1. Safety Information
Please read and understand all instructions and warnings before assembling and using this bunk bed. Keep this manual for future reference.
- Maximum Weight Capacity: Top bed: 150 lbs. Under bed (Full): 200 lbs. Trundle bed: 200 lbs. Do not exceed these limits.
- Age Restriction: The top bunk is not suitable for children under 6 years of age.
- Guard Rails: Always use the guard rails on the top bunk. Ensure they are properly installed and secured.
- Mattress Size: Use only mattresses that meet the specified dimensions. For the top bed, the recommended mattress thickness is 6 inches. For the under bed and trundle bed, the recommended mattress thickness is 6-8 inches.
- No Jumping: Do not allow jumping on the bed.
- Assembly: Ensure all connections are tight and secure before use. Periodically check and re-tighten hardware.
- Ventilation: Ensure adequate ventilation around the bed.
- Proposition 65 Warning: This product can expose you to chemicals including wood dust, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
2. Product Overview
The Merax Twin-Over-Full Stairway Bunk Bed with Trundle is a versatile 3-in-1 furniture piece designed for space efficiency and functionality. It features a twin-size top bunk, a full-size bottom bunk, and a pull-out trundle bed. The integrated stairway includes built-in storage shelves, enhancing organization. Crafted from high-quality pine wood and MDF, this bed offers durability and a modern aesthetic. The bunk bed can also be separated into two individual beds (one twin and one full) and a standalone trundle bed.
Key Features:
- 3-in-1 Design: Twin-over-Full bunk bed with an additional trundle bed.
- Integrated Storage: Stairway features four built-in storage shelves.
- Convertible: Can be separated into one twin bed, one full bed, and a trundle bed.
- Sturdy Construction: Made from high-quality pine wood and MDF.
- Safety Features: Includes guard rails for the top bunk and solid stairs for access.
Product Dimensions:

Image: Detailed dimensions of the Merax Twin-Over-Full Stairway Bunk Bed with Trundle, showing measurements for each component including the top bunk, bottom bunk, trundle, and stairway storage.
3. Setup and Assembly
Assembly of the Merax Twin-Over-Full Stairway Bunk Bed requires careful attention to detail. It is recommended to have at least two adults for assembly. Please ensure all parts are present and undamaged before beginning. Follow the included step-by-step instructions provided in the packaging. Do not discard packaging until assembly is complete and satisfactory.
Before You Begin:
- Unpack: Carefully unpack all components and hardware.
- Identify Parts: Lay out all parts and identify them using the parts list in your assembly guide.
- Tools Required: Typically, a Phillips head screwdriver and an Allen wrench (often included) are needed. Power tools are not recommended for initial tightening to prevent overtightening and damage.
- Clear Area: Assemble the bed in a spacious, clear area to avoid damage to the product or surrounding furniture.
Assembly Tips:
- Follow Instructions: Adhere strictly to the numbered steps in the provided assembly manual.
- Do Not Overtighten: Tighten screws and bolts firmly, but avoid overtightening, which can strip threads or crack wood.
- Check Alignment: Ensure all pieces are correctly aligned before fully tightening fasteners. Some users have reported issues with pre-drilled holes; if this occurs, contact customer support.
- Stairway Assembly: Pay close attention to the orientation of stairway components to ensure correct and safe assembly.

Image: A fully assembled Merax Twin-Over-Full Stairway Bunk Bed with Trundle in a grey finish, featuring a twin top bunk, full bottom bunk, pull-out trundle, and integrated stairway with storage shelves.
4. Operating Instructions
Using the Bunk Bed Configuration:
- Accessing the Top Bunk: Use the integrated stairway. Ensure a firm grip on the handrails.
- Trundle Bed: The trundle bed is designed to slide out from under the full-size bed. Gently pull the trundle frame outwards until fully extended. Push it back in when not in use to save space.
- Storage Shelves: The shelves integrated into the stairway can be used to store books, toys, or other small items. Do not overload shelves.

Image: A close-up view of the integrated stairway and storage shelves of the Merax bunk bed, highlighting the functional design.
Separating the Beds:
This bunk bed can be converted into two separate beds (one twin and one full) and a standalone trundle bed. This process requires disassembling the bunk bed structure. Refer to your original assembly manual for detailed instructions on how to safely separate the components. Ensure all connecting hardware is removed and stored properly if you plan to reassemble it as a bunk bed later.

Image: The Merax bunk bed disassembled into its individual components: a twin bed, a full bed, and a trundle bed, arranged separately in a room.
5. Maintenance
Regular maintenance will help prolong the life and ensure the safety of your Merax bunk bed.
- Cleaning: Wipe surfaces with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners that could damage the finish.
- Hardware Check: Periodically (e.g., every 3-6 months) inspect all bolts, screws, and connections to ensure they are tight. Re-tighten if necessary. Loose hardware can compromise the bed's stability and safety.
- Slats: Ensure bed slats are securely in place and undamaged. Replace any broken or cracked slats immediately.
- Avoid Excessive Moisture: Protect the wood from prolonged exposure to moisture.
6. Troubleshooting
If you encounter issues with your Merax bunk bed, refer to the following common solutions:
- Bed Feels Unstable/Wobbly:
- Check all bolts and screws. Ensure they are fully tightened.
- Verify that all components are correctly assembled according to the manual.
- Parts Do Not Align During Assembly:
- Double-check the orientation of the parts. Some pieces may look similar but have specific front/back or left/right orientations.
- Loosen adjacent connections slightly to allow for adjustment, then re-tighten once aligned.
- If holes appear misdrilled or parts are defective, contact Merax customer support for assistance.
- Trundle Bed Does Not Slide Smoothly:
- Inspect the wheels for any obstructions or damage.
- Ensure the floor surface is clear and even.
- Slats Come Loose:
- Ensure the mattress is correctly sized and evenly distributed.
- Verify that the slats are properly seated in their supports.
- Avoid excessive weight or sudden impacts on the bed.
If these steps do not resolve the issue, please contact Merax customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Merax |
| Model Number | 295grey-POY |
| Size | Twin over Full with Trundle |
| Product Dimensions | 76.3"L x 61.7"W x 57.8"H |
| Color | Grey |
| Finish Type | Wood |
| Furniture Finish | Pine |
| Included Components | Bed frame, Trundle bed, Stairway with storage |
| Assembly Required | Yes |
| Item Weight | 189 pounds |
| Top Bed Weight Capacity | 150 lbs |
| Under Bed Weight Capacity | 200 lbs |
| Trundle Bed Weight Capacity | 200 lbs |
