The singer-and-actor has teamed with his interior designer Estee Stanley for a home collection for HomeMint and has been very thorough with his research.
He said: "I`ll sit and I`ll look at hardware for hours. Literally, for hours, I`ll sit and compare hardware. The devil`s in the details. I mean, it`s your home, it has to be your own."
Justin - who is engaged to Jessica Biel - insists everything in the collection for the online retailer is something he and Estee would be happy to have in their own homes.
He told Elle Decor magazine: "If we wouldn`t put it in our homes, we`re not going to ask people to put it in theirs. You don`t have to spend your whole bank account to make your home look amazing but also be comfortable and reliable.
`I like very clean, almost modern architecture, and the obstacle with something like that is making it extremely warm, because it doesn`t naturally lend itself to that. With everything we do together, we try to get the juxtaposition right."