Products > Climbing-Equipment > Extension Ladders > 3500-3 Series > 3516-3 16ft Type II Compact Aluminum D-Rung Extension Ladder > 3516-3

3516-3 Extension Ladders - Keller US
3516-3 Extension Ladders - Keller US3516-3 Extension Ladders - Keller US3516-3 Extension Ladders - Keller US3516-3 Extension Ladders - Keller US3516-3 Extension Ladders - Keller US
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3516-3 16ft Type II Compact Aluminum D-Rung Extension Ladder


SizeStyleMax. Safe Working HeightReach HeightLoad Capacity
16ftCompact13ft15ft225lb Load Capacity Commercial Use

The 3516-3 Aluminum extension ladder is a compact, 3 section ladder that has a duty rating of 225 pounds and interlocking side rails. The D rungs are slip resistant and the spring-loaded locks operate smoothly for easy operation. Shoes rest flat or are heldin spur position with the swiveling shoes feature. Mar-resistant end caps also help protect the surface the ladder is leaning against. Exclusive 3-piece rung-to-rail connection means twist-proof performance every time.


  • Compact design retracts to 6ft 3 in, 2ft shorter than a conventional 2 section, 16ft extension ladder
  • Same usable length as a conventional 2 section, 16ft ladder
  • Easy to maneuver around corners and through doors
  • Versatile design for indoor or outdoor use
  • More overlapping rung locations for improved foot comfort
  • Convenient carry handle
  • Exclusive 3-piece rung-to-rail connection means twist-proof performance
  • 1-1/2in Slip-resistant D-rung steps
  • Durable extruded rung locks are spring loaded to operate smoothly
  • Mar-resistant end caps
  • Heavy duty modified I-beam side rails


FeatureSize / Details
Unique FeaturesCompact Designs
Max. Safe Working Height13ft
Max. Open Extended Length13ft
Load Capacity225lb Load Capacity Commercial Use
Duty RatingType II Duty Rating
Approx. Closed Length75.5in
Approx. Cu. Ft. Per Unit5.9
Approx. Product Weight (lb)30.1
Approx. Shipping Weight (lb)30.1
Base Width18in
CertificationsANSI A14.2 (2007), OSHA
Flange Dimension1in
Max. Load225lb
Number of Sections3
Reach Height15ft
Section x Rungs2 x 8
Rails Dimension3in
Rung Dimension15-1/4 in x 1-1/2in
Rung TypeD-Rung

Package Contents

Part NumberQtyDescription



Additional 3500-3 Series Models

Model No.SizeMax. Safe Working HeightMax. Open Extended LengthStyleApprox. Product Weight (lb)Approx. Shipping Weight (lb)
3524-324ft20ft21ftMulti Section43.643.6

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 reach 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.

Performance system
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.