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Salsbury Industries 3700 Series 4C Horizontal Mailboxes REAR LOADING User Manual

Rear loading installation instructions, Salsbury industries

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SALSBURY INDUSTRIES

1010 East 62

nd

Street, Los Angeles, CA 90001-1598

Ph: 1-800-624-

5269 Int’l Ph: 323-846-6700

Fx: 1-800-624-

5299 Int’l Fx:

323-846-6800

www.mailboxes.com [email protected]

Installation instructions are provided as general guidelines. It is advised that a professional installer be consulted. Salsbury Industries assumes no product assembly or installation liability.

Copyright © 2014 Salsbury Industries. All rights reserved. (P/N 370139, Rev. 18, 2/27/14) Page 1 of 4

4C Horizontal Mailboxes

– 3700 Series

REAR LOADING Installation Instructions

U.S.P.S. APPROVED

With its high-security design and quality construction, Salsbury’s 3700 series USPS approved 4C horizontal mailboxes will provide years of

maintenance free service. These units meet all the requirements of USPS-STD-4C, the new high-security standard developed by the United
States Postal Service.

Illustration 1 - Typical Installation



Preparatory Steps

1. Have mailboxes and instructions on hand before starting wall

construction.
2. Unpack and review contents of shipping cartons.
3.
Gather tenant and parcel locker keys and store in a secure place.

4. Read installation instructions document thoroughly.
5. Determine rough opening size(s).
6. Determine rough opening location above finished floor.

7. Determine framing configuration and location.
8. Procure materials for wall construction.



Rough Opening Dimensions

Each unit requires a separate opening. Each pair of units will have a
2x4 stud and (2) 2x2 studs separating them. The trim frames cannot

be butted together. There will be a space between edges of trim
frames of approximately 3/4”

Calculation Of Space Required for Multiple Units

For overall width of the installation, add all of the stud spacings and
subtract ¾”. For overall height of units, see chart in next column.


Dimensions – REAR LOADING

WIDTHS

1 COLUMN

2 COLUMN

Overall

16-3/8”

31-1/8”

Rough Opening

15-5/8”

30-3/8”

Stud Spacing

17-1/8”

31-7/8”


HEIGHTS

OVERALL

ROUGH OPENING

Maximum Height

56-3/4”

56”

15 Doors High

55”

54-1/4”

14 Doors High

51-1/2”

50-3/4”

13 Doors High

48”

47-1/4”

12 Doors High

44-1/2”

43-3/4”

11 Doors High

41”

40-1/4”

10 Doors High

37-1/2”

36-3/4”

9 Doors High

34”

33-1/4”

8 Doors High

30-1/2”

29-3/4”

7 Doors High

27”

26-1/4”

6 Doors High

23-1/2”

22-3/4”

5 Doors High

20”

19-1/4”

4 Doors High

16-1/2”

15-3/4”

3 Doors High

13”

12-1/4”



Wall Construction

Particular attention must be paid to wall framing to provide a strong
and secure attachment of the mailbox units. Stud spacing must be
accurate to ensure that there is minimum space between the studs
and the mailbox frame and minimum mailbox frame distortion when
the fasteners are tightened between the frame and the studs. Studs
must be installed plumb and square to further ensure proper fit of the

mailboxes.