The configuration of the joint used to join the arcade plates is quite a rare example of a scarf joint. It is described as a face-halved and bladed scarf with blades half-housed at alternate face and soffit
. A similar joint construction has been identified in timber-framed buildings in Widdington and Dunmow in West Essex not that far from Thorley, in East Hertfordshire.
Cecil Hewitt (English Historic Carpentry, 1980) illustrates a variation of a housed bladed joint in farm buildings at Abbess Roding and Helions Bumpstead also in Essex.
Arcade Scarf Joint between posts 8 & 9>
Details of the Scarf Joints in the Arcade Plates
A face-halved and bladed scarf with blades half-housed at alternate face & soffit.
As viewed from the floor
As viewed from above
As viewed from below