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Products > Climbing-Equipment > Extension Ladders > 500-1 Series > 520-1 20 ft Type IA Aluminum Round Rung Straight Ladder > 520-1

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520-1 Extension Ladders |  - Werner Asia

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520-1 20 ft Type IA Aluminum Round Rung Straight Ladder


Performance Overview

SizeStyleReach HeightLoad Capacity
20 ftSingle Section22 ft300 lbs

The 520-1 one-section aluminum round rung 20 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.




Features

  • 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


Specifications

FeatureSize / Details
Size20 ft
Load Capacity300 lbs
TypeType IA Duty Rating
StyleSingle Section
Max. Open Extended Length20 ft
Number of Sections1
MaterialAluminum
Foot DesignHeavy duty shoe with slip-resistant tread and spur plate
Foot MaterialSlip-resistant pad
Approx. Cu. Ft. Per Unit7.1
Rails Dimension3 in
Base Width16-7/8 in
Flange Dimension1-1/4 in
CertificationsANSI A14.2 (2007); OSHA
Reach Height22 ft
Rung Dimension1-1/4 in
Rung TypeRound




Package Contents

Part NumberQtyDescription

Dimensions

FeatureSize


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