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524-1 Extension Ladders |  - Werner Asia


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524-1 24 ft Type IA Aluminum Round Rung Straight Ladder

Performance Overview

SizeStyleReach HeightLoad Capacity
24 ftSingle Section26 ft300 lbs

The 524-1 one-section aluminum round rung 24 ft straight ladder has a duty rating of 300 pounds. The exclusive ALFLO® rung joint means TWIST-PROOF® performance every time. The side rails are extra heavy duty I-beam rails and the aluminum round rungs are deeply serrated for slip resistance.


  • Exclusive ALFLO® rung joint means TWIST-PROOF® performance
  • 1-1/4 in slip-resistant TRACTION-TRED® round rungs
  • Extra heavy duty I-beam rails
  • Heavy duty, self-aligning, free-swinging shoe with slip-resistant tread and replaceable steel spur plate
  • Hoop end caps


FeatureSize / Details
Size24 ft
Load Capacity300 lbs
TypeType IA Duty Rating
StyleSingle Section
Max. Open Extended Length24 ft
Number of Sections1
Foot DesignHeavy duty shoe with slip-resistant tread and spur plate
Foot MaterialSlip-resistant pad
Approx. Cu. Ft. Per Unit14
Rails Dimension4 in
Base Width20-5/8 in
Flange Dimension1-3/8 in
CertificationsANSI A14.2 (2007); OSHA
Reach Height26 ft
Rung Dimension1-1/4 in
Rung TypeRound

Package Contents

Part NumberQtyDescription



Additional 500-1 Series Models

Model No.SizeLoad CapacityTypeMax. Open Extended LengthApprox. Cu. Ft. Per UnitRails Dimension
508-18 ft375 lbsType IAA Duty Rating8 ft2.93 in
510-110 ft375 lbsType IAA Duty Rating10 ft3.63 in
512-112 ft375 lbsType IAA Duty Rating12 ft4.33 in
514-114 ft375 lbsType IAA Duty Rating14 ft53 in
516-116 ft375 lbsType IAA Duty Rating16 ft5.73 in
518-118 ft300 lbsType IA Duty Rating18 ft6.43 in
520-120 ft300 lbsType IA Duty Rating20 ft7.13 in
524-124 ft300 lbsType IA Duty Rating24 ft144 in