Introduction
This manual provides essential information for the safe and effective use of your Cosco 3-Step Steel Step Stool, Model 11-402-CLGG2. This household-duty step stool is designed to provide a stable platform for reaching elevated areas. Please read all instructions carefully before assembly and use to ensure safety and product longevity.
Safety Information
Your safety is paramount. Adhere to the following guidelines:
- Maximum Load Capacity: Do not exceed the maximum load capacity of 200 pounds (90.7 kg).
- Stable Surface: Always place the step stool on a firm, level, and non-slippery surface.
- Proper Footing: Ensure all four legs are fully extended and stable before stepping onto the stool.
- Center Weight: Stand in the center of the steps. Do not lean too far to one side or overreach.
- Top Step Usage: Do not stand on the top step unless it is explicitly designed for standing and you can maintain three points of contact (two feet and one hand, or one foot and two hands).
- Footwear: Wear appropriate, non-slip footwear when using the step stool.
- Children: Keep children away from the step stool unless under direct adult supervision.
- Inspection: Before each use, inspect the step stool for any damage, loose parts, or wear. Do not use if damaged.
- Folding/Unfolding: Exercise caution when folding or unfolding to avoid pinching fingers or hands.
Setup
The Cosco 3-Step Steel Step Stool is designed for quick and easy deployment from its compact folded state.
- Unfolding: Hold the top of the step stool with one hand and the bottom of the rear leg support with the other. Gently pull the rear leg support away from the main frame until the stool fully extends and locks into place. You should hear or feel a click indicating the self-locking mechanism has engaged.
- Stability Check: Before use, gently push down on the top step and rock the stool slightly to ensure it is stable and all legs are firmly on the ground.

Image: The Cosco 3-Step Steel Step Stool shown in its fully unfolded and ready-to-use position. The gray steel frame and large, ribbed polypropylene steps are visible, along with the continuous rear leg support.
Operating Instructions
Follow these steps for safe operation:
- Placement: Position the step stool directly in front of the area you need to reach. Ensure there is adequate clearance around the stool.
- Ascending: Step onto the lowest step first, ensuring your foot is fully on the step. Maintain balance by holding onto a stable object if available. Proceed to the next step, always keeping your body centered.
- Working Position: Once at the desired height, maintain three points of contact (e.g., two feet and one hand on a stable surface, or both feet on the step and both hands free for light tasks). Avoid overreaching.
- Descending: Carefully descend one step at a time, facing the step stool. Ensure each foot is firmly placed before moving the other.
- Folding for Storage: To fold, locate the release mechanism (often a handle or lever) usually found under the top step or on the side. Engage the mechanism and gently push the rear leg support towards the main frame until the stool folds flat. Ensure the self-locking feature engages for compact storage.
Maintenance
Regular maintenance ensures the longevity and safe operation of your step stool.
- Cleaning: Wipe down the steel frame and polypropylene steps with a damp cloth and mild detergent. Avoid abrasive cleaners that could damage the finish or step surfaces.
- Inspection: Periodically check all joints, rivets, and non-slip tips for tightness and wear. Replace any worn or damaged parts immediately.
- Storage: Store the step stool in a dry place, away from extreme temperatures and direct sunlight, to prevent material degradation. Store in its folded, compact position.
Troubleshooting
If you encounter issues with your step stool, consider the following:
- Stool feels wobbly: Ensure the stool is on a completely flat and stable surface. Check that the rear leg support is fully extended and locked into place. Inspect for any bent or damaged legs.
- Difficulty folding/unfolding: Ensure the release mechanism is fully engaged. Check for any obstructions or debris in the folding joints. Do not force the mechanism.
- Non-slip tips are worn: Worn non-slip tips can reduce stability. Contact customer support for replacement parts if available.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 11-402-CLGG2 |
| Material | Steel frame, Polypropylene resin steps |
| Color | Cool Gray |
| Load Capacity | 200 lbs (90.7 kg) |
| Number of Steps | 3 |
| Special Feature | Heavy Duty, Compact Flat Fold, Self-Locking, Ribbed Non-Slip Rungs, Non-Slip Tips |
| Country of Origin | China |
| UPC | 044681119361 |
| ASIN | B002YCGQJ6 |
Warranty Information
This Cosco 3-Step Steel Step Stool comes with a 10-year limited warranty. This warranty covers defects in materials and workmanship under normal household use. For specific terms, conditions, and claim procedures, please refer to the warranty documentation included with your purchase or contact Cosco customer support.
Customer Support
For further assistance, questions, or to inquire about replacement parts, please contact Cosco Home & Office Products customer support. Refer to the contact information provided on the product packaging or the official Cosco website.





