I want to buy some "Multi Truss Hangers", for hanging 150mm deep wooden
joists from 200mm deep wooden beams. They look like these:
http://www.screwfix.com/prods/95710/...5mm-Pack-of-10
http://www.tradefixdirect.com/produc...oducts_id=5385

I haven't found an on-line supplier yet that actually specifies the
dimensions of the hanger.

I want the tops of the joists to be level with the tops of the beams, so I
want the want the hanger's "slot" to be no more than 150mm deep.

Can anyone point me to somewhere on-line I can buy some?