About ShedSizer
ShedSizer exists because the most common shed mistake is buying one size too small, or a shed whose door will not take the mower it was bought for. We turn that decision into numbers: what you own, how much floor it needs with room to walk, which standard size covers it, and what the foundation, anchors and fit-out will take.
What we publish
- Calculators for shed size, foundation, gravel, anchors, roof pitch, snow load, permit thresholds, cost, paint and ramps.
- Size pages that draw common loads to scale on every standard footprint.
- Spec pages for every kit we track, and roundups with picks at three budgets.
- Complete builds with every part priced, and reference charts.
How we work
We research. We do not run a test warehouse, and we never claim hands-on testing. Figures come from manufacturer specifications and listings, published code references such as the International Residential Code and ASCE 7, and recurring themes in verified owner reviews. Our methodology page explains each source and how calculators handle missing data.
How we make money
Links to Amazon are affiliate links: if you buy through them we may earn a commission at no extra cost to you. It never changes which product we recommend, and several pages tell readers to buy a smaller or cheaper shed than they came for.
This page is researched guidance, not professional engineering, legal or building-code advice. Sizes, loads and permit rules vary by product and by town: check your local code and the kit manufacturer's instructions before you build.