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P370 Series Aluminum Platform Step Ladders

>Series Callout
The P370 series aluminum platform ladders have a duty rating of 300 pounds and feature a safety guard rail to encourage proper use. The large platform provides a secure and comfortable work area. The slip-resistant TRACTION-TRED® steps are double riveted. A full set of rear horizontals are spaced one foot apart. The heavy duty aluminum foot bracket secures the slip-resistant foot pad and protects the bottom of the rail.


  • Aluminum top
  • Designed for one person jobs
  • Full set of rear horizontals
  • Knee-braced top & bottom steps and horizontals
  • Platform for comfortable work area
  • Safety Guard Rail
  • Slip-resistant foot pad
  • Slip-resistant Traction-Tred steps

Performance Overview

StyleSizeReach HeightLoad Capacity
Platform2 ft -- 8 ft8 ft -- 14 ft300 lbs


Front Rails DimensionFront Flange DimensionRear Rails DimensionRear Flange DimensionSteps Dimension
3 in7/8 in1-1/4 in1 in3 in


Model No.SizeHeight to PlatformReach HeightMax. Standing HeightApprox. Product WidthApprox. SpreadBuy Online
P3722 ft2 ft8 ft1 ft 11 in21.24 in30 in
P3733 ft3 ft9 ft2 ft 10 in23 in36-1/4 in
P3744 ft4 ft10 ft3 ft 10 in24.72 in42-3/4 in
P3766 ft6 ft12 ft5 ft 9 in28.25 in54-3/4 in
P3788 ft8 ft14 ft7 ft 8 in31.68 in67 in

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.