dgadee
Well-known member
I am making an extension replacement for the boarding ladder. I have two 1" stainless vertical tube rails which I have had bent to shape. The steps are to be iroko (30mm thick) with the rails going through these (and then the steps bolted to the stainless rails).
My query is what fit should I have between the steps and the rails? I don't know whether iroko swells when wet or whether an 'engineering fit' is ok. My options (ie my drills to hand) are 1" hole and fitted with a knock from a hammer, 26mm hole or 1 1/8" hole (which I think is too loose).
Any idea from boat builders out there?
My query is what fit should I have between the steps and the rails? I don't know whether iroko swells when wet or whether an 'engineering fit' is ok. My options (ie my drills to hand) are 1" hole and fitted with a knock from a hammer, 26mm hole or 1 1/8" hole (which I think is too loose).
Any idea from boat builders out there?