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Mayline EFO2424433A 4-Post Filing Double Entry - Adder Unit

By Mayline | Mfr#: EFO2424433A | Tiger#: TM79049
4-Post Filing Double Entry - Adder Unit MAYEFO2424433A-

Product Highlights

  • Optional Sizes and Number of Tiers 
  • Supports Letter or Legal Size Filing
  • Double Entry Shelves Adjust on 1½" Centers 
  • Easy to Assemble, no Hardware Required
  • 240 lbs Weight Capacity Per Shelf
List Price: $435.00
Your Price: $274.90
You Save: $160.10 - 37%
Availability: In Stock
Ships Out Within: 6-8 Weeks
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  • Product Options
    Choose Design

    Select Media Type

    Select Openings

    Choose Width

Ships Within: 6-8 Weeks

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Special Note

Dividers are required to complete your Filing Unit Order. Please make your choice HERE

At, we do our best to provide our customers with quality products at the lowest possible price. If you see an item marked with a Price Match Guarantee seal for less on a competitor website, we will meet or beat it! The site be an authorized distributor and the price quoted must be the standard advertised price.

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Overview for Mayline EFO2424433A 4-Post Filing Double Entry - Adder Unit

Mayline 4-Post Filing Double Entry - Adder Unit is a highly efficient storage solution that has been designed to specifically address your unique current and future storage needs. Start off with a basic Double Entry unit and build up your storage system using Adder models. With Mayline 4-Post shelving systems you are free to create and alternate your storage space to fit folders, organize files, stock boxes and what not. Experience the benefits of a greater visibility, one-touch file retrieval, simple assembly and a large variety of upgrades.

Model Features
This Mayline Double Entry Adder Unit features two types of uprights: Closed "T" and open "T" that are normally used for the internal support. The shelves are made of a 22-gauge steel that ensures exceptional durability and a weight capacity of 240 lbs per shelf. The uprights are slotted on the sides to allow customizable shelf positioning. Each shelf adjusts on 1.5" along the 4-Post Filing Unit. Double Entry design allows storing and accessing files from both sides of the unit. It has a double-depth for back-to-back storage. This basic model comes without shelf dividers that can be purchased separately if required.

