An Easier Way to Design Floating Stairs – Products, Molding Millwork And Trim, Walls And Ceilings – Builder Magazine

Stair Ways

Architect Jonathan Feldman knows the trick for creating floating stairs at a fraction of the cost.

  • Image

    Credit: Paul Dyer Photography

Credit: Paul Dyer Photography

  • Image

    Credit: Paul Dyer Photography

Credit: Paul Dyer Photography


Staircases have often added a dramatic touch to a house, but in recent years architects and designers have discovered that there is also a practical and very important use for the contemporary floating version.

“[Floating stairs] can be very dramatic,” says architect Jonathan Feldman, principal of San Francisco–based Feldman Architecture. But because they float, he adds, “Light can filter through them. It’s one of the great architectural opportunities in a building.”

The problem for some builders, however, is that floating stairs are not easy to execute. “They require real skill, they need good structural support, and because of the codes, they usually require tight tolerances,” says Feldman, who often designs his homes with this type of staircase. “[They are] often a challenge for builders and contractors and usually expensive for homeowners.”

But the quasi-floating stair Feldman designed for this 1860s house in San Francisco’s Bernal Heights neighborhood is an exception to the rule. Instead of the typical structural support for a floating staircase, Feldman specified standard 2×4 and 2×6 stud framing, which was covered in traditional drywall.

The architect then put in place 3-inch-thick oak treads, screwing them into the framing below and cantilevering them over the structural support. “The treads were thicker than they needed to be,” the architect says.

Not as visually heavy as a traditional treatment, the completed staircase permits light to filter down to the living areas on the first level. Plus, Feldman detailed the installation with 12½-inch-by-24-inch slate wall panels that snap into place with adhesive. But the best part of the whole process is that Feldman’s staircase design cost 75 percent less than a typical floating version.


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General Contractor-Green Builder-Home Improvement Specialist- StLouis MO -Build a Green St Louis! Solar + Energy Conservation