Am I missing something? The site says this chair has a seat height of 18.5". 
I'm measuring way less  at 14.5" with the base attached.
Update: I requested a return of this item and the service I got from Wayfair was absolutely appalling. Initially, they wanted to charge me for a return due to their website inaccuracy and I had to fight that. Then they became completely unresponsive (multiple days with no response) and also unwilling to come  take back the item until I had to fight more. 2020 has been rough enough, I did not need that added stress. No thank you. I will never. Repeat, NEVER, purchase from Wayfair ever again and have directed all friends and families to stay far away! I've also added the photo of the website description that existed when I bought the couch because I'm sure they'll change it.