Twenty five millimetres over the edge
A measured figure, not an impression.
In short: A bottom plate recorded overhanging its slab edge by 25 millimetres in Leppington, twice.
What the bottom plate does
It is the timber the wall studs stand on, and it transfers everything above into the slab beneath. Where it sits on that slab is therefore not a detail.
What was recorded
Bottom plate overhang, twenty five millimetres, recorded twice on one Leppington frame inspection.
Why an overhang matters
The plate is bearing on less concrete than the design assumed, and it is doing so nearer the slab edge, which is the part of a slab least able to carry a concentrated load.
Why it is easy to argue about, and easy to settle
Because it is a number. Twenty five millimetres is either acceptable against your engineering and the tolerances or it is not, and neither party has to characterise it.
How it happens
A set out taken from the wrong reference, or a slab poured very slightly small. Both are common and neither is deliberate.
Written by the Owner Inspections team from inspections carried out in Catherine Field. Licensed building practitioners, NSW Fair Trading licence 366177C.
