Salsbury Industries 3813D11ZFP, 3811S1BZF User Manual

SALSBURY INDUSTRIES

1010 East 62nd 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 [e-mail]

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 © 2017 Salsbury Industries. All rights reserved. (02/10/17) Page 1 of 3

4C Surface Mounted Horizontal Mailboxes–3800 Series

Installation Instructions

With its high quality design and construction, Salsbury’s 3800 series surface mounted 4C horizontal mailboxes will provide years of maintenance
free service. Please read this entire document before beginning installation.

WARNING: Installation of the surface mounted 4C horizontal mailbox unit must be to a surface of sufficient load bearing
strength. Attachment of the enclosure to the surface must be with fasteners that can adequately support the weight of the
enclosure and mailbox unit. Installing to a deficient load bearing mounting surface and/or use of inadequate fasteners could
cause the surface mounted 4C horizontal mailbox unit to fall from the surface possibly resulting in serious injury. See below
for further information.

Installation Planning

1. Determine the horizontal location of each of the 3800 series

mailbox units with its wall mount enclosure.

2. Consider the combined weights in the table below when

designing the wall or selecting the appropriate fasteners and
anchors to be used.

3. If attaching to studs in a custom built wall, determine the

optimum location of the wall studs to which to fasten the
enclosures. Frame the wall with wood studs. Build a robust
wall.

4. If attaching to studs in an existing wall, determine the stud

locations, and position enclosures to maximize the number of
studs to which the enclosures will be attached.

5. If not attaching to studs, choose an appropriate high strength

anchor, especially if attaching directly to drywall. When
attaching to drywall, place the anchor and fastener as close as
possible to the studs to which the drywall is attached.

Weight of Mailbox Unit and Wall Enclosure

Mailbox Model

Total Weight - Lbs.

Mailbox Model

Total Weight - Lbs.

3816D

300

3816S

205

3815D

295

3815S

200

3814D

285

3814S

195

3813D

280

3813S

190

3812D

270

3812S

180

3811D

260

3811S

180

3810D

245

3810S

195

3809D

235

3809S

170

3808D

220

3808S

160

3807D

205

3807S

150

3806D

190

3806S

140

3805D

175

3805S

130

The weights above include the mailbox unit, the wall mount enclosure and 75 lbs. of mail.

USPS Height Regulations

1. The USPS arrow lock in the Carrier Access Door shall be

located between 36” and 48” above the finished floor (AFF).

2. No tenant mailbox lock shall be located more than 67” AFF.

3. No tenant mailbox compartment (interior bottom shelf surface)

shall be positioned less than 28” AFF.

4. No parcel locker compartment (interior bottom shelf) shall be

positioned less than 15” AFF.

5. At least one tenant mailbox compartment shall be positioned

less than 48” AFF.

Types of Fasteners Used

Type A, Fig. 1 - If fastening into wood studs, use a #12x2” wood
screw (not supplied). If fastening into metal studs or directly into dry
wall, choose and use an appropriate wall anchor with screw.

Type B, Fig. 2 – To fasten the mailbox unit into the enclosure, use
the #8x3/4” pan head self-tapping screws (supplied).

Marking Distance from Floor and Stud Location

Mark the wall with a horizontal line representing the distance from
the floor to the bottom surface of the enclosure. The distance from
the bottom surface of the enclosure to the surface of the lowest
compartment shelf or the parcel locker shelf is 2-7/16”. The
distance from the bottom surface of the enclosure to the floor may
be derived from the USPS Height Regulations above. Pay
particular attention to the height limitations for the USPS Arrow Lock
in the Carrier Access Door.

It is recommended that the enclosure be tied to studs due to its
significant total weight including the mailbox unit. If attaching to
studs, mark the wall with two (2) vertical lines representing two (2)
wall studs to which the enclosure will be fastened.

If not attaching to studs, install appropriately strong anchors and
fasteners to engage the outermost slots in the rows of slots in the
rear panel.

Fig. 1

Type A

Fig. 2

Type B

SALSBURY INDUSTRIES

1010 East 62nd 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 [e-mail]

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 © 2017 Salsbury Industries. All rights reserved. (02/10/17) Page 2 of 3

4C Surface Mounted Horizontal Mailboxes–3800 Series

Installation Instructions

Installing the Wall Fasteners

Install Type A wood screws, Fig. 3 (or anchors and fasteners) into
all of the outermost slots (or slots engaging wood studs) in the rear
panel. Install two (2) of the Type A wood screws, not provided, (or
anchors and fasteners, not provided) in the rear flange of the top
panel and in the rear flange of the bottom panel so that the four (4)
screws go through the elongated slots in the rear flanges and into
the wood studs. See the “Screw Locations”, Fig. 4.

Screw Locations

Fig. 4 identifies the locations of the Type A fasteners that are used
to attach the enclosure to the wall studs.

Installing the Mailbox Unit

Lifting and installing the mailbox unit into the enclosure is a two (2)
person operation. Open appropriate compartment doors to provide
handholds. Lift the mailbox unit and carefully slide it into the

enclosure until the front peripheral flange is flush against the front
flanges of the enclosure. See Fig. 5.

Fastening the Mailbox Unit to the Enclosure

Open the master door(s) of the mailbox unit until the hold-open rods
at the top inside corners of the doors engage. Install Type B self­tapping machine screws (provided) in the flanges all around the four
(4) sides of the mailbox unit just behind the master door(s). See the
following illustrations to locate the flanges. Pilot holes are provided
for the screws in the flanges. The double column mailbox unit
shown uses four (4) screws each along the top and bottom flanges.
The single column mailbox unit (not shown) uses only two (2)
screws each along the top and bottom. See Fig. 6.

Type A

Type A

TOP

BOTTOM

Fig. 3

Fig. 4

Fig. 5

Type A

Type B

Type B

Type B

TOP

BOTTOM

Fig. 6