Letter-size drawer or box

1.5

Legal-size drawer or box

2.0

Letter-size, 36" shelf

2.0

Legal-size, 36" shelf

2.5

3" x 5" card, ten 12" rows

1.0

3" x 5" card, five 24" rows

1.0

4" x 6" card, six 12" rows

1.0

4" x 6" card, three 24" rows

1.0

5" x 6" card, four 12" rows

1.0

Tab card, five 14" boxes

1.0

Tab card, three 24" boxes

1.0

Weights of various types of material:

Letter-size files

30 lbs. per cu. ft.

Legal-size files

35 lbs. per cu. ft.

Books

20 lbs. per cu. ft.

X-rays

96 lbs. per cu. ft.

Office supplies

40 lbs. per cu. ft.

3" x 5" cards

50 lbs. per cu. ft.

4" x 6" cards

50 lbs. per cu. ft.

5" x 8" cards

50 lbs. per cu. ft.

Tab cards

50 lbs. per cu. ft.

Computer reel

3-5 lbs. per cu. ft.

Disk pack

7-8 lbs. per cu. ft.

Floor space required for file cabinets:

Legal-size — 8 sq. ft.

Letter-size — 6 sq. ft.

(Includes working space and aisles)

Volume per cubic foot:

Number of tabulating cards per cu. ft.

10,000

Number of 3" x 5" cards per cu. ft.

12,000

Number of 4" x 6" cards per cu. ft.

6,000

Number of 5" x 8" cards per cu. ft.

4,800