I'm knocking out my rear wall for my extension I've been told to use 2 x 203x133UB30s steels with 152x98UB16 C section welded to one and bolted to the other this bit fine what they want and im not shore of is this bit
2 203 x133UB 30 with 152x89 DIAPHTAMS AT 900MM CENTRES
THE BEAMS ARE 4700 LONG is the 152x89UB16 also 4700 long or do I use 5 x 395 long 152x89UB 16 welded at 900mm centres? Which would give a gap of 681mm between them
please can someone help
2 203 x133UB 30 with 152x89 DIAPHTAMS AT 900MM CENTRES
THE BEAMS ARE 4700 LONG is the 152x89UB16 also 4700 long or do I use 5 x 395 long 152x89UB 16 welded at 900mm centres? Which would give a gap of 681mm between them
please can someone help
