350 lb. load rating.
- Both the steps and the top step are 16″ or 24″ wide. The steps are 7″ deep. The top step is 14″ deep.
- All ladders are provided with 2″ spring-loaded casters.
- Unpainted, aluminum finish.
- Series “A” aluminum ladders meet applicable OSHA and ANSI standards.
- CAL-OSHA models also available.
- All tube members are 1” aluminum tube construction.
- All welded construction.
- Brightened aluminum finish.
8 stairway tread support welds per step, for a stronger, longer lasting, and safer ladder.
Multiple Tread OPTIONS
Cotterman® offers a variety of tread types to suit your needs. So, no matter what environment your ladder will be in, we have a tread that will offer the optimal grip.
Solid aluminum step with non slip, ribbed surface.
Cotterman® offers various tread widths to accommodate almost any situation. So, it is up to you, the user, to determine how and where the ladder will be most commonly used. Our treads vary in widths from 16″ to 30″ to allow for space, storage and usage constraints or requirements.
16″ Tread Width
Open step Premium Serrated Tread.
24″ Tread Width
Open step design prevents debris buildup.
On The Ground
Multi-Directional Mobility. Allows 360° mobility. 1-4 step ladders have spring-loaded casters that retract whenever weight is applied.
First Thing’s First
First, we need to determine what size ladder you need. One of the most common mistakes made in ordering many ladders is getting them too large for the available workspace. Here are some things to consider before ordering your new ladder:
A: Working Height
is the approximate height that you would like to be able to comfortably reach. It is usually calculated at 5.5′ above the ladder’s platform height.
B: Overall Height
is VERY important. You want to be sure that your ladder will not be too tall to fit into your workspace. This includes being able to fit through any doors that you may need to move it through, or under any ceilings or fixtures that you may have.
C: Top Step Height
is the measurement of the top step from the ground. It’s important that this measurement is not too far above or below your desired working height.
D: Base Width
is also very important because as ladders get taller, the base width increases. It is important to be sure that the ladder will not be too wide for your workspace. We offer different tread widths to accommodate most work areas.
E: Base Length
is the measurement of how long the base of the ladder runs. This is dependent upon the height of the ladder. The taller the ladder, the longer the base. Also lower climb angles increase base length.
*Options such as deeper top steps are available, and will increase the base length. Top steps are available in 10″ – 12″(standard), 20″ – 24″, and 30″.
|Description||Top Step Height||Overall Height||Working Height||Short Part Number|
|1 Step Aluminum Rolling Metal Ladder||12||12||78||A1N|
|2 Step Aluminum Rolling Metal Ladder||20||20||86||A2N|
|2 Step Aluminum Rolling Metal Ladder||20||50||86||A2R|
|3 Step Aluminum Rolling Metal Ladder||30||30||96||A3N|
|3 Step Aluminum Rolling Metal Ladder||30||60||96||A3R|
|4 Step Aluminum Rolling Metal Ladder||40||40||106||A4N|
|4 Step Aluminum Rolling Metal Ladder||40||70||106||A4R|
|5 Step Aluminum Rolling Metal Ladder||50||80||116||A5R|
|6 Step Aluminum Rolling Metal Ladder||60||90||126||A6R|
|7 Step Aluminum Rolling Metal Ladder||70||100||136||A7R|
|8 Step Aluminum Rolling Metal Ladder||80||110||146||A8R|