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M Series Aluminum Folding Multiladder

>Series Callout
The M Series folding aluminum MultiLadder is designed for one or two person jobs. This Type IA ladder with a duty rating of 300 lbs, has a 3-position MULTI-LOK® Hinge that allows for 18 positions or applications. Includes slip-resistant, multi-directional rungs and feet. Includes 2 bases for scaffold position.


  • Locking hinge enables multiple ladder styles
  • Telescoping design for multiple working heights

Performance Overview

StyleSizeExtension HeightNumber of Positions
Folding MultiLadder6 ft -- 8 ft12 ft -- 16 ft18


Rails DimensionFlange DimensionRungs Dimension
2-1/2 in1 in1-1/4 in


Model No.Approx. Closed HeightScaffold HeightStepladder HeightSizeExtension HeightApprox. Cu. Ft. Per UnitBuy Online
M1A-6-12B40-5/8 in3 ft6 ft6 ft12 ft4
M1A-8-16B52-5/8 in4 ft8 ft8 ft16 ft5.2

Set-up of some positions requires additional equipment, not included 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.