Room Size - Research

 https://www.homebuilding.co.uk/advice/room-sizes-how-to-get-them-right

https://www.ikea.com/gb/en/p/billy-oxberg-bookcase-with-doors-white-s29281066/

https://www.ikea.com/gb/en/p/billy-bookcase-white-90401932/

https://www.ikea.com/gb/en/p/billy-bookcase-white-80263832/

https://www.ikea.com/gb/en/p/melltorp-table-white-s19011777/

https://www.ikea.com/gb/en/p/stefan-chair-white-90339233/

Sofa

EKTORP 3-seat sofa, Hallarp grey - IKEA

Coffee Table

JAKOBSFORS Coffee table, dark brown stained oak veneer, 80 cm - IKEA

Chairs for fireplace

STRANDMON Armchair and footstool, Nordvalla dark grey - IKEA