I assume this has been dug but haven’t seen it.

Wayfair logistics does ALL of their own LAST MILE shipping on large purchases.

This means no other carrier ( ups, ltl freight, etc) touch their cargo. It is only from castle logistics in Boston.

https://www.furnituretoday.com/business-news/wayfair-taking-control-over-last-mile-delivery/

http://castlegatefulfillment.com/