French designers Erwan and Ronan Bouroullec have such a long and creatively productive history with the celebrated textile producer Kvadrat that they’ve become something like family. So when the Danish company decided it wanted to establish a foothold in Los Angeles this fall, the Bouroullecs came up with a concept that’s a little less like a showroom and a little more like a home — literally. We spoke to Erwan about the project, as well as about how textiles change the way people behave, which design elements make a home, the importance of layering, and the power of stairs.