Block B is a rectangular, two storey timber building located near the northwest end of Block A. The building stands on low concrete stumps and is clad in timber weatherboards.
The Dutch gable roof is clad in corrugated metal sheeting, with louvred vents to the gablets.
 The raked eaves have exposed rafters and are lined with timber VJ, T&G boards.
A verandah, now enclosed, runs along the southwest and northwest sides of the first floor, and an enclosed verandah runs along the northwest side of the ground floor.
Access to the ground floor is via a two single doors - a main entrance in the centre of the northwest wall, and a secondary entrance at the eastern end of the southeast wall.
Access to the first floor is via a main timber staircase to the southwest wall, and a secondary staircase at the northern corner.
Windows are generally timber-framed, two or three-light casements, with fanlights above windows in the southeast wall.
Windows in the northeast walls are fanlights alone, protected by skillion-roofed hoods with decorative brackets and clad in corrugated metal sheeting.
A lean-to shed clad in weatherboards runs along the southwest side of the ground floor.

The ground floor contains two rooms divided by modern folding doors.
The walls and ceiling are lined with modern flat sheeting.
Toilets occupy the enclosed verandah and have recently been renovated.

The first floor contains two classrooms divided by a modern concertina door, with bulkheads and lines in the ceiling lining indicating the location of former partitions.
The former southwest verandah forms part of the open classroom space, and retains its raked ceiling lined with timber VJ, T&G boards.
Walls are lined with flat sheeting.
Two sets of early double timber doors survive, as well as the classroom ceilings of flat sheeting with timber batten cover strips, arranged in a grid pattern.
The northwest verandah contains a series of small rooms and store rooms, divided by partitions from different periods.
It retains it raked ceiling lined with timber VJ, T&G boards.

Non-significant elements of Block B include air-conditioning units, ceiling fans, lights and other services; modern floor linings of carpet and linoleum; the toilets fitout; and modern doors, glazing, partitions and cabinetry.
Block B is a rectangular, two storey timber building located near the northwest end of Block A. The building stands on low concrete stumps and is clad in timber weatherboards. The Dutch gable roof is clad in corrugated metal sheeting, with louvred vents to the gablets. The raked eaves have exposed rafters and are lined with timber VJ, T&G boards. A verandah, now enclosed, runs along the southwest and northwest sides of the first floor, and an enclosed verandah runs along the northwest side of the ground floor. Access to the ground floor is via a two single doors - a main entrance in the centre of the northwest wall, and a secondary entrance at the eastern end of the southeast wall. Access to the first floor is via a main timber staircase to the southwest wall, and a secondary staircase at the northern corner. Windows are generally timber-framed, two or three-light casements, with fanlights above windows in the southeast wall. Windows in the northeast walls are fanlights alone, protected by skillion-roofed hoods with decorative brackets and clad in corrugated metal sheeting. A lean-to shed clad in weatherboards runs along the southwest side of the ground floor.
The ground floor contains two rooms divided by modern folding doors. The walls and ceiling are lined with modern flat sheeting. Toilets occupy the enclosed verandah and have recently been renovated.
The first floor contains two classrooms divided by a modern concertina door, with bulkheads and lines in the ceiling lining indicating the location of former partitions. The former southwest verandah forms part of the open classroom space, and retains its raked ceiling lined with timber VJ, T&G boards. Walls are lined with flat sheeting. Two sets of early double timber doors survive, as well as the classroom ceilings of flat sheeting with timber batten cover strips, arranged in a grid pattern. The northwest verandah contains a series of small rooms and store rooms, divided by partitions from different periods. It retains it raked ceiling lined with timber VJ, T&G boards.
Non-significant elements of Block B include air-conditioning units, ceiling fans, lights and other services; modern floor linings of carpet and linoleum; the toilets fitout; and modern doors, glazing, partitions and cabinetry.
Milton State School