Thanks for clarifying and SandEstructures,
Since you are using for levelling then re buckling, the length is unknown , so a low pour slab could result in an unstable stand off, whereas an extra 10mm of grout has no influence . But accept all should be fine if there is good on site practice...
Thanks for replies, so if you do not grout under the base plate then the whole load that column is supporting is taken by the 4 threads ?? Do you provide calcs to ‘support’ your no grout principal ?
Is it acceptable practice to have a steel column resting on nuts which are used to adjust for height and upright then tighten down top nuts. .... then grout in the under gap. While this makes the procedure simple I find it strange that if this is acceptable then the holding down bolts are in...