Here’s a question that sounds simple but trips up more buyers than almost anything else.
What size shed do I actually need?
Go too small and you’re frustrated within a year, cramming things in and wishing you’d spent a little more. Go too large and you’ve eaten up yard space you didn’t need to and spent money you didn’t have to. Get it right and the whole thing just works — you’ve got exactly the space you need, your yard still functions the way you want it to, and five years from now you’re still happy with the decision.
So let’s break it down by how Edwardsville homeowners actually use their sheds — and what size makes sense for each situation.
The 8×8 — Tight but Functional
An 8×8 is the entry point, and it has its place.
If you need somewhere to store a few garden tools, a lawnmower, and seasonal items like holiday decorations or patio cushions, an 8×8 gets the job done without taking over your backyard. It’s also a good fit for smaller lots where space is genuinely limited and you want a shed that doesn’t dominate the yard.
The honest caveat: an 8×8 fills up faster than you’d expect. If there’s any chance your storage needs will grow — or if you’re already thinking “and maybe a workbench” — this size will feel limiting sooner rather than later.
Best for: Small lot homeowners, minimal storage needs, garden tool storage.
The 10×12 — The Sweet Spot for Most Homeowners
If there’s a single size that works for the widest range of Edwardsville homeowners, it’s the 10×12.
You get 120 square feet of usable space. That’s enough to store a full-size lawnmower, a workbench along one wall, shelving for tools and equipment, and still have room to move around and actually find what you’re looking for. It’s also large enough to add a loft for overhead storage if you want to maximize the square footage.
For the average Edwardsville backyard — not tiny, not a half-acre — a 10×12 fits proportionally, stores enough to genuinely clean out your garage, and doesn’t require rearranging your whole outdoor space to make it work.
Best for: General storage, yard equipment, garage overflow, light hobby use.
The 12×16 — When You Need Real Room
This is where a shed starts to feel like an actual workspace.
At 192 square feet, a 12×16 gives you legitimate room to stretch out. Serious gardeners with larger equipment love this size. Hobbyists who want a dedicated space for woodworking, crafts, or projects appreciate having room for tools, a workbench, and materials without everything being stacked on top of everything else. It also works well as a combination storage-and-work shed — one section for equipment, one section for getting things done.
For Edwardsville homeowners on a standard lot with a medium to large backyard, a 12×16 fits comfortably without overwhelming the space. If you’re on the fence between this and a 10×12, think about how you’re actually going to use it, not just what you’re going to store in it.
Best for: Hobbyists, serious gardeners, combination storage and workspace.
The 12×24 and Larger — Dedicated Workshop or Major Storage
Once you get to 12×24 and beyond, you’re looking at a building that can do serious work.
This is the size range for homeowners who want a fully functional workshop — room for large equipment, a proper workbench setup, material storage, and enough floor space to actually run a project from start to finish. It’s also the right call for farm-adjacent properties in the Edwardsville area where equipment, supplies, and seasonal gear add up fast.
Larger sheds in this range can also be divided into zones — a workshop on one side, clean storage on the other — which gives you real flexibility in how the space gets used over time.
Best for: Dedicated workshops, larger properties, farm and equipment storage, serious hobbies.
The Rule That Every Shed Owner Eventually Learns
Buy one size up from what you think you need.
Seriously. It’s the single most common piece of advice that existing shed owners pass along. Storage needs grow. Hobbies expand. That thing you said you’d never keep in the shed ends up in the shed. A little extra square footage costs less at the time of purchase than buying a second shed later — or living with a space that’s always slightly too cramped.
If you’re genuinely torn between two sizes and the budget can handle it, step up.
Let Cardinal Help You Figure It Out
Every backyard in Edwardsville is a little different, and the right shed size depends on your specific lot, your specific needs, and what you actually want the space to do.
Cardinal builds custom sheds, barns, cabins, and garages sized to fit your property and your life. Talk to us before you decide — we’ve helped a lot of Edwardsville homeowners land on exactly the right size, and we’ll give you straight answers, not a sales pitch.
3805 Schipkowski Rd, Edwardsville, IL
Call us today at 618-606-1618
Custom Sheds | Portable Barns | Cabins | Garages
