THE TANDEM
Dual center stringer staircase — our extra wide stair
Our extra wide stair. Two center stringers work side by side under the treads, so a wide stair keeps the floating look without a wall of structure underneath. Engineered for stairs 48 inches and wider.
Specifications
Configuration: Switchback with landing (shown)
Structure: Dual center stringers — twin steel sawtooth plate stringers joined by rectangular-tube cross members
Treads: Thick solid-wood block treads; open risers
Width: 48 inches and wider
Tread species: Light oak, whitewashed oak, and reddish-brown hardwood shown
Railings: Cable railing with a wood handrail and diagonal-bar railing shown; any CAPO Design railing can be paired with The Tandem
LED lighting: Optional pre-installed LED under-tread lighting available; activation is the buyer’s choice — motion detector most common; cascading effects available
Full switchback from the entry
Looking down the stairwell
The twin stringers from below
Cable railing with wood handrail, close-up
Both flights seen from below
HOW IT WORKS
Kits ship anywhere in the U.S. with everything needed to install. Local projects, we coordinate the install on site with you and your contractor.
A note on sales tax: A stair we install for you is priced as a construction job, with no sales tax line for you in Pennsylvania. A stair kit or railing system delivered to a Pennsylvania address is a product sale, so Pennsylvania sales tax applies at the rate for the delivery address — 6% statewide, 8% in Philadelphia, 7% in Allegheny County. Kits shipped to other states are taxed only where the law requires it. Your quote will show the tax once we know the delivery address.