost-effective, easy to install, and promotes drainage. It’s also a more environmentally friendly option due to its permeable nature.
  • Cons: It’s slightly more time consuming to install than gravel alone
  • Difficulty of Installation: Easy, often manageable for DIY enthusiasts.
  • Suitability: Best suited for well-draining soil conditions.


  • Pros: Cost-effective, DIY-friendly install, promotes drainage, eco-friendly.
  • Cons: Requires level ground, slightly longer install time.
  • Suitability: Well-draining soil, light to medium loads.
  • Difficulty: Easy, primarily leveling ground and minor trimming (if needed).


  • Pros: Affordable, widely available, and easy to level. It offers good drainage and can be a suitable choice for smaller sheds.
  • Cons: It requires regular maintenance, such as compacting and adding more gravel over time. It’s also less stable than concrete and not ideal for uneven ground.
  • Difficulty of Installation: Easy, often manageable for DIY enthusiasts.
  • Suitability: It can be adapted to various soil types and weather conditions, but might require additional leveling efforts for uneven ground.

The Shed Base Size Calculator can help you compare these options based on:

  • Cost: It considers the material costs, labor expenses, and any necessary equipment rentals.
  • Difficulty of Installation: It assesses your DIY skills and experience, suggesting materials that align with your comfort level.
  • Suitability for Different Soil Types and Weather Conditions: It takes into account your specific soil type and climate, recommending options that will perform well in your area.

Challenges of Choosing the Right Shed Base Size

Setting up a sturdy and stable shed starts with picking the right base material, but it doesn’t end there. Determining the correct base size throws down its own set of challenges, and navigating them can feel like a riddle wrapped in a mystery inside an enigma (especially if you’re not a seasoned DIYer). Let’s delve into the common roadblocks you might encounter on your quest for the perfect base size:

  1. Size Miscalculations:
    Underestimating the shed’s footprint: Omitting overhangs, gutters, or future add-ons like benches can leave you with a base that’s too small, compromising stability and causing overhangs to rest on unsupported ground.
    Ignoring local building codes: Regulations often dictate minimum base sizes based on shed dimensions and snow load factors. Failing to account for these can lead to fines or even require costly base reconstruction.
  2. Materials:
    Different materials, different needs: Concrete bases require additional space for frost heaving and drainage, while gravel bases might need extra room for compaction and settling. Misunderstanding these material-specific needs can lead to an unstable or uneven base.
    Soil Surprises: Ignoring your soil type can be a recipe for disaster. Clayey soil tends to expand and contract with moisture, potentially cracking a concrete base, while sandy soil might not provide enough support for heavier sheds.
  3. Weather:
    Hydrologic headaches: Not factoring in rainfall, snow load, and drainage can lead to a waterlogged base. This can weaken the foundation, cause flooding, and even attract unwanted pests.
    Windy worries: High winds can topple an inadequately anchored shed, so ensuring your base size provides enough surface area for proper anchoring is crucial, especially in windy locations.
  4. Future Proofing Considerations:
    Growth mindset: Planning for potential future expansions or heavier storage needs can save you trouble down the line. Choosing a base that barely accommodates your current shed might necessitate costly modifications later.
    Accessibility oversight: Skipping accessibility considerations, like wheelchair ramps or wider entryways, can make your shed less functional in the future. Integrating these needs into the base size planning ensures a more inclusive and usable space.

Calculate Your Shed with a Backyard Specialist

Even with using the calculators, you can receive a much more comprehensive quote and project evaluation from a specialist. They can evaluate the shed size, landscape, and other factors to recommend the best base selection.

Our team specializes in geocell foundations for sheds, gazebos, and other backyard projects. We’d be glad to explain more about the base and how you can use it for a shed that lasts your family a lifetime.

To speak with a backyard specialist and finish your shed as soon as possible, give our team members a call. You can reach us at (888)-897-2224 for a free project consultation.