English [Español]
United States [Change]

P400 Series Aluminum Platform Step Ladders

>Series Callout
The P400 series aluminum platform ladders have a duty rating of 375 pounds and feature a safety guard rail to encourage proper use. The large platform provides a secure and comfortable work area, and the slip-resistant TRACTION-TRED® steps are double riveted and knee braced. A full set of rear horizontals are spaced one foot apart. The 10', 12 ft and 14 ft models have a duty rating of 300 pounds. These ladders are lightweight and easy to transport.


  • 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
Platform4 ft -- 14 ft10 ft -- 20 ft300 lbs -- 375 lbs


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


Model No.SizeHeight to PlatformReach HeightMax. Standing HeightLoad CapacityApprox. Product WidthBuy Online
P4044 ft4 ft10 ft3 ft 10 in375 lbs24.72 in
P4066 ft6 ft12 ft5 ft 9 in375 lbs28.25 in
P4088 ft8 ft14 ft7 ft 8 in375 lbs31.68 in
P41010 ft10 ft16 ft9 ft 7 in300 lbs35-1/4 in
P41212 ft12 ft18 ft11 ft 6 in300 lbs38.88 in
P41414 ft14 ft20 ft13 ft 5 in300 lbs42.36 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.