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Products > Climbing-Equipment > Extension Ladders > 500-1 Series > 508-1 8ft Type IAA Aluminum Round Rung Straight Ladder

508-1_PI 508-1


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508-1 8ft Type IAA Aluminum Round Rung Straight Ladder

Performance Overview

SizeStyleReach HeightLoad CapacityTypePerformance Rating
8ftSingle Section11ft375 lbsType IAA Duty Rating

The 508-1 one-section aluminum round rung 8ft straight ladder has a duty rating of 375 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
  • 1-1/4in 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
Reach Height11ft
Max Working Length8ft
Extended Length8ft
StyleSingle Section
Load Capacity375 lbs
TypeType IAA Duty Rating
Performance Rating
Rung TypeRound
Foot MaterialSlip-resistant pad
Number of Sections1
Base Width16-7/8in
CertificationsANSI A14.2 (2007); OSHA
Approx. Cu. Ft. Per Unit2.9
Approx. Shipping Wt. Lbs.16.5


Rails Dimension3in
Flange Dimension1-3/16in
Rung Dimension1-1/4in

Additional 500-1 Series Models

Model No.SizeReach HeightMax Working LengthExtended LengthLoad CapacityType
508-18ft11ft8ft8ft375 lbsType IAA Duty Rating
510-110ft13ft10ft10ft375 lbsType IAA Duty Rating
512-112ft15ft12ft12ft375 lbsType IAA Duty Rating
514-114ft17ft14ft14ft375 lbsType IAA Duty Rating
516-116ft19ft16ft16ft375 lbsType IAA Duty Rating
518-118ft20ft18ft18ft300 lbsType IA Duty Rating
520-120ft22ft20ft20ft300 lbsType IA Duty Rating
524-124ft26ft24ft24ft300 lbsType IA Duty Rating

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.

Performance Overview

5 stars
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Dimensions Overview

To ensure you choose the product best suited to your needs, you should follow the Werner Safety Tips.

Specifications Overview

To ensure you choose the product best suited to your needs, you should follow the Werner Safety Tips.