i have to bolt together 175x50 joists using 12mm bolts can any body tell me the spacing and stagger measurments, also would 30mm clout nails be ok for jiffy hangers.
hi thank you all for the replys so far.
the rsj i wish to box in is supporting a chimney breast in the loft,the rsj is 50mm below the ceiling in the bedroom the only way i can box this in is against the wall and upto the ceiling, i have read elsewere there is a sequence ie. box rsj first then...