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T400 Series Aluminum Twin Stepladders

>Series Callout
The aluminium Multi-Use Twin Stepladder T400 series has a duty rating of 375 pounds per side making these ladders ideal for one or two-person jobs. The tops are made of heavy gauge extruded aluminum, and the steps are connected with a solid double riveted construction. The extra wide TRACTION-TRED® steps are slip resistant. The bottom steps are braced with full U channel knee braces.


  • Thick side plates
  • Heavy gauge aluminum extruded top
  • Shoulder bolt and lock nut on top hinge; 4 solid aluminum rivets attach top to each rail
  • Solid double riveted construction
  • Heavy duty external aluminum spreaders on 4 ft and 6 ft models; internal spreaders on 8 ft, 10 ft and 12 ft
  • Slip-resistant Traction-Tred® extra wide steps
  • Full U-channel bracing on bottom steps
  • Slip-resistant foot pad
  • Design for one or two-person jobs
  • Maximum load per side, including person and materials, shall not exceed duty rating of ladder

Performance Overview

StyleSizeReach HeightLoad CapacityType
Twin4 ft -- 12 ft8 ft -- 16 ft375 lbsType IAA Duty Rating



Model No.SizeMaximum Standing HtReach HeightApprox. Cu. Ft. Per Unit
T4044 ft1 ft 11 in8 ft5
T4066 ft3 ft 10 in10 ft8.8
T4088 ft5 ft 9 in12 ft13.3
T41010 ft7 ft 8 in14 ft18.7
T41212 ft9 ft 7 in16 ft25

Type IAA duty rating is for platforms ranging in size from 4 ft to 8 ft