This is where you buy materials. I'll put the price and a little info on them.

Brick

€3

Well, you know the size of a brick. Covers 1 square foot. Remember, all rooms have 4 walls

Glass

5€ a foot

Carpet

4€ a foot

Paint

15€ a can

Leather

€10 a foot (2 inch thick as well)

Hardwood flooring

7€ per foot

If there's anything I'm forgetting tell me