1.   A girder is a beam that supports other beams or is made up of separate beams joined together.

2.   These small copper alloy balances had an inverted T-shaped beam supported from its centre by a suspension arm.

3.   There was a portico, generally of wood, with posts supporting beams, and decoration was in terracotta.

4.   Then support the beam, right at the break, with a lolly column that has a top plate big enough to span the break.