"Para decorar la sala" in Spanish translates to "to decorate the room" in English. "Para" means for or to, "decorar" means decorate, "la" means the and "sala" means room, or living room.
This sentence is often preceded by different words to mean several things. One way is to say "furniture to decorate the living room," which in Spanish is written as "muebles para decorar la sala." Another way of completing this sentence is "ideas para decorar la sala," which translated to English is "ideas to decorate the living room." Another way to translate "para decorar la sala" into English in context is "on redecorating the living room," being preceded by "quisiera tu opinión," which in English is "use your input."