In an effort to reduce lag and improve player experience in-game, players are limited to placing 3,900 furniture items within their house. We understand that players wish to create extravagant builds, and we don't want to limit their creative prowess, however, too many items can cause extreme lag which becomes problematic for building too. 

Another furniture limit is placed on the display stands, which is an item in itself that causes extreme lag in large numbers, so users are capped at placing 30 stands.