Buying & Decisions
What size shed do I actually need?
The honest answer: most people buy a shed that's one size too small. A quick method — walk your garage or storage pile, measure the footprint of the big items (mower, workbench, bikes, totes), lay it out on paper, then add room to walk around it and about 25% extra for the things you'll accumulate.
As a rough guide: a 8×12 handles basic yard tools and a push mower; a 10×16 fits a riding mower plus shelving and a workbench; a 12×20 or larger starts to work as a real workshop or garage. When you're between two sizes, size up — the price difference is small next to the regret.
Why it matters
Sheds get full fast, and you only buy the building once. The cost gap between a 10×12 and a 10×16 is a small share of the total, but that extra length is the difference between cramming things in and actually using the space.
Size also affects delivery and placement, so getting it right up front saves you from buying a second building in two years.
Real examples
The mower test
If you own or plan to own a riding mower, start at a 10×16. A 10×12 fits the mower but leaves almost no room for anything else once you add a deck and turning space.
The 25% rule in action
One customer filled a 10×14 the first weekend. Had they added 25% to their list up front, they'd have landed on a 10×18 and still had breathing room a year later.
Common mistakes
- Measuring only what you own todayStorage needs grow. Plan for the tools, bikes, and totes you'll add over the next few years, not just what's in the pile now.
- Forgetting walking spaceA shed packed wall-to-wall is a storage box you can't move around in. Leave aisles so you can reach the back.
- Ignoring ceiling heightTall items and future loft storage need headroom. A higher wall or a barn-style roof can double usable space.
Related questions
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