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Products > Climbing-Equipment > Extension Ladders > D1700-2EQ Series > D1720-2EQ 20 ft Type II Aluminum D-Rung The Equalizer® Extension Ladder > D1720-2EQ

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D1720-2EQ 20 ft Type II Aluminum D-Rung The Equalizer® Extension Ladder

Performance Overview

SizeStyleApprox. Closed LengthReach HeightLoad CapacityPerformance Rating
20 ftMulti Section10 ft19 ft225 lbs

The Equalizer® D1720-2EQ aluminum extension ladder eliminates uneven ground with the factory installed adjustable EverLevel® leveling system. This system precisely adjusts in 3/8 in increments up to 8 1/4in, making it easy to use. The dual action feet on the ladder are for use on hard or penetrable surfaces and swivel easily. The TRACTION-TRED® D-rungs are slip resistant. The ladder has a duty rating of 225 pounds making it durable, long lasting and able to meet the demands of the job. The exclusive ALFLO® rung joint means a TWIST-PROOF® performance every time, and the lightweight aluminum makes it easy to transport.


  • Factory installed adjustable EverLevel® leveling system exceeds OSHA and ANSI requirements
  • Easily adjustable in 3/8 in increments up to 8-1/4 in
  • Exclusive ALFLO® rung joint means TWIST-PROOF® performance
  • 1-3/4 in slip-resistant TRACTION-TRED® D-rungs
  • Durable extruded rung locks are spring loaded to operate smoothly
  • Convenient built-in bubble level
  • Heavy Duty modified I-beam side rails
  • Dual action foot for use on hard or penetrable surfaces
  • Durable shoe rests flat on slip resistent pad or in spur position for use on hard or penetrable surfaces
  • Mar-resistant end caps


FeatureSize / Details
Size20 ft
Max. Safe Working Height17 ft
Max. Open Extended Length17 ft
StyleMulti Section
Load Capacity225 lbs
Rung TypeD-Rung
Foot MaterialSlip-resistant pad
Number of Sections2
Base Width17-3/8 in outside rails (20-3/4 in to outside of feet)
CertificationsANSI A14.2 (2007); OSHA
Approx. Closed Length10 ft
Reach Height19 ft
Approx. Shipping Weight Lbs.32.5
Approx. Cu. Ft. Per Unit8.1
Performance Rating

Package Contents

Part NumberQtyDescription


Rails Dimension3 in
Flange Dimension1-1/16 in
Rung Dimension1-3/4 in
Fly Width14-1/4 in

Additional D1700-2EQ Series Models

Model No.SizeMax. Safe Working HeightMax. Open Extended LengthApprox. Closed LengthReach HeightApprox. Shipping Weight Lbs.Buy Online
Not equipped with rope and pulley
16 ft13 ft13 ft8 ft15 ft27.5
D1720-2EQ20 ft17 ft17 ft10 ft19 ft32.5
D1724-2EQ24 ft21 ft21 ft12 ft23 ft39
D1728-2EQ28 ft25 ft25 ft14 ft27 ft48.5

how do you determine working length

Asked by: bob
The working length of the ladder is the overall length of the ladder when it is extended to maximum. When the ladder is at its maximum working length, the reach height is the height a user can safely reach when standing at the highest allowable rung.
Answered by: Werner Customer Care
Date published: 2016-07-09

Does this ladder come with any instructions?

Asked by: Graham
All of the Werner ladders have full instructions labeled on the side of the ladder. All instructions for use, set up, storage, safety and caution, and how to use are located on the ladder.
Answered by: Werner Customer Care
Date published: 2015-10-03

Is a replacement bubble level available?

The bubble level on my Equalizer is broken (no fluid), perhaps because I was wearing Korkers while climbing the ladder.
Asked by: Kimbo
Unfortunately, that part is not replaceable.
Answered by: Werner Customer Care
Date published: 2017-09-08

How much does this ladder weigh?

Asked by: Kenehan
The D1728-2EQ Aluminum Extension ladder weighs 48.5 pounds.
Answered by: Werner Customer Care
Date published: 2016-02-04

Can both legs be adjusted without moving any parts from one leg to the another leg?

The picture on the web page shows the outside of the leg that has been adjusted. It does not show the outside of the of the leg that has not been adjusted. My question is does any part from the leg that was adjusted have to be moved to the other leg in order for that leg to be adjusted at a later date? I am hoping the Equalizer System works on both legs without having to exchange any parts from one leg to the other leg.
Asked by: Larry
Yes both legs can be adjusted without moving parts from 1 leg to the other. Each side has its own pin to allow leveling.
Answered by: Werner Customer Care
Date published: 2015-10-29

Model # D1724-2EQ vs. Model # D1824-2EQ

Are these two ladders virtually identical, except for the Duty Rating? If so, what is different about the 1824 that makes it able to handle 25 more pounds?
Asked by: Steve
heavier construction, aluminum thickness rung construction etc
Answered by: Werner Customer Care
Date published: 2017-06-27

What is the collapsed length of the D1716-2WQ

Asked by: Andy
The collapsed length of the ladder would be 8ft.
Answered by: Werner Customer Care
Date published: 2015-09-29

I have the D1728-2EQ Type II Aluminum. At its full extension, how many rungs overlap?

According to your specifications (25 feet long), it appears it must overlap no more than 3 steps/2 spaces. Is that correct?
Asked by: Chuck
Yes that is correct. At it's maximum extension the ladders overlap by three rungs. Thank you for your inquiry.
Answered by: Werner Customer Care
Date published: 2015-10-03

can i get replacement bolt that hold on adjustable leg on

have broken bolt that press into yellow braket that holds adjustable leg section.
Asked by: concerned
Please contact our customer care department at 888-523-3370 Monday through Friday 8 AM till 5 PM EST to order/inquire about the replacement part/assistance you are seeking. Please have your complete model number and MK/MARK number off of your model number label at the time of your call.
Answered by: Werner Customer Care
Date published: 2016-03-08
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Different types of ladders are designed to keep you safe and productive when climbing or standing. Using the wrong style of ladder or simply ignoring the limitations of climbing equipment can result in a fall or serious injury.
Height is referring to the actual ladder height. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. The highest standing level is four rungs down from the top. The highest permitted standing level on a stepladder is two steps down from the top.

Reach height is the maximum reach assuming a 5’6” person with a vertical 12” reach.
Ladders are designed to safely hold up to a specific amount of weight. The Werner Performance System defines five different capacities using a color and star rating system. The Duty Rating is defined as the maximum safe load capacity of the ladder. A person’s fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the load capacity.

Werner offers ladder made from fiberglass and aluminum. Each material has characteristics which make it best for certain applications, or one material may simply fit the personal preferences of the user. For example, if working around electricity users should select fiberglass products due to their non-conductive side rails.