Basically, when you start the game, after awhile you find that you are given the "Build" option, which allows you to make better beds. But you can also upgrade your shelf and make a table and chairs. To do this, you must ask Skye how she is doing often, and for me around Day 50 she said that if we had a better shelf, we could store more things, and I was given that option for "Build". Around day 70, she complained that it was tiring to do work on the floor, and you are given the option to offer to build her a table and chairs.