McMaster-Carr logo
    For Ladder Type
    For Ladder Type
    Extension
    Straight
    Step
    For Rail Material
    For Rail Material
    Fiberglass
    Aluminum
    Wood
    Adjustability
    Adjustability
    Adjustable
    Fixed
    Material
    Material
    Aluminum
    Steel
    Plastic
    For Capacity
    For Capacity
    250 lbs.
    300 lbs.
    375 lbs.
    Manufacturer/Brand
    Manufacturer/Brand
    Louisville
    Werner
    Manufacturer Model Number
    Manufacturer Model Number
    21-7
    21-8
    21-10
    PK130A
    PK130B
    PK130S
    PK136A
    PK136B
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Strap Length
    Strap Length
    4 ft.
    23 ft.
    Number of Shoes Included
    Number of Shoes Included
    2
    4
    Depth
    Depth
    12"
    13"-25"
    Adjustment Increments
    Adjustment Increments
    3/16"
    2"
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Manufacturer/Brand Model Number
    Manufacturer/Brand
    Model Number
    26-1
    26-2
    26-3
    26-5
    PK110A
    PK130L
    PK137
    Rail Width
    Rail Width
    7/8"
    1"-1 1/4"
    1 1/8"
    1 3/8"
    For Rail Depth
    For Rail Depth
    3"-3 1/4"
    3"
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    26 Products