anyone any idea of the size of box section i would need to make a spit for a car (mk3 fiesta), i was thinking either 40x40mm or 50x50mm and 4mm thick? would that be ok or too weak?
50 x25 x3mm for A frame, made numerous over years, used scafolding tube for pivots & 40x40 x4mm for mounting brackets for Sunbeam, Escorts, Opel, & TRs, MG,