FS Industries ENGINEERED STEEL PRODUCTS
Priced Full Line Products Catalog
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4C Horizontal Mailbox - Surface Mounted

Made of heavy duty aluminum and stainless steel hard-
ware, The 3800 series surface mounted 4C horizontal
mailboxes are accessed from the front through one or
two (2) easy opening master door panels. Surface
mounted 4C horizontal mailboxes include a U.S.P.S.
approved 4C horizontal mailbox and matching surface
mounted enclosure and are available in configurations
that are one door wide (single column) and two (2)
doors wide (double column). The durable and corrosion
resistant units feature a powder coated finish available in
four (4) contemporary colors and are designed for indoor
and outdoor use. Surface mounted 4C horizontal mail-
boxes are available with standard mailbox doors (MB1)
that are 12-3/4'' W x 3-1/4'' H. All pre-numbered
mailbox doors include a heavy duty cam lock with a
dust/rain shield and three (3) keys. Each unit includes
a compartment for outgoing mail collection and is labeled
“Outgoing Mail”. The outgoing mail compartment
includes a weather protection flap and an
11-3/4” W x 3/4” H mail slot.
Max. Ht. Units - 57-3/4"H
Note: The 3800 series surface mounted 4C
horizontal mailboxes include a U.S.P.S.
approved 4C horizontal mailbox unit and a
matching enclosure. 4C mailboxes are
required for new construction and major
renovations.
6 Door High Units* - 24-1/2"H
Fully integrated and stand-alone parcel lockers are available in heights ranging
from the equivalent of three (3) standard MB1 mailbox doors (PL3 - 10-1/4"
high) to six (6) standard MB1 mailbox doors (PL6 - 20-3/4" high). The maxi-
mum height units (3816D-15) have three (3) fully integrated parcel lockers
(2 PL4.5 and 1PL5) and fifteen (15) standard MB1 mailbox doors and meet
the U.S.P.S. 4C requirement of one parcel locker for every five (5) tenant
compartments. 4C receptacle bins and collection boxes are available in 10
door, 11 door and maximum height units. Surface mounted 4C horizontal
mailboxes provide a convenient means of installing 4C horizontal mailboxes
in locations where walls cannot accommodate a recessed mounted installation.
10 Door High Units*- 38-1/2"H
*All units meet ADA reach requirements when installed with the tenant locks in the top row of mailboxes no
more than 48” above the finished floor and the bottom shelf of the lowest row of mailboxes no less than 28”
above the finished floor.

CLICK here to Access our 4C Mailbox Configurator
Our 4C mailbox configurator will assist in determining the ideal combination of mailboxes and parcel lockers
based on your specific requirements. This robust tool also allows you to customize 4C mailbox units and add
numbering sequences to drawings. Contact our sales depatment for assistance.

• Ideal for Installations with Limited Wall
   Depth
• Easily Mounted to Any Flat Surface
• Fully Integrated Parcel Locker(s)
• For Indoor or Outdoor Use
• Engraved Doors or Placards Available
• ADA Compliant Units Available
See Below for Diagrams and Prices



Order Online, by Phone, or by E-Mail

~ Add items to your online shopping cart ~
Click the Model No. of the item you wish to purchase.

