Block A includes one Boulton & Paul building to the east, and part of another Boulton & Paul building to the west, and retains its original chamferboard-clad northeast corner verandah balustrade, and bulkheads approximately halfway along the verandah indicate the location of the former domestic science laundry.
The verandah is accessed by modern metal-framed stairs, and is enclosed with lattice and metal mesh above the balustrade.
Windows along the verandah wall have been replaced with modern aluminium-framed sliding sashes, with fanlights.
Classrooms have half-glazed, boarded doors.

The first floor contains two classrooms to the east of the covered way, and two offices to the west, which have a hallway containing steps up to the adjacent extension.
The passageway connecting the covered way with the verandah has been relocated to the west, into the remaining section of the second Boulton & Paul building (former manual training), around modern store rooms.
An opening formed in the partition between the classrooms has a modern concertina door.
The classroom walls are flat-sheeted, with rounded cover strips, and the ceilings have been relined lined with plasterboard.

The understorey contains a tuckshop (1965-77), office and store rooms.
The walls are clad in a combination of timber chamferboards, V-jointed (VJ) tongue-and-groove (T&G) boards, timber battens and flat sheeting, and the interiors are lined with flat sheeting, some areas with rounded cover strips.
Block A includes one Boulton & Paul building to the east, and part of another Boulton & Paul building to the west, and retains its original chamferboard-clad northeast corner verandah balustrade, and bulkheads approximately halfway along the verandah indicate the location of the former domestic science laundry. The verandah is accessed by modern metal-framed stairs, and is enclosed with lattice and metal mesh above the balustrade. Windows along the verandah wall have been replaced with modern aluminium-framed sliding sashes, with fanlights. Classrooms have half-glazed, boarded doors.
The first floor contains two classrooms to the east of the covered way, and two offices to the west, which have a hallway containing steps up to the adjacent extension. The passageway connecting the covered way with the verandah has been relocated to the west, into the remaining section of the second Boulton & Paul building (former manual training), around modern store rooms. An opening formed in the partition between the classrooms has a modern concertina door. The classroom walls are flat-sheeted, with rounded cover strips, and the ceilings have been relined lined with plasterboard.
The understorey contains a tuckshop (1965-77), office and store rooms. The walls are clad in a combination of timber chamferboards, V-jointed (VJ) tongue-and-groove (T&G) boards, timber battens and flat sheeting, and the interiors are lined with flat sheeting, some areas with rounded cover strips. 
Dalby State High School