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Products > Climbing-Equipment > Extension Ladders > D1300-2 Series > D1320-2 20 ft Type I Aluminum D-Rung Extension Ladder > D1320-2

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D1320-2 20 ft Type I Aluminum D-Rung Extension Ladder

Performance Overview

SizeStyleApprox. Closed LengthReach HeightLoad CapacityPerformance Rating
20 ftMulti Section10 ft19 ft250 lbs

The D1320-2 Aluminum 20 ft Extension Ladder has a duty rating of 250 pounds and heavy duty modified I-beam side rails. The TRACTION-TRED® D rungs are slip resistant and the side rails are interlocking. Heavy duty spring-loaded locks operate smoothly. Durable shoes rest flat or are held in spur position with SHU-LOK® feature. Mar-resistant end caps help protect the surface ladder is leaning against. Exclusive ALFLO® rung joint means TWIST-PROOF® performance every time.


  • Exclusive ALFLO® rung joint means TWIST-PROOF® performance
  • 1-3/4 in slip-resistant TRACTION-TRED® D-rungs
  • Heavy Duty extruded rung locks are spring loaded to operate smoothly
  • Mar-resistant end caps
  • Smooth operating pulley with polypropylenerope
  • Heavy Duty modified I-beam side rails
  • Durable shoe rests flat on slip resistent pad or is held in spur position with SHU-LOK® feature


FeatureSize / Details
Size20 ft
Max. Safe Working Height17 ft
Max. Open Extended Length17 ft
StyleMulti Section
Load Capacity250 lbs
Rung TypeD-Rung
Foot MaterialSlip-resistant pad
Number of Sections2
Base Width17-3/8 in outside rails
CertificationsANSI A14.2 (2007); OSHA
Approx. Closed Length10 ft
Reach Height19 ft
Approx. Shipping Weight Lbs.32.5
Approx. Cu. Ft. Per Unit7.2
Performance Rating

Package Contents

Part NumberQtyDescription


Rails Dimension3 in
Flange Dimension1-1/16 in
Rung Dimension1-3/4 in
Fly Width15-1/4 in

Additional D1300-2 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 ft26
D1320-220 ft17 ft17 ft10 ft19 ft32.5
D1324-224 ft21 ft21 ft12 ft23 ft40
D1328-228 ft25 ft25 ft14 ft27 ft50.5
D1332-232 ft29 ft29 ft16 ft31 ft63.5
D1336-236 ft32 ft21 ft18 ft34 ft77.5
D1340-240 ft35 ft35 ft20 ft37 ft85.5

D1320-2 20 ft Type I Aluminum D-Rung Extension Ladder is rated 2.7 out of 5 by 3.
Rated 4 out of 5 by from This ladder works well for around the house use. I own a Werner Extension Ladder. Model D1382-2 I need to replace the rope. What length should i buy?
Date published: 2017-07-25
Rated 1 out of 5 by from can not bring it down because the flippers are plastic the plastic flippers catch on the steps so they won't slide past so you can't bring the ladder down. needs metal flippers. bad design.
Date published: 2016-10-08
Rated 3 out of 5 by from Good ladder, bad rope. This is a good ladder, and as a roofer for the last 25 years I know a thing or two about ladders. The main problem is that when lowering the ladder, the rope tends to track off of the pulley get stuck between the pully and the bracket that holds it to the rung. You are left to either "walk" it down with it stuck in an extended position or push it up to the next rung, lean it in and climb up to the pulley and unjam it. This has been a problem since I bought the ladder, and has happened with nearly all the Werner ladders I have purchased. I seem to remember back in the day that the pulleys were made of METAL, not plastic.
Date published: 2013-04-22
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Asked by: Anonymous
Please call Customer Care at 888-523-3370 Monday through Friday from 8:00 AM to 5:00 PM EST. We need to know the mark/mk number for your ladder. Please go to the following link, to see how to find this information: http://parts.wernerco.com/Home/HowToFind
Answered by: Werner Customer Care
Date published: 2017-06-14

My roof gutters are 28' above ground level. Can I use a 32' extension ladder for gutter cleaning or do I need a 36' ladder?

Asked by: Mike
You would want to go with the D1336-2 in order to work safely on gutters at the 28ft height.
Answered by: Werner Customer Care
Date published: 2014-10-02

I'm trying to compare the actual ladders weights, not load capacity.

After 25 years it's time to replace my 24' type 1A fiberglass extension ladders. Borrowing a 28' type 1 aluminum was eye opening as to the weight difference. Where can I compare how much each ladder weighs?
Asked by: Dave the window cleaner
You can go to the following website and see the model numbers for the 28' aluminum extension ladders: http://www.wernerco.com/us/en/products/climbing-equipment/extension-ladders?ipp=24&cp=1&sort=default&tts=1467999705019 To see the detailed information on the ladder, click on view details. You will find the shipping weight under specifications.
Answered by: Werner Customer Care
Date published: 2016-07-08

I have a D1332-2. Can I use either the PK70 or PK 80? What is the difference between the two?

Asked by: Don
The D1300-2 series Aluminum Extension Ladder can use either the PK70-1 or the PK80-2 ladder levelers. The PK80-2 Level Master is an automatic leveler where both legs will adjust to height by setting the ladder on the ground. Installation requires the feet of the ladder to be cut off by using templates to mark the leveler location. The leveling feet become the permanent feet of the ladder. Please see the link below for further information. http://us.wernerco.com/en/view/Products/Climbing-Equipment/Accessories/PK80-2/PK80-2 The PK70-1 LevelLok Levelers have two base units, one attaches to each side of ladder, and the leveling foot can be used on either side as needed. The ladder will keep original feet, but use the leveler on each side as needed. http://us.wernerco.com/en/view/Products/Climbing-Equipment/Accessories/PK70-1/PK70-1
Answered by: Werner Customer Care
Date published: 2013-11-20

Separate base from fly on ext ladders and safely utilize?

Can all of your aluminum extension ladders be separated (base from the fly) and safely be used individually? Are there only certain ladders (5 star vs 3 star for example) in which this practice is deemed acceptable?
Asked by: Camsaw
Not all Werner extension ladders may be separated and used as individual ladders. Certain ladders may be separated and used as the base section only, while some the base and the fly section may be used separately. Only some Type IA and Type IAA may be used in this manner. To use the fly section as a single ladder, the ladder must meet codes for a straight ladder, as well as have the proper slip resistant shoes. All instructions for how to properly use the ladder, and which ladders may be used separately are labeled on the side of the ladder.
Answered by: Werner Customer Care
Date published: 2015-01-02

How much does the D1340-2 weigh? It's the 40 footer rated to 250lbs.

Asked by: peter
The D1340-2 aluminum extension ladder weighs 85.5 pounds.
Answered by: Werner Customer Care
Date published: 2013-10-22

for tree triming can a 71-1 padded v rung be installed?

ladder d1336, i want to use this ladder to trim trees and would like your suggestion about accessories to make it safer.
Asked by: Butch
Unfortunately we do not manufacture an accessory that fits on the D1336-2 for the application you described.
Answered by: Werner Customer Care
Date published: 2016-03-14

Need 30' ladder

I need a 30' ladder, aluminum, Type 1, width 17-1/2" that is NOT an extension ladder. It should be one piece. Do you make this type of product. It's for our Intel Santa Clara campus.
Asked by: Stephen
The longest available single section straight ladder is a 24' aluminum ladder, model number 524-1. This ladder is 20-5/8 inches wide. The longest straight ladder under 17-1/2 inches is the 20' model 520-1.
Answered by: Werner Customer Care
Date published: 2013-10-22

Will AC78 work with D1316-2?

Asked by: Tad
No, you will need to order the AC96.
Answered by: Werner Customer Care
Date published: 2016-05-31

I need a new rope for Model D133202. Where can I get it? How much on-line/

Asked by: Ponch
Please visit our website at www.buywerneronline.com to order your desired replacement parts online. Have your model number and MK/MARK number available off of your ladder/accessory at the time to find a complete list of replacement parts.
Answered by: Werner Customer Care
Date published: 2014-06-26
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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.