Beam at the top of a one-storey framed wall, eg in a wall constructed in separate storeys or in an internal partition.
see also Jetty plate
A*) Applied jetty B*) End jetty C) Storeyed construction
c*) Storey post e) Passing braces f) clasped wall plate held by g) Doubled tiebeam h) Short knee principal i) Head plate j*) Jetty spur