Size Chart

Chart is based on 20lb. bond paper plus two 10pt. covers.
Sheets of Paper - Number of pages	Coil used in millimeters	Thickness in inches
25 sheets – 50 pages	5 mm	1/8
35 sheets – 70 pages	6 mm	5/32
47 sheets – 94 pages	7 mm	3/16
60 sheets – 120 pages	8 mm	1/4
70 sheets – 140 pages	9 mm	9/32
80 sheets – 160 pages	10 mm	5/16
90 sheets – 180 pages	11 mm	3/8
100 sheets – 200 pages	12 mm	13/32
110 sheets – 220 pages	13 mm	7/16
120 sheets – 240 pages	14 mm	15/32
130 sheets – 260pages	15 mm	1/2
140 sheets – 280 pages	16 mm	9/16
150 sheets – 300 pages	17 mm	19/32
160 sheets – 320 pages	18 mm	5/8
170 sheets – 340 pages	19 mm	11/16
180 sheets – 360 pages	20 mm	3/4
200 sheets – 400 pages	22 mm	25/32
210 sheets – 420 pages	23 mm	13/16
230 sheets – 460 pages	25 mm	7/8
260 sheets – 520 pages	28 mm	1
280 sheets – 560 pages	30 mm	1 1/16
290 sheets – 580 pages	32 mm	1 1/8
340 sheets – 680 pages	38 mm	1 5/16
400 sheets – 800 pages	45 mm	1 9/16
460 sheets – 920 pages	50 mm	1 7/8

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