Graphical Construction Glossary >> Roofs and roofing. >> Roof Trusses >> Jointed cruck

Jointed Cruck
A cruck with joints to the main members. To extend the length of the timbers or alter the shapes.
Upper cruck truss.
The upper blades are sat on a tie beam and raise to the ridge.
Base cruck
The cruck blades sit at ground level and rase to be joined to a tie or collar beam.

a jointed cruck truss

There is a huge varity in the design of many of these early roof trusses, with a lot of it being regional.

For instance parts of North East England up to the 11th century were building roofs that had more in common with dwelling in the counties around the Baltic sea rather than other parts of England

an upper cruck

In the middle ages there was a great cross fertilisation of ideas and methods as builders craftsmen and moved around Europe.

a base cruck

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Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
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