R.s.j. Girder
 

four metre long R.S.J.iron girder, ideal for double garage, house extension,or bi-fold doors, it has a face plate welded to it for brickwork, already rust proofed ready for use, 10inch x 10inch in size, i ordered this for bi-fold doors not realising their was already a R.S.J already in place, you live and learn.

Ideal as a crawl beam. :}