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4C Horizontal Mailbox - Free-Standing

Made of heavy duty aluminum and stainless steel
hardware, 3900 series free-standing 4C horizontal
mailboxes are accessed from the front through one
or two (2) easy opening master door panels. Free-
standing 4C horizontal mailboxes include a U.S.P.S.
approved 4C horizontal mailbox and matching free-
standing enclosure and are available in confi-gurations
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. Free-standing 4C
mailboxes are available with standard mailbox doors
(MB1) that are 12-3/4'' W x 3-1/4'' H and larger
MB2, MB3 and MB4 mailbox doors are availale for
custom units - see door sizes below options. 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.
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 MB mailbox doors (PL6 -
20-3/4" high). The maximum height units (3916D-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. Free-
standing 4C horizontal mailboxes provide a convenient
means of installing 4C horizontal mailboxes in
locations where a wall mounted application is not
desired or available.
Note: 3900 series free-standing 4C horizontal mail-
boxes 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.
3910S-04*
3906D-10*
*10 & 6 door high 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.


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.

¹ Specify Color: 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 - FREE STANDING
MODEL
DESCRIPTION
UNIT SIZE
WEIGHT
(lbs.)
PRICE
FOR MAXIMUM HEIGHT UNITS - 72-1/8" H (includes enclosure)
20 MB1 Doors and 2 Parcel Lockers (PL4.5's)
31-3/4"W x  18-1/2"D
255
$2,750
15 MB1 Doors and 3 Parcel Lockers (PL4.5's, PL5)
31-3/4"W x  18-1/2"D
245
$2,600
10 MB1 Doors and 4 Parcel Lockers (PL4.5's, PL5's)
31-3/4"W x  18-1/2"D
235
$2,450
6 Parcel Lockers (PL4.5's, PL6's)
31-3/4"W x  18-1/2"D
230
$2,085
9 MB1 Doors and 1 Parcel Locker (PL4.5)
17-3/4"W x18-1/2"D
145
$1,670
6 MB1 Doors and 2 Parcel Lockers (PL3, PL4.5)
17-3/4"W x18-1/2"D
145
$1,595
3 Parcel Lockers (PL4.5, PL5, PL6)
17-3/4"W x18-1/2"D
140
$1,360
2 Receptacle Bins
17-3/4"W x18-1/2"D
140
$1,530
1 Collection Box
17-3/4"W x18-1/2"D
150
$1,660
11 DOOR HIGH UNITS - 69-3/8"H (includes enclosure)
20 MB1 Doors - no Parcel Lockers
31-3/4"W  x 18-1/2"D
225
$2,375
15 MB1 Doors and 1 Parcel Locker (PL5)
31-3/4"W  x 18-1/2"D
215
$2,220
10 MB1 Doors and 2 Parcel Locker (PL5's)
31-3/4"W  x 18-1/2"D
215
$2,070
4 Parcel Lockers (PL5's, PL6's)
31-3/4"W  x 18-1/2"D
210
$1,725
9 MB1 Doors - no Parcel Lockers
17-3/4"W x 18-1/2"D
130
$1,470
4 MB1 Doors and 1 Parcel Locker (PL5)
17-3/4"W x 18-1/2"D
130
$1,315
2 Parcel Lockers (PL5, PL6)
17-3/4"W x 18-1/2"D
120
$1,160
1 Receptacle Bin
17-3/4"W x 18-1/2"D
110
$1,320
1 Collection Box
17-3/4"W x 18-1/2"D
120
$1,445
10 DOOR HIGH UNITS - 52-7/8"H (includes ADA complaint enclosure)
10 MB1 Doors and 2 Parcel Lockers (PL4, PL4.5)
31-3/4"W  x 18-1/2"D
190
$1,990
9 MB1 Door and 2 Parcel Lockers (PL4.5, PL5)
31-3/4"W  x 18-1/2"D
190
$1,945
6 MB1 Door and 2 Parcel Lockers (PL6's)
31-3/4"W  x 18-1/2"D
185
$1,830
4 Parcel Lockers (PL5's)
31-3/4"W  x 18-1/2"D
180
$1,630
4 MB1 Door and 1 Parcel Locker (PL4.5)
17-3/4"W x 18-1/2"D
110
$1,265
3 MB1 Door and 1 Parcel Locker (PL5)
17-3/4"W x 18-1/2"D
105
$1,220
2 Parcel Lockers (PL5's)
17-3/4"W x 18-1/2"D
100
$1,100
1 Receptacle Bin
17-3/4"W x 18-1/2"D
100
$1,255
1 Collection Box
17-3/4"W x 18-1/2"D
110
$1,385
6 DOOR HIGH -52-7/8"H (includes ADA complaint enclosure)
10 MB1 Doors - no Parcel Lockers
31-3/4"W  x 18-1/2"D
155
$1,610
9 MB1 Doors - no Parcel Lockers
31-3/4"W  x 18-1/2"D
155
$1,540
5 MB1 Doors and 1 Parcel Locker (PL5)
31-3/4"W  x 18-1/2"D
150
$1,460
2 Parcel Lockers (PL6's)
31-3/4"W  x 18-1/2"D
145
$1,265
4 MB1 Doors - no Parcel Lockers
17-3/4"W x 18-1/2"D
90
$1,040
3 MB1 Doors - no Parcel Lockers
17-3/4"W x 18-1/2"D
90
$970
1 Parcel Locker (PL6)
17-3/4"W x 18-1/2"D
85
$885

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
² Specify - front loading (FL) or rear loading (RL)

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 Free-Standing, 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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