Close up of the stair structure with features large steel center stringer supporting the 2" thick oak treads with steel riser. Steel stanchions with stainless steel cables and an oak handrail stained to match the treads. All steel is painted black.

Photo Credits: Aaron Leitz

Spiral staircase. We replaced the old one because it did not meet current stair codes. Salter Spiral staircase kit.

Photo: Sean Litchfield

Filippo Polli

Cesar Rubio

Custom fabricated steel 1/2 spiral staircase. Pete Cooper/Spring Creek Design

Rodwin Architecture & Skycastle Homes Location: Boulder, CO, United States The homeowner wanted something bold and unique for his home. He asked that it be warm in its material palette, strongly connected to its site and deep green in its performance. This 3,000 sf. modern home’s design reflects a carefully crafted balance between capturing mountain views and passive solar design. On the ground floor, interior Travertine tile radiant heated floors flow out through broad sliding doors to the white concrete patio and then dissolves into the landscape. A built-in BBQ and gas fire pit create an outdoor room. The ground floor has a sunny, simple open concept floor plan that joins all the public social spaces and creates a gracious indoor/outdoor flow. The sleek kitchen has an urban cultivator (for fresh veggies) and a quick connection to the raised bed garden and small fruit tree orchard outside. Follow the floating staircase up the board-formed concrete tile wall. At the landing your view continues out over a “live roof”. The second floor’s 14ft tall ceilings open to giant views of the Flatirons and towering trees. Clerestory windows allow in high light, and create a floating roof effect as the Doug Fir ceiling continues out to form the large eaves; we protected the house’s large windows from overheating by creating an enormous cantilevered hat. The upper floor has a bedroom on each end and is centered around the spacious family room, where music is the main activity. The family room has a nook for a mini-home office featuring a floating wood desk. Forming one wall of the family room, a custom-designed pair of laser-cut barn doors inspired by a forest of trees opens to an 18th century Chinese day-bed. The bathrooms sport hand-made glass mosaic tiles; the daughter’s shower is designed to resemble a waterfall. This near-Net-Zero Energy home achieved LEED Gold certification. It has 10kWh of solar panels discretely tucked onto the roof, a ground source heat pump & boiler, foam insulation, an ERV, Energy Star windows and appliances, all LED lights and water conserving plumbing fixtures. Built by Skycastle Construction.

Stair well. Walking over the glass bridge. Photography by Ian Gleadle.

Folded plate steel stair. 1/4" Plate folded and applied with a gun metal patina.

Iron Spiral Staircase with cement inserts.