Hollow

Penggunaan hollow biasanya dalam komponen rangka arsitektural (ceiling, partisi, gypsum, rangka dan support ornamen ornamen non structural)

SIZE	Wall Thickness	Calculated Weight
mm	mm	Kgs/m
12 1/2 x 12 1/2	0.9	0.332
15 x 15	0.9	0.403
20 x 20	0.9	0.544
25 x 25	1	0.759
30 x 30	1	0.915
40 x 40	1.2	1.468
10 x 20	0.9	0.403
12 1/2 x 27 1/2	0.9	0.544
15 x 30	0.9	0.615
20 x 40	1	0.915
25 x 50	1.4	1.597
20 x 60	1.4	1.926
50 x 50	1.6	2.38
	2.3	3.34
	3.2	4.5
60 x 60	1.6	2.88
	2.3	4.06
	3.2	5.5
75 x 75	1.6	3.64
	2.3	5.14
	3.2	7.01