Through Wall Letter Box

  1. Through Cavity Wall Letter Box
  2. Through The Wall Letter Box

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Through the wall post boxes are fixed into property walls or panels allowing for mail to be delivered at the front and retrieved at the back. Through the wall post boxes are available in a variety of depths to suit the dimensions of the property walls in each project.

Telescopic through the wall post boxes are extendable and are ideal for projects where the property wall dimensions are not currently known. Fixed dimension through the wall post boxes are ideal for projects where the wall depth is known, offering a combination of cost-effective pricing and easy installation.

Through the Wall post boxes are typically manufactured using high quality zintec steel and aluminium extrusion or brushed stainless steel. Mailboxes are available in a variety of colour finishes to meet the design style of each project and location, finished with polyester powder coated paint from our standard range of RAL colours.

Popular Solutions
– The COM 3 Mailbox

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The COM 3 mailbox is an in front / out back mail storage solutions that meet the Secured by Design Homes 2016 guidelines with the use of an aperture restrictor. The COM 3 is an extremely popular mailbox that allows from a high number of mailboxes to be featured in a relatively small area.

Through the wall letter box black

Mail is securely stored in the mailbox until retrieved on the internal side of the property wall with the use of a coded key (two keys supplied with every mailbox). The COM 3 mailbox can be finished in a variety of different colours from our standard range of RAL colours.

The COM 3 Mailbox combined with a door entry system used in The ‘Door Entry System’ Project

– The Mailforce Mailbox Range

The collection of mail chutes cater for a variety of different external property wall depths and mail storage requirements. Through the wall mail chutes allow for deposits of mail to be entered at the front of the product and securely stored in the mailbox allowing for retrieval of items internally with the use of a coded key.

Mail chutes come in both fixed and telescopic dimensions, the fixed variation providing a cost effective product for projects that know the finished wall depth dimension and the telescopic mail chute popular in projects that do not know the wall depth. Each type of product can be finished a variety of colours and can incorporate both engraving or vinyl identification onto the front and rear faces of the mailbox.

The Mailforce mailbox range suitable for through the wall processing of mail

How are through the wall mailboxes installed?

An aperture in the installation wall should be prepared prior to the installation of mailboxes – dimensions can be supplied on request to suit each bank of mailboxes. An 8mm gap should be catered for around the bank of mailboxes to allow for easy installation.

The mailboxes should be placed into the cutout aperture and then screwfixed around the edges of the boxes to the wall.

Through wall letter box holder

When using through the wall mailboxes, are support lintels required?

Yes.

We recommend that a support lintel is fixed directly above the opening aperture that the mailboxes will be installed into. A support lintel will help to ensure that the weight of the property wall is distributed away from the mailboxes.

Through Wall Letter Box
A bank of multiple through the wall COM 3 mailboxes

Featured Through the Wall Mailbox Projects

Coutryside Fire Rated Project

Numerous banks of multi-occupancy Fire Rated 3 mailboxes manufactured for through-the-wall processing of mail deliveries that conform to modern Fire Rated standards.

The ‘Door Entry System’ Project

The ‘Door Entry System’ project features numerous banks of COM 3 in front / out back mailboxes integrated with an interactive door entry system for providing access to the residence.

Canning Town – Calliston Court

A small bank of ‘Mailforce 1 Fixed Depth’ mailboxes used in an external door-side panel integrated with a door entry system to provide secure access to the property.

Letter Drop Mailbox Slot – Residential Mailboxes

Through Cavity Wall Letter Box

HLD12 Letter Drop Mail Slot
  • Spring-hinged front door for door or wall installation
  • Extruded aluminum construction
  • Rough opening 5″H x 12-5/8″W
  • Frame size 6-5/16″ H x 14-1/16″W x 3/4″D
  • Colors: Anodized aluminum (standard finish), Dark Bronze, and Gold
  • Door size 4″H x 11-3/4″W
  • Engraved ‘?U.S. Mail” standard

Optional Features:

  • Engraving as specified
  • HLD12L Angled Wall Liner available
  • HLD12LS Straight Wall Liner available
  • HLD12RA Optional Back Plate Interior Frame available

Contact National Mailboxescustomer service center for more product information at 1-800-676-5161

5 Easy Ways to Order:

1: Online Ordering: Full Product Line
2: Phone: (800) 676-5161 (M-F 8am-5pm CST)
3: Fax ORDER FORM to: (414) 585-9843
4:Email Us this completed ORDER FORM
5: Mail: P.O. Box 13144, Wauwatosa, WI 53213

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Through The Wall Letter Box

Colors apply to select mailboxes which include most of the primary USPS Approved commercial mailbox product lines including the NEW 4C Series and CBUs.
All high quality powder coated finishes are rated and approved for outdoor/indoor use and installations. And all powder coated paint finish colors are weather resistant, rust proof and corrosion resistant providing decades of extended life and use.