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T370 Series Aluminum Twin Step Ladders

>Series Callout
The T370 aluminum multi-use Twin Step Ladders have a large aluminum extruded top and feature a duty rating of 300 pounds per side making these ladders ideal for one or two-person jobs. The slip-resistant TRACTION-TRED® steps are all double riveted. Heavy duty aluminum brackets hold the slip-resistant foot pads.


  • Aluminum top
  • Designed for one or two person jobs
  • Designed for one person jobs
  • Designed for two person jobs
  • Knee-braced top & bottom steps and horizontals
  • Slip-resistant foot pad
  • Slip-resistant Traction-Tred steps

Performance Overview

StyleSizeReach HeightLoad Capacity
Twin Stepladder4 ft -- 10 ft8 ft -- 14 ft300 lbs


Top DimensionFront Rails DimensionFront Flange DimensionRear Rails DimensionRear Flange DimensionSteps Dimension
8-1/4 in x 14 in3 in7/8 in3 in7/8 in3 in


Model No.SizeReach HeightMax. Standing HeightApprox. SpreadApprox. Shipping Weight Lbs.Approx. Cu. Ft. Per UnitBuy Online
T31010 ft14 ft7 ft 9 in78 in4411.1
T3744 ft8 ft1 ft 11 in36 in14.53.5
T3766 ft10 ft3 ft 10 in50 in21.55.7
T3788 ft12 ft5 ft 9 in64 in318.2

Designed for one or two person jobs. Note: When used as a double stepladder, the maximum load per side, including person and materials, shall not exceed the duty rating of ladder
Different types of ladders are designed to keep you safe and productive when climbing or standing. Using the wrong style of ladder or simply ignoring the limitations of climbing equipment can result in a fall or serious injury.
Height is referring to the actual ladder height. Extension ladders should be 7 to 10 feet longer than the highest support or contact point, which may be the wall or roof line. The highest standing level is four rungs down from the top. The highest permitted standing level on a stepladder is two steps down from the top.

Reach height is the maximum reach assuming a 5’6” person with a vertical 12” reach.
Ladders are designed to safely hold up to a specific amount of weight. The Werner Performance System defines five different capacities using a color and star rating system. The Duty Rating is defined as the maximum safe load capacity of the ladder. A person’s fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the load capacity.

Werner offers ladder made from fiberglass and aluminum. Each material has characteristics which make it best for certain applications, or one material may simply fit the personal preferences of the user. For example, if working around electricity users should select fiberglass products due to their non-conductive side rails.