Nestled between an existing concrete wall at right and the new reading loft at left is the entrance staircase, which Colkitt sheathed in rusted steel panels. He used Homasote, invented in 1909 and made from recycled post-consumer paper, for the work board at right and elsewhere in the space. “You can drill on it or tack onto it, and it’s more flexible than drywall,” notes Colkitt. Beneath the new reading loft, which is clad in drywall and set between the wall and the staircase, is a new hallway and dressing area leading to the bathroom. Photo by Cheryl Ramsay.  Clever Loft Spaces for Small Places by Diana Budds from Design Guide: San Diego