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4C STANDARD HORIZONTAL MAILBOXES
Front or Rear Loading

MAXIMUM HEIGHT UNITS - 57-1/8" H
Made of heavy duty aluminum and stainless steel
hardware, The 3700 series recessed mounted 4C
horizontal mailboxes and parcel lockers are U.S.P.S.
approved and are available with standard MB1
mailbox doors (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.
Recessed mounted 4C horizontal mailbox units
include factory installed 1'' W x 1/4'' D trim and
are available in configurations that are one door
wide (single column) and two (2) doors wide
(double column). The maximum height units
(3716D-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. 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).
Model #3716D-20
Double Column
Front Loading
Color: Bronze
Model #3716D-15
Double Column
Front Load
Color: Sandstone
Each unit includes a compartment for outgoing mail collection and is labeled “Outgoing Mail”. The outgoing mail
compartment includes a weather protection flap and a 11-3/4'' W x 3/4'' H mail slot. 4C receptacle bins and
collection boxes are available in 10 door, 11 door and maximum height units. Designed for indoor or outdoor
use, recessed mounted 4C horizontal mailboxes feature a durable powder coated finish available in four (4)
contemporary colors.
11 DOOR HIGH UNITS - 41-3/8" H 10 DOOR HIGH UNITS* - 37-7/8" H
Model #3711D-20
Double Column
Front Load
Color: Black
Model #3711D-10
Double Column
Front Load
Color: Aluminum
Model #3710S-04
Single Column
Front Load
Color: Bronze
6 DOOR HIGH UNITS* - 23-7/8" H
Note: The 3700 series 4C standard horizontal mailboxes and
parcel lockers have been U.S.P. S. approved and meet the
specifications of USPS-STD-4C. These units are required
for new construction and major renovations.
*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.
Model #3706D-10
Double Column
Front Load
Color: Sandstone

#3710D-10 recessed mounted 4C horizontal mailboxes in
bronze finish with optional custom engraved placards (#3767) displayed
• USPS-STD-4C Specifications
• Required for new construction
• Front or Rear Loading Units
• Outgoing Mail Compartments
• For Indoor or Outdoor Use
• ADA Compliance
• Fully Integrated or Stand-Alone Parcel
  Lockers
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.

If Front Loading
Units include one or two (2) master door(s) that swing(s) on continuous integral hinges. The two (2) high outgoing
mail compartment includes the U.S.P.S. Master lock access door and cannot be used for mail distribution.
The rear of the unit incorporates a solid rear cover.
Note: 3700 series 4C standard horizontal mailboxes and parcel lockers have been U.S.P. S. approved and meet the specifications
of USPS-STD-4C. These units are required for new construction and major renovations.

If Rear Loading
The front of the two (2) high outgoing mail compartment is
comprised of two (2) fixed panels (no access door). The
rear of the unit incorporates one or two (2) access door(s)
with heavy duty latches and continuous hinges. Units
available without rear access doors upon request.



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.

When Ordering:
² Specify - front loading (FL) or rear loading (RL) -
(add 25% upcharge for rear loading (RL) units)
mailbox colors
³ Specify - U.S.P.S. access or private access (order
#3775 master commercial lock for private access on
FL units and PL's)

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.

PRICES
Model No.
Description
Unit Size
Weight
(lbs.)
Prices
Maximum Height Units - 57-1/8" H (maximum allowable height)
20 MB1 Doors and 2 Parcel Lockers (PL4.5's)
31-1/8"W x 16-1/2"D
170
$2,110
15 MB1 Doors and 3 Parcel Lockers (PL4.5's, PL5)
31-1/8"W x 16-1/2"D
160
$1,935
10 MB1 Doors and 4 Parcel Lockers (PL4.5's, PL5's)
31-1/8"W x 16-1/2"D
150
$1,760
6 Parcel Lockers (PL4.5's, PL5's, PL6's)
31-1/8"W x 16-1/2"D
145
$1,360
9 MB1 Doors and 1 Parcel Locker (PL4.5)
17"W x 16-1/2"D
85
$1,035
6 MB1 Doors and 2 Parcel Lockers (PL3, PL4.5)
17"W x 16-1/2"D
85
$950
3 Parcel Lockers (PL4.5, PL5, PL6)
17"W x 16-1/2"D
80
$680
2 Receptacle Bins
17"W x 16-1/2"D
75
$705
1 Collection Box
17"W x 16-1/2"D
85
$830
11 Door High Units - 41-3/8" H (equivalent to 11 standard mailbox doors (MB1) high)
20 MB1 Doors - no Parcel Lockers
31-1/8"W x 16-1/27"D
145
$1,720
15 MB1 Doors and 1 Parcel Locker (PL5)
31-1/8"W x 16-1/27"D
135
$1,545
10 MB1 Doors and 2 Parcel Lockers (PL5's)
31-1/8"W x 16-1/27"D
135
$1,370
4 Parcel Lockers (PL5's, PL6's)
31-1/8"W x 16-1/27"D
130
$975
9 MB1 Doors  no Parcel Lockers
17"W x  16-1/2"D
75
$840
4 MB1 Doors  and 1 Parcel Locker (PL5)
17"W x  16-1/2"D
75
$665
Stand-alone 2 Parcel Lockers (PL5, PL6)
17"W x  16-1/2"D
65
$485
1 Receptacle Bin
17"W x  16-1/2"D
50
$520
1 Collection Box
17"W x  16-1/2"D
60
$645
10 Door High Units - 37-7/8"H (equivalent to 10 standard mailbox doors (MB1) high)
10 MB1 Doors and 2 Parcel Lockers (PL4, PL4.5)
31-1/8"W x 16-1/27"D
130
$1,310
9 MB1 Doors and 2 Parcel Lockers (PL4.5, PL5)
31-1/8"W x 16-1/27"D
130
$1,260
6 MB1 Doors and 2 Parcel Lockers (PL6's)
31-1/8"W x 16-1/27"D
125
$1,200
4 Parcel Lockers (PL5's)
31-1/8"W x 16-1/27"D
120
$900
4 MB1 Doors and 1 Parcel Locker (PL4.5's)
17"W x 16-1/2"D
75
$635
3 MB1 Doors and 1 Parcel Locker (PL5)
17"W x 16-1/2"D
70
$585
2 Parcel Lockers (PL5)  
17"W x 16-1/2"D
65
$450
1 Receptacle Bin
17"W x 16-1/2"D
45
$485
1 Collection Box
17"W x 16-1/2"D
55
$610
6 DOOR HIGH UNITS - 23-7/8" H (equivalent to 6 standard mailbox doors (MB1) high)
 10 MB1 Doors - no Parcel Lockers  
31-1/8"W x 16-1/27"D
90
$920
 9 MB1 Doors - no Parcel Lockers  
31-1/8"W x 16-1/27"D
90
$840
5 MB1 Doors and 1 Parcel Lockers (PL5)
31-1/8"W x 16-1/27"D
85
$745
2 Parcel Lockers (PL6's)  
31-1/8"W x 16-1/27"D
80
$520
 4 MB1 Doors - no Parcel Lockers  
17''W x  16-1/2"D  
50
$440
 3 MB1 Doors - no Parcel Lockers  
17''W x  16-1/2"D  
50
$360
1 Parcel Locker (PL6)  
17''W x  16-1/2"D  
45
$260

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
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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