K'Nex flat truss (parallel chord truss) — Have students assemble ... not on edge) as a simple beam bridging the span between the chairs. Ask students: Could the 30-inch yardstick simple beam ...

In 1952 in NYC, I saw what I now know to be parallel chord wood trusses being used as roof beams in a supermarket I immediately saw that they would have far less resistance to fire than three-inch ...

or with the problematic parallel chord truss designs with undersized metal plates that connect beams, might benefit from an inspection. "If you have good drainage, there's not too much to worry ...

Timber beams and trusses provide a rustic warmth for retail store ... Along each side wing are 56-foot single tapered trusses with a clear span at one end, supported by 32-foot parallel chord trusses ...