Hi, Tony....yes there is...but now that I know what I'm doing I can get the chains cut to length when I buy them....cunning eh?
I have just noticed though that one of the beams that runs across the top to make the sort of roof has dropped by about half an inch from the support on the house wall.....don't know it it's all my hammering etc....
It doesn't feel loose when I push it but it's pretty crucial to the whole thing so I think rather than try pushing it back too much I'll just bracket it where it is....and hope for the best....
If not...the builder will have to return.....☻