But after many nights of being deep in door research, I came across my unexpected source of inspiration: a 1950s ad for ...

As ingenious solutions for environments that require additional space and ventilation, articulated or accordion doors and windows operate by folding their leafs one over the other and onto the ...

Dear James: Our swinging doors use a lot of wall space when open. Our house is small, so we want to install sliding or folding doors. Which design is better and how are they installed?

But after many nights of being deep in door research, I came across my unexpected source of inspiration: a 1950s ad for accordion doors on Pinterest. Accordion doors are exactly what they sound ...