13.08.13 Mortise & Tenon Joint Inspection

The stud partition and ceilings have been removed in preparation for the installation of the stair.

Closer inspection of the beam showed that the sides and top perimeter of the beam are butted up to the column and do not have recessed shoulders as might be expected if this were a loose mortice & tenon joint. The slight gap between these beam perimeters and column suggests that these are in fact the edges to the shoulder of the tenon and that the joint is in already in place.

In addition to this, the recess to underside of the beam appeared to be unevenly notched, suggesting a portion the timber had been removed whilst the beam was in situ.