I like the Ivar shelf system from Ikea. It's solid wood and you can adjust the space between shelves as needed. It's also affordable. If you do get the Ivar system then it might pay to also buy containers/tubs (SAMLA) from Ikea as well since they are designed to go together. Otherwise you may end up buying storage containers that do not fit as well. Good luck. It's been over a year and I am still not completely satisfied with my studio but it is slowly getting better.