² Specify:
U.S.P.S. access or private access (order #3775 master
commercial lock for private access on FL units and PL's)
PRICING FOR 4C HORIZONTAL MAILBOX ENCLOSURES - SURFACE MOUNTED
MODEL
DESCRIPTION
UNIT SIZE
WEIGHT
(lbs.)
PRICE
MAXIMUM HEIGHT UNITS - 57-3/4" H (including enclosure)
20 MB1 Doors and 2 Parcel Lockers (PL4.5's)
31-3/4"W  x 17"D
225
$2,585
15 MB1 Doors and 3 Parcel Lockers (PL4.5, PL5)
31-3/4"W  x 17"D
215
$2,435
10 MB1 Doors and 4 Parcel Lockers (PL4.5's, PL5's)
31-3/4"W  x 17"D
205
$2,280
6 Parcel Lockers (PL4.5's, PL5's, PL6's)
31-3/4"W  x 17"D
200
$1,920
9 MB1 Doors and 1 Parcel Locker (PL4.5)
17-3/4"W x 17"D
130
$1,525
6 MB1 Doors and 2 Parcel Locker (PL3, PL4.5)
17-3/4"W x 17"D
130
$1,450
3 Parcel Lockers (PL4.5, PL5, PL6)
17-3/4"W x 17"D
125
$1,220
2 Receptacle Bins
17-3/4"W x 17"D
115
$1,375
1 Collection Box
17-3/4"W x 17"D
125
$1,500
11 DOOR HIGH UNITS - 42" H (includes enclosure)
20 MB1 Doors no Parcel Lockers
31-3/4"W  x 17"D
185
$2,135
15 MB1 Doors and 1 Parcel Locker (PL5)
31-3/4"W  x 17"D
175
$1,980
10 MB1 Doors and 2 Parcel Lockers (PL5's)
31-3/4"W  x 17"D
175
$1,835
4 Parcel Lockers (PL5's, PL6's)
31-3/4"W  x 17"D
170
$1,485
9 MB1 Doors - no Parcel lockers
17-3/4"W x 17"D
105
$1,275
4 MB1 Doors and 1 Parcel locker (PL5)
17-3/4"W x 17"D
105
$1,125
2 Parcel Lockers (PL5, PL6)
17-3/4"W x 17"D
95
$970
1 Receptacle Bin
17-3/4"W x 17"D
80
$1,110
1 Collection Box
17-3/4"W x 17"D
90
$1,235
10 DOOR HIGH UNITS - 38-1/2" H (includes enclosure)
10 MB1 Doors and 2 Parcel Lockers (PL4, PL4.5)
31-3/4"W x 17"D
165
$1,750
9 MB1 Doors and 2 Parcel Lockers (PL4.5, PL5)
31-3/4"W x 17"D
165
$1,705
6 MB1 Doors and 2 Parcel Lockers (PL6's)
31-3/4"W x 17"D
160
$1,590
4 Parcel Lockers (PL5's)
31-3/4"W x 17"D
155
$1,395
4 MB1 Doors and 1 Parcel Locker (PL4.5)
17-3/4"W x 17"D
100
$1,075
3 MB1 Doors and 1 Parcel Locker (PL5)
17-3/4"W x 17"D
95
$1,030
2 Parcel Lockers (PL5's)
17-3/4"W x 17"D
90
$910
1 Receptacle Bin
17-3/4"W x 17"D
70
$1,045
1 Collection Box
17-3/4"W x 17"D
80
$1,170
6 DOOR HIGH UNITS - 24-1/2" H (includes enclosure)
10 MB1 Doors - no Parcel Lockers
31-3/4"W x 17"D
115
$1,375
9 MB1 Doors - no Parcel Lockers
31-3/4"W x 17"D
115
$1,305
5 MB1 Doors and 1 Parcel Locker (PL5)
31-3/4"W x 17"D
110
$1,220
2 Parcel Lockers (PL6's)
31-3/4"W x 17"D
105
$1,030
4 MB1 Doors - no Parcel Lockers
17-3/4"W x 17"D
65
$875
3 MB1 Doors - no Parcel Lockers
17-3/4"W x 17"D
65
$800
1 Parcel Locker (PL6)
17-3/4"W x 17"D
60
$715

4C HORIZONTAL MAILBOX SPECIFICATIONS & OPTIONS
FINISHES
The durable and corrosion resistant 4C units feature a
durable powder coated finish available in aluminum,
bronze, sandstone or black. Custom finishes (#3766 –
add 25% upcharge) are available as an option upon
request – minimum order of (100) doors.
DOOR IDENTIFICATION
Each standard 4C horizontal mailbox door has a 1''
high number. The outgoing mail compartment is labeled
“Outgoing Mail” and the parcel locker(s) are labeled
with a “1P”, “2P”, etc. Custom identification systems are
available as an option upon request.
CUSTOM ENGRAVED PLACARDS (#3767)
1-3/4" W x 1-1/2" H custom
engraved self-adhesive placards
are available as an option upon
request.
custom engraved placards
CUSTOM ENGRAVED DOORS
• Custom engraved door -
   regular - #3768
engraved doors
custom engraved doors
• Custom engraved door -
   black filled - #3774
OUTGOING MAIL COMPARTMENTS LOCKS
One additional compartment in each unit is labeled
"Outgoing Mail" and includes a weather protection
flap and a 10-3/4"W x 3/4"H mail slot.
Each 4C mailbox door
includes a heavy duty five
(5) pin cylinder cam lock
with a dust/rain shield and
three (3) keys. (2,000
different key changes).
locks
OPTIONS (for installations not serviced by the U.S.P.S.
• Mail slots - (#3769) Standard slot size:
   10"W x 3/4"H
• Additional keys per lock
   when ordering (#3798)
#3790
Custom slot sizes are available upon request.
• Key blanks - box of (50) (#3799)
• Plexiglass window 1-1/8"W x 7/8"H (#3771)
• Custom lock installation - cylinders provided by
   owner (for installations not serviced by the U.S.P.S.)
   (100) door minimum (#3793 - $5.00 additional per door)
COMBINATION LOCK #3786
• Outgoing mail slot plug kit (#3770)
Three (3) digit single dial combination
lock with spring latch and automatic
throw-off (for installations not serviced
by the U.S.P.S). Combination numbers
can be changed by owner.
MASTER COMMERCIAL LOCK
Factory installed if for private access -
for front loading mailboxes and parcel
lockers - with (2) keys
TENANT PARCEL LOCKER LOCK
For parcel locker door -
with (3) keys
SUBMIT REQUIRED LAYOUT AND
OPTIONS FOR A PRICE QUOTATION

Order Online, by Phone, or by E-Mail

~ Add items to your online shopping cart ~
Click the Model No. of the item you wish to purchase.

Model No.
Description
Unit Size
Weight
Prices
Spare Parts / Options
Door - MB1 replacement door and lock with (3) keys
3-1/4"H x 12-3/4" W
1 lb.
$70
Door - MB2 replacement door and lock with (3) keys
6-3/4"H x 12-3/4" W
2 lbs.
$80
Door - MB3 replacement door and lock with (3) keys
10-1/4"H x 12-3/4" W
2 lbs.
$90
Door - PL3 replacement door and lock with (2) keys
10-1/4"H x 12-3/4" W
2 lbs.
$125
Door - MB4 replacement door and lock with (3) keys
13-3/4"H x 12-3/4" W
3 lbs.
$100
Door - PL4 replacement door and lock with (2) keys
13-3/4"H x 12-3/4" W
3 lbs.
$130
Door - PL4.5 replacement door and lock with (2) keys
15-1/2"H x 12-3/4" W
4 lbs.
$135
Replacement PL5 door and tenant lock
~
~
$140
Replacement PL6 door and tenant lock
~
~
$145
3766
Custom finishes (Add 25% to price) (minimum order of
100 doors) - Specify Color
~
~
Add 25%
3767
Custom engraved placard - for 3700 series mailbox doors
and parcel lockers
1-1/2"H x 1-3/4"W
~
$3
3768
Custom engraved door - regular - for 3700 series mailbox doors
and parcel lockers
~
~
$5
Mails slots - Standard slot size
10"W x 3/4"H
~
$5
Outgoing mail splot plug kit
~
~
$35
Plexiglass window
1-1/8"W x 7/8"H
~
$3
3774
Custom engraved door - black filled - for 3700 series mailbox doors and parcel lockers
~
~
$5
Master commercial lock-for front loading mailbox units and parcel lockers-if for private access
~
~
$30
Tenant Parcel Locker lock - with (3) keys
~
~
$40
Combination lock
~
~
$30
Set of (5) #3790 Locks - standard replacement for 3700 series doors
-with three (3) keys
~
~
$100
Additional keys per lock when ordering
~
~
$3
Key blanks - for standard 3700 series locks - box of (50)
~
~
$50
Horizontal Mailbox Enclosures Surface Mounted,Standard Horizontal Mailboxes, Parcel Lockers, Aluminum Mailboxes, Indoor/
Outdoor Application, USPS Approved, Front or Rear Loading, Outgoing Mail Compartment, Heavy Duty Cam Locks, and ADA
Compliant from your source for material handling equipment.
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