How many days it takes so you're permited to post a similar offer

Hi guys.
Suppose I post an offer about selling furniture.
How many days have to pass till I can post a similar thread?

 

First of all, you can't post here to sell furniture.

Second, you can't post a similar sales thread if you're selling the same thing. You cannot bump the previous thread, and you cannot start a new one. If you want to bring attention to it when it's older, put a link in your signature.