4-Post Filing Double Entry - Adder Unit - Shelving Options Chart 
Item #Media DepthOpeningsWidth Design List PricePrice
EFO2424433ALetter24"324"Open 'T' $431$274,12
EFO3024433A330"Open 'T' $433$275,16
EFO3624433A336"Open 'T' $433$275,16
EFO4224433A342"Open 'T' $476$297,52
EFT2424433A324"Closed 'T' $502$311,04
EFT3024433A330"Closed 'T' $504$312,08
EFT3624433A336"Closed 'T' $504$312,08
EFO4824433A348"Open 'T' $534$327,68
EFT4224433A342"Closed 'T' $547$334,44
EFT4824433A348"Closed 'T' $605$364,60
EFO2424656A624"Open 'T' $701$414,52
EFO3024656A630"Open 'T' $703$415,56
EFO3624656A636"Open 'T' $703$415,56
EFT2424656A624"Closed 'T' $782$456,64
EFT3024656A630"Closed 'T' $784$457,68
EFT3624656A636"Closed 'T' $784$457,68
EFO4224656A642"Open 'T' $795$463,40
EFO2424767A724"Open 'T' $803$467,56
EFO3024767A730"Open 'T' $805$468,60
EFO3624767A736"Open 'T' $805$468,60
EFT4224656A642"Closed 'T' $876$505,52
EFO4824656A648"Open 'T' $894$514,88
EFO2424868A824"Open 'T' $898$516,96
EFO4224767A742"Open 'T' $900$518,00
EFO3024868A830"Open 'T' $900$518,00
EFO3624868A836"Open 'T' $900$518,00
EFT2424767A724"Closed 'T' $902$519,04
EFT3024767A730"Closed 'T' $904$520,08
EFT3624767A736"Closed 'T' $904$520,08
EFO2424979A924"Open 'T' $989$564,28
EFO3024979A930"Open 'T' $991$565,32
EFO3624979A936"Open 'T' $991$565,32
EFT4224767A742"Closed 'T' $998$568,96
EFT2424868A824"Closed 'T' $1 007$573,64
EFO4224868A842"Open 'T' $1 007$573,64
EFT3024868A830"Closed 'T' $1 009$574,68
EFT3624868A836"Closed 'T' $1 009$574,68
EFT4824656A648"Closed 'T' $1 041$591,32
EFO4824767A748"Open 'T' $1 092$617,84
EFO4224979A942"Open 'T' $1 111$627,72
EFT2424979A924"Closed 'T' $1 112$628,24
EFT3024979A930"Closed 'T' $1 114$629,28
EFT3624979A936"Closed 'T' $1 114$629,28
EFT4224868A842"Closed 'T' $1 116$630,32
EFT4824767A748"Closed 'T' $1 190$668,80
EFO4824868A848"Open 'T' $1 226$687,52
EFT4224979A942"Closed 'T' $1 233$691,16
EFT4824868A848"Closed 'T' $1 335$744,20
EFO4824979A948"Open 'T' $1 357$755,64
EFT4824979A948"Closed 'T' $1 479$819,08
EFO2430433ALegal30"324"Open 'T' $464$291,28
EFO3030433A330"Open 'T' $466$292,32
EFO3630433A336"Open 'T' $466$292,32
EFO4230433A342"Open 'T' $518$319,36
EFT2430433A324"Closed 'T' $558$340,16
EFT3030433A330"Closed 'T' $560$341,20
EFT3630433A336"Closed 'T' $560$341,20
EFO4830433A348"Open 'T' $568$345,36
EFT4230433A342"Closed 'T' $612$368,24
EFT4830433A348"Closed 'T' $662$394,24
EFO2430656A624"Open 'T' $770$450,40
EFO3030656A630"Open 'T' $772$451,44
EFO3630656A636"Open 'T' $772$451,44
EFT3630656A636"Closed 'T' $828$480,56
EFO4230656A642"Open 'T' $869$501,88
EFT2430656A624"Closed 'T' $880$507,60
EFT3030656A630"Closed 'T' $882$508,64
EFO2430767A724"Open 'T' $883$509,16
EFO3030767A730"Open 'T' $885$510,20
EFO3630767A736"Open 'T' $885$510,20
EFO4830656A648"Open 'T' $952$545,04
EFO2430868A824"Open 'T' $977$558,04
EFO3030868A830"Open 'T' $979$559,08
EFO3630868A836"Open 'T' $979$559,08
EFT4230656A642"Closed 'T' $980$559,60
EFO4230767A742"Open 'T' $997$568,44
EFT2430767A724"Closed 'T' $1 007$573,64
EFT3030767A730"Closed 'T' $1 009$574,68
EFT3630767A736"Closed 'T' $1 009$574,68
EFT4830656A648"Closed 'T' $1 062$602,24
EFO2430979A924"Open 'T' $1 076$609,52
EFO3030979A930"Open 'T' $1 078$610,56
EFO3630979A936"Open 'T' $1 078$610,56
EFO4830767A748"Open 'T' $1 093$618,36
EFO4230868A842"Open 'T' $1 106$625,12
EFT2430868A824"Closed 'T' $1 119$631,88
EFT4230767A742"Closed 'T' $1 121$632,92
EFT3030868A830"Closed 'T' $1 121$632,92
EFT3630868A836"Closed 'T' $1 121$632,92
EFO4830868A848"Open 'T' $1 215$681,80
EFT4830767A748"Closed 'T' $1 217$682,84
EFO4230979A942"Open 'T' $1 220$684,40
EFT2430979A924"Closed 'T' $1 232$690,64
EFT3030979A930"Closed 'T' $1 234$691,68
EFT3630979A936"Closed 'T' $1 234$691,68
EFT4230868A842"Closed 'T' $1 248$698,96
EFO4830979A948"Open 'T' $1 343$748,36
EFT4830868A848"Closed 'T' $1 357$755,64
EFT4230979A942"Closed 'T' $1 376$765,52
EFT4830979A948"Closed 'T' $1 499$829,48

Customize Your 4-Post Filing Double Entry - Adder Unit

The Mayline Adder sections are available in a great variety of configurations allowing to customize unit dimensions, number of shelves and uprights style. See below to view all the customizable options:

Media Type
There are two depth options to choose from, corresponding to two media types: Letter or Legal.

  • Letter Size - 24" Depth
  • Legal Size - 30" Depth

Number of Openings
This 4-Post Filing Adder Unit is available in five variations that differ by number of tiers that correspond to the number of usable shelves.

  • 3 Tiers
  • 6 Tiers
  • 7 Tiers
  • 8 Tiers
  • 9 Tiers

Unit Width
A great choice of width options promotes flexibility in how much you would like to expand you filling system.

  • 24"
  • 30"
  • 36"
  • 42"
  • 48"

Choose between closed or open "T" type uprights to best suit your needs.

  • Open "T" Upright
  • Closed "T" Upright

Optional Paint Colors
Mayline 4-Post Filing System comes in 17 finish colors at your choice.
*Please write your color preference in your order special notes.

To purchase this product, please select from the drop down menu above

What's in the Box
  • 1 Upright
  • Shelves (quantity is optional) 
  • 1 Canopy Top 
  • Shelf Supports
  • Shelf Reinforcements as Required
  • Stops 
  • Limited Lifetime Warranty