On Sun, 23 Aug 2009 21:07:02 +0100 Tim Lamb wrote :
I was extending an agricultural barn recently and discovered that
the erectors had *sledged* short lengths of 4"x3" into the web to
secure the external cladding. It had to be chiselled out.

If they started off with a properly dry piece of wood, it would
naturally swell in a semi-exposed location.

--
Tony Bryer, 'Software to build on' from Greentram
www.superbeam.co.uk www.superbeam.com www.greentram.com