Huge disappointment! 
I've ordered these blinds in size 23 inch X 72 inch. The box says, "Actual size 22 1/2 inch X 72 inch."
When I measured the "actual" width of the blinds, it was 20 1/2 inch. These blinds do not fit my windows. 
I wish it was mentioned on a website, that the "actual size" is different.