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T378AS 8 ft Type IA Aluminum Twin Ladder

Performance Overview

StyleSizeReach HeightLoad CapacityType
Twin8 ft12 ft300 lbsType IA Duty Rating

The T378AS Aluminum Multi-use Twin 4 ft Step Ladder has a large aluminum extruded top and features a duty rating of 300 lbs per side making these ladders ideal for one or two-person jobs. The slip-resistant TRACTION-TRED® steps on the front and rear sections are all double riveted. Heavy duty aluminum brackets hold the slip-resistant foot pads.


  • Twin sided ladder design for one or two-person jobs
  • Maximum load per side, including person and materials, shall not exceed duty rating of ladder
  • Large aluminum extruded top with thick side plates
  • Slip-resistant TRACTION-TRED® steps on front and rear sections
  • External PINCH-PROOF™ spreaders
  • Step braces on top step and bottom five steps
  • Heavy duty aluminum foot bracket with slip-resistant foot pad


FeatureSize / Details
Size8 ft
Load Capacity300 lbs
TypeType IA Duty Rating
Maximum Standing Ht5 ft 9 in
Reach Height12 ft
Top Dimension8-1/4 in x 14 in
CertificationsANSI A14.2 (2007); OSHA
Front Flange7/8 in
Front Rails3 in
Rear Rails3 in
Spreader MaterialAluminum
Approx. Cu. Ft. Per Unit8.2

Package Contents

Part NumberQtyDescription



Additional T370AS Series Models

Model No.SizeMaximum Standing HtReach HeightApprox. Cu. Ft. Per Unit
T310AS10 ft7 ft 9 in14 ft11.1
T374AS4 ft1 ft 11 in8 ft3.5
T376AS6 ft3 ft 10 in10 ft5.7
T378AS8 ft5 ft 9 in12 ft8.2