Hi Tim,

The cables - yes - now there's a glimpse of the obvious !

The building is as shown below :-



and has a crown post roof with common rafters and hence no side purlins. The location of the blown tieing joint is as indicated in the sketch. This is a tall slim town building with an end jetty and a very large open 2 bay upper room at the front.

Cogged tieing joints are employed in English timber-framed buildings but as yet there is no real significant statistical evidence of where and when these can be found.

Ken Hume