VEVOR Self Adhesive Vinyl Floor Tiles 36 x 6 inch, 36 Tiles 2.5mm Thick Peel & Stick, Light Gray Wood Grain DIY Flooring for Kitchen, Dining Room, Bedrooms & Bathrooms, Easy for Home Decor

A 12 ft × 12 ft room is 144 sq ft. Each box covers 54 sq ft (36 tiles × 1.5 sq ft per tile). You would need 3 boxes to cover the room (162 sq ft total coverage).

These 36 building blocks can cover a space of 5 square meters.