stringpiece

[ string-pees ]

/ ˈstrɪŋˌpis /

a long, usually horizontal piece of timber, beam, etc., for strengthening, connecting, or supporting a framework.

Origin of stringpiece

First recorded in 1780–90; string + piece

While talking he had gone across the gap, stepping lightly upon a stringpiece probably a foot wide, and proceeding over the ties.

American Adventures |Julian Street
Doubtless that was the time the Bradys saw him bending over the stringpiece.

The Bradys' Chinese Clew |Francis Worcester Doughty
He clambered over the stringpiece, right at the heels of his impatient but grateful passenger.

The Depot Master |Joseph C. Lincoln
The starboard quarter grated against the piling, and the open stern windows overhung the stringpiece for a moment.

Gold Out of Celebes |Aylward Edward Dingle

The distance was seven or eight feet, but she cleared it and landed on the stringpiece.

Ruth Fielding at Lighthouse Point |Alice B. Emerson

stringpiece

/ (ˈstrɪŋˌpiːs) /

a long horizontal timber beam used to strengthen or support a framework