Square Foot Area Chart

Inches 18 24 30 36 42 54
12 1 � 2 2 � 3 3 � 4 �
13 2 2 � 3 3 � 4 5
14 2 2 � 3 � 3 � 4 � 5 �
15 2 2 � 3 � 4 4 � 6
16 2 3 3 4 5 6
17 2 � 3 4 4 � 5 6 �
18 2 � 3 4 4 � 5 � 7
19 2 � 3 � 4 5 6 7 �
20 2 � 3 � 4 � 5 6 7 �
21 3 3 � 4 � 5 � 6 � 8
22 3 4 5 5 � 6 � 8 �
23 3 4 5 6 7 9
24 3 4 5 6 7 9
25 3 � 4 � 5 � 6 � 7 � 9 �
26 3 � 4 � 5 � 6 � 8 10
27 3 � 4 � 6 7 8 10 �
28 3 � 5 6 7 8 � 10 �
29 4 5 6 � 7 � 8 � 11
30 4 5 6 � 7 � 9 11 �
31 4 5 � 6 � 8 9 � 12
32 4 5 � 7 8 9 � 12
33 4 � 5 � 7 8 � 10 12 �
34 4 � 6 7 � 8 � 10 13
35 4 � 6 7 � 9 10 � 13 �
36 4 � 6 7 � 9 10 � 13 �
37 5 6 � 8 9 � 11 14
38 5 6 � 8 9 � 11 � 14 �
39 5 6 � 8 � 10 11 � 15
40 5 7 8 � 10 12 15
41 5 � 7 9 10 � 12 15 �
42 5 � 7 9 10 � 12 � 16
43 5 � 7 � 9 11 13 16 �
44 5 � 7 � 9 � 11 13 16 �
45 6 7 � 9 � 11 � 13 � 17
46 6 8 10 11 � 13 � 17 �
47 6 8 10 12 14 18
48 6 8 10 12 14 18
49 6 � 8 � 10 � 12 � 14 � 18 �
50 6 � 8 � 10 � 12 � 15 19
51 6 � 8 � 11 13 15 19 �
52 6 � 9 11 13 15 � 19 �
53 7 9 11 � 13 � 15 � 20
54 7 9 11 � 13 � 16 20 �
55 7 9 � 11 � 14 16 � 21
56 7 9 � 12 14 16 � 21
57 7 � 9 � 12 14 � 17 21 �
58 7 � 10 12 � 14 � 17 22
59 7 � 10 12 � 15 17 � 22 �
60 7 � 10 12 � 15 17 � 22 �
61 8 10 � 13 15 � 18 23
62 8 10 � 13 15 � 18 � 23 �
63 8 10 � 13 � 16 18 � 24
64 8 11 13 � 16 19 24
65 8 � 11 14 16 � 19 � 24 �
66 8 � 11 14 16 � 19 � 25
67 8 � 11 � 14 17 20 25
68 8 � 11 � 14 � 17 20 25 �
69 9 11 � 14 � 17 � 20 � 26
70 9 12 15 17 � 20 � 26 �
71 9 12 15 18 21 27
72 9 12 15 18 21 27

Select the standard paper width to accommodate tracing.  Follow down this chart to tracing length and read at left.  For example: Tracing is 27″ x 45″, the standard width is 30″ there are 9 � square feet in the drawing.

NOTE:  All drawings will be measured from the outer edges of originals, not from the trimmed sizes.  The standard area chart will be used.  Drawings 12″ x 12″ and under will be measured 1 square foot and will be charged each.