Beams on angles supplied to site at standard lengths to be cut to suit by others.
Plan shown here using standard face size 440 x 215 infill block.
(with cuts when required as shown)

Beams supported on
inner leaf of cavity wall.
Closure block bedded.
Two beams grouted
together supporting
block partition.
Beam adjacent to
support wall.
Grouted solid.
Coursing Slip
Block out from beam
into adjacent support
wall bedded on
coursing slip.
Closure Block on
internal support.

Shared bearing
oninternal support
wall less than
200mm thick.