Series AE1200HD

Louisville Ladder 20-Foot Aluminum Extension Ladder, Type IAA, 375-pound Load Capacity, AE1220HD

Duty Rating: Type IAA

Load: 375

This Louisville 20 foot aluminum industrial extension ladder has a 375 pound load capacity, rated ANSI Type IAA. It is equipped with the MAXLOCK rung lock, custom engineered from a patented, advanced molecular polymer, MAXLOCK is the strongest, toughest, lightest rung lock ever made. This ladder includes the patented QuickLatch RungLock system that provides a simple, intuitive method of securing the fly and base sections of the ladder when extended. This ladder also features outside slide guides, D-shaped rungs fully serrated for a slip resistant surface, heavy duty aluminum rail end caps, rope and pulley, full I-beam for a more stable connection and to prevent twisting, and swivel safety shoes to be used with the tread down or in spike position. The Louisville AE1220HD aluminum extension ladder meets or exceeds the safety standards set by ANSI, and OSHA.


  • Includes our custom engineered MAXLOCK that is made from a patented and advanced molecular polymer. Our MAXLOCK is the strongest toughest lightest rung lock ever made
  • D-Shaped Rungs
  • Full I-Beam
  • Aluminum Cast Rail End Caps
  • Outside Slide Guides
  • Swivel Safety Shoes
  • Patented Quicklatch Runglock System
Where to Buy
Load Capacity
Duty Rating
Type IAA

Product Specifications

  • Product: Extension Ladders
  • SKU: AE1220HD
  • Style: Standard
  • Duty Rating: Type IAA
  • Load Capacity (lbs): 375
  • Size: 20
  • Number of Steps: 20
  • Rung Type: D-rung
  • Step Depth: 1.5
  • Material: Aluminum
  • Weight: 43
  • Maximum Standing Height (in): 17’
  • Closed Volume (cu. ft.): 9.324
  • Closed Height: 125.5
  • Closed Depth: 6.5
  • Closed Width (in): 19.75
  • Section Length (ft): 10
  • Total Length (ft): 20
  • Max. Extended Length (ft): 17
  • Rail Depth (in): 3
  • Inside Width Base (in): 16.438
  • Inside Width Fly (in): 14.313
  • Outside Width Base (in): 19.063
  • Outside Width Fly (in): 16.938
  • ANSI Certified
  • OSHA Certified

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