From Official Office Management 101 Wiki
There are currently (Build 0.5.2) 5 levels of furniture on the game, the first one being available at the start.
To unlock furniture levels the player needs to use Company Experience Points.
|Unlock Logo||Experience Points Required||Furniture Level||Furniture Unlocked|
|File:Lvl2 unlock.png||10||Level 2||Office chair, PC, Divider fence, Floor plant, Filing cabinet, Water cooler, Floor lamp, Pink desk lamp, Pink floor lamp, Middle sized black table, Small black table.|
|File:Lvl3 unlock.png||20||Level 3||Couch, Red office chair, Divider wall, Coffee vending machine, Lava lamp, Shelf, Middle sized glass table, Small glass table.|
|File:Lvl4 unlock.png||30||Level 4||Green armchair, Printer, Big painting, Big photo, Christmas lights, Framed photo, Painting, Small painting, Glass door.|
|File:Lvl5 unlock.png||40||Level 5||Red carpet, Small red carpet, Golden chair, Candlestand, Christmas tree, Iron fence, Scented candle, Wreath.|