closure bar

closure bar

Of a stair, a flat metal bar connected to the top and/or bottom surface or edge of a stringer along a wall; used to close gaps between the stringer and the wall.
References in periodicals archive ?
Spout closure bars, now available on Spiroflow bulk bag discharge systems, are a multi-functional feature designed to bring convenience and safety to FIBC handling, as well as dust-free discharge.
The closure bars thousands of Palestinians from jobs in Israel and is straining the Palestinian economy.