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D500-2 Series Aluminum Multi Section Extension Ladders

>Series Callout
The D500-2 aluminum extension ladders have a duty rating of 375 lbs and feature the exclusive ALFLO® rung joint for a TWIST-PROOF® performance every time. The end caps are mar resistant and notched for easy separation of sections. Both the base and the fly sections can be used separately. Internal guides increase the ease of operation when raising and lowering. The feet are heavy-duty, self-aligning and free swinging for hard or penetrable surfaces. Rugged spring-loaded locks operate smoothly. TRACTION-TRED® D-rungs are slip resistant. Duty rating changes to 300 lbs for 36 ft-48 ft models.


  • Exclusive Alflo® rung joint means Twist-Proof® performance
  • 1.75 inch slip-resistant Traction-Tred® D-rungs
  • Heavy Duty extruded rung locks are spring loaded to operate smoothly
  • Base and fly separate easily for use as an extension or two single sections
  • Smooth operating pulley design with 3/8in rope
  • Internal guides increase ease of operation
  • Extra heavy duty I-beam rails
  • Rugged spring loaded locks operate smoothly
  • Heavy duty, self-aligning, free-swinging shoe with slip-resistant tread and replaceable steel spur plate
  • Mar-resistant end caps notched for easy separation of sections

Performance Overview

SizeStyleReach HeightLoad Capacity
20 ft -- 48 ftMulti Section20 ft -- 45 ft300 lbs -- 375 lbs



Model No.SizeLoad CapacityTypeMax. Open Extended LengthApprox. Cu. Ft. Per UnitFly Width
D520-220 ft375 lbsType IAA Duty Rating17 ft8.816-7/8 in
D524-224 ft375 lbsType IAA Duty Rating21 ft10.416-7/8 in
D528-228 ft375 lbsType IAA Duty Rating25 ft12.116-15/16 in
D532-232 ft375 lbsType IAA Duty Rating29 ft13.816-15/16 in
D536-236 ft300 lbsType IA Duty Rating32 ft15.416-15/16 in
D540-240 ft300 lbsType IA Duty Rating35 ft1716-15/16 in
D544-244 ft300 lbsType IA Duty Rating39 ft21.420-5/32 in
D548-248 ft300 lbsType IA Duty Rating43 ft23.320-5/32 in

Type IAA duty rating is for extension ladders up to 32 ft