My welder who is fabricating a set of steel stringers for me has asked me how many fixing points I would like per tread.
I will be using 2 140x45 per tread. From any experience out there is 1 bolt per 140x45 sufficent for each side or should I be using 2 per piece.
The treads will be bolted to 255mm angle which is welded to the stringer so there will be a slight over hang on each end of about 10-15mm.
From my understanding any overhang between treads should not be included in the overall run is this correct?
I have decided to fabricate a set of stringers out of ply as template prior to handing over all the measurments . I have learnt my lesson once before when using steel.