Exterior wall for steel framed house

[scottishjohn]

the way we built our big workshop 30x24m  30years ago was to make footings just for the pillars ,then drop in frame level it up   and fill around rsj,s with concrete. the main workshop floor was then done seprate - 10"  thick  on 2ft of well packed hardcore.still here and no subsidance 30 years later . strip founds between posts for block work .but if hanging panels on frame to gorund level --you won,t need much as a strip between posts

But modern monews i,ve seen  are done as raft with bolts to fasten frame now -could be change in regs ?

i remember the steel constructors trying change our minds about hot dip galv on frames --glad we did it -never had to paint it and still looks like new