 The barracks consists of two levels , with rifle firing holes on all sides . Iron shutters closed on the inside and were locked with wooden beams . In 1885 the verandah facing the manning parade was enclosed with wooden shutters to keep the weather out . These shutters were removed during 20th @-@ century restoration work and the verandah returned to original condition . The roof was at first flat timber overlaid by 12 inches ( 30 cm ) of lime concrete . This first roof leaked and an iron roof was added in 1885 . The first floor of the barracks contains the officer 's rooms and troop 's barracks room . Its eastern ( outer ) wall is not flat , incorporating a design feature known as " hornwork " , which opens the field of fire from the rifle holes . Some of the firing holes were bricked in during the 1930s ; this has been only partly rectified during restoration . 
 The barracks <a href='uninflect' title='1'><mark>consists</mark></a> of two levels , with rifle firing holes on all sides . Iron shutters closed on the inside and <a href='uninflect' title='2'><mark>were</mark></a> locked with wooden beams . In 1885 the verandah facing the manning parade was enclosed with wooden shutters to keep the weather out . These shutters <a href='uninflect' title='3'><mark>were</mark></a> removed during 20th @-@ century restoration work and the verandah returned to original condition . The roof was at first flat timber overlaid by 12 inches ( 30 cm ) of lime concrete . This first roof leaked and an iron roof was added in 1885 . The first floor of the barracks <a href='uninflect' title='4'><mark>contains</mark></a> the officer <a href='null_genetive' title='5'><mark>'s</mark></a>rooms and troop <a href='null_genetive' title='6'><mark>'s</mark></a>barracks room . Its eastern ( outer ) wall <a href='negative_concord' title='7'><mark>is</mark></a> <a href='negative_concord' title='8'><mark>not</mark></a>flat , incorporating a design feature known as " hornwork " , which <a href='uninflect' title='9'><mark>opens</mark></a> the field of fire from the rifle holes . Some of the firing holes <a href='uninflect' title='10'><mark>were</mark></a> bricked in during the 1930s ; this <a href='been_done' title='11'><mark>has</mark></a> been only partly rectified during restoration . 
Da barracks consist of two levels , wit rifle firing holes on all sides . Iron shutters closed on the inside and was locked with wooden beams . In 1885 the verandah facing tdamanning parade was enclosed with wooden shutters to keep the weather outt . These shutters was removed durin 20th @-@ century restoration work and thdaerandah returned to original condition . Thedaof was at first flat timber overlaid by 12 inches ( 30 cm ) of lime concrete . This first roof leaked and an iron roof was added in 1885 . The first floor of the barracks contain the officer  rooms and troop  barracks room . Its eastern ( outer ) wall ain't flat , incorporating a design feature known as " hornwork " , which open the field of fire from the rifle holes . Some of the daing holes was bricked in during the 1930s ; dis done been only partly rectified during restoration .