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404 4 ft Type IAA Aluminum Step Ladder

Performance Overview

StyleSizeReach HeightLoad CapacityType
Single-Sided4 ft8 ft375 lbsType IAA Duty Rating

The aluminum 400 series of Step Ladders has a duty rating of 375 lbs and features heavy gauge TOOL-TRA-TOP®s. All steps are knee braced and the TRACTION-TRED® steps are slip resistant. The rear rail is a full U channel and a full set of rear horizontals are spaced one per foot. The 14' and 16' models carry a duty rating of 300 lbs.


  • Heavy gauge TOOL-TRA-TOP® with thick side plates
  • Shoulder bolt and lock nut on top hinge; 4 solid aluminum rivets attach top to each rail
  • All steps are knee-braced
  • Slip-resistant TRACTION-TRED® steps are double riveted to rails for durability
  • Heavy duty external spreaders
  • Full set of rear horizontals spaced one per foot
  • Full U-channel rear rails
  • Full set of rear horizontals and spaced one per foot
  • Slip-resistant foot pad
  • Optional molded pail shelf kit, model no. PK76-3


FeatureSize / Details
Size4 ft
Load Capacity375 lbs
TypeType IAA Duty Rating
Maximum Standing Ht1 ft11 in
Reach Height8 ft
Top Dimension7 in x 14 in
Platform Depth12-5/8 in x 15 in
Platform Width12-5/8 in x 15 in
Description of Top FeaturesParts tray, 2 drill holes, 2 tool slots
With 1 Pail ShelfNo
CertificationsANSI A14.2 (2007); OSHA
Front Flange1-1/8 in
Front Rails3-1/8 in
Rear Flange1 in
Rear Rails1-3/4 in
Spreader MaterialAluminum
Approx. Spread30-1/8 in
Approx. Cu. Ft. Per Unit4.8

Package Contents

Part NumberQtyDescription



Additional 400 Series Models

Model No.SizeLoad CapacityTypeMaximum Standing HtReach HeightApprox. Spread
4044 ft375 lbsType IAA Duty Rating1 ft11 in8 ft30-1/8 in
4066 ft375 lbsType IAA Duty Rating3 ft10 in10 ft42-7/16 in
4088 ft375 lbsType IAA Duty Rating5 ft9 in12 ft54-3/4 in
41010 ft375 lbsType IAA Duty Rating7 ft8 in14 ft67 in
41212 ft375 lbsType IAA Duty Rating9 ft7 in16 ft79-3/8 in
41414 ft300 lbsType IA Duty Rating11 ft6 in18 ft91-11/16 in
41616 ft300 lbsType IA Duty Rating13 ft5 in20 ft104 in