Method
How we update this catalogue
The catalogue was last updated on September 18, 2026. Everything below is what that pass does and what it does not.
What we update, and how often
Prices, availability and the ratings figures are refreshed in one pass over the whole catalogue on a schedule. A size with no live offer comes off the site at the next build rather than staying up with a figure nobody is standing behind, and it comes back on its own when it is available again.
Figures on this site come from our last catalogue update. If a price differs at checkout, the checkout price is the one that counts.
Where the measurements come from
Capacities and outside measurements are the brand's own figures, and we publish the ones that belong to the size you are looking at. That distinction matters here more than usual: a product title often carries the largest size in its family, so a box described as sixty-seven cubic feet can measure fifty-two in its own specification. We take the number from the size, not from the title.
Where a measurement is the maker's own item field rather than a stated dimension, the page says so. Where we have no figure, the page says nothing instead of estimating.
What we do not claim
We publish no wind rating, no snow load, no lifespan and no certification, because we have not run the tests that would produce them. Where those numbers matter, the pages point at the bodies that publish guidance and say plainly that the local rule decides.
The sources we read
These are the documents behind the cautions on the shed and cabinet pages. Each was opened and read on 2026-09-18, and two earlier candidates were dropped because the pages they pointed at no longer existed.
The counting
Figures printed on the home page and the about page are counted from the catalogue when the site is built: 42 sizes over 60 listed positions. Ratings are added up per product family rather than per size, because one family shows the same pool at every size it sells, and adding them per size would multiply the same reviews.
Corrections
If a measurement here is wrong, write to shedside@zzm-us.com and say which page. We would rather change a number than defend it.