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T412 Stepladders |  - Werner Asia


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T412 12 ft Type IAA Aluminum Twin Ladder

Performance Overview

StyleSizeReach HeightLoad CapacityType
Twin12 ft16 ft375 lbsType IAA Duty Rating

The T412 Aluminum Multi-use Twin 12 ft Step Ladder has a duty rating of 375 pounds per side making the T400 series 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 4ft and 6ft models; internal spreaders on 8ft 10ft and 12ft
  • 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


FeatureSize / Details
Size12 ft
Reach Height16 ft
Maximum Standing Ht9 ft 7 in
Load Capacity375 lbs
TypeType IAA Duty Rating
Approx. Product Height12 ft
Approx. Product Width35-1/4 in
Approx. Spread92-1/4 in
CertificationsANSI A14.2 (2007); OSHA
With 1 Pail ShelfNo
Spreader MaterialAluminum
Approx. Cu. Ft. Per Unit25

Package Contents

Part NumberQtyDescription


Top Dimension8-1/4 in x 14 in
Front Rails3-1/8 in
Front Flange1-1/8 in
Rear Rails3-1/8 in
Rear Flange1-1/8 in

Additional T400 Series Models

Model No.SizeReach HeightMaximum Standing HtApprox. Product HeightApprox. Product WidthApprox. Spread
T4044 ft8 ft1 ft 11 in4 ft21-1/4 in36-1/4 in
T4066 ft10 ft3 ft 10 in6 ft24-3/4 in50-1/4 in
T4088 ft12 ft5 ft 9 in8 ft28-1/4 in64-1/4 in
T41010 ft14 ft7 ft 8 in10 ft31-3/4 in78-1/4 in
T41212 ft16 ft9 ft 7 in12 ft35-1/4 in92-1/4 in