Apparently they sell 613 variations (mostly different lengths and heights and widths, probably four parts total).
https://www.menards.com/main/outdoors/sheds-accessories/carp...
Of course, Menards sells entire houses (in kit form): https://www.menards.com/main/building-materials/the-project-...
And milk. https://www.menards.com/main/grocery-home/grocery/dairy-eggs...
That's pretty amazing. I didn't think any retailer sold house kits akin to the Sears catalog homes I've read about.
Not a bad price.