Hammer Beam Truss
This hammer beam style of design is often considered the “most spectacular endeavour of the English Medieval carpenter” and can make for a spectacular and impressive ceiling.
Effectively, the tie-beam has had the middle cut out of it and raised up. It is supported by posts and braces. The two ends of the tie-beam that remain are called the hammer beams. Large scale roofs may have multiple hammer beam configurations.
Here is an example of a Timberworks Hammer Beam style frame before it has been roofed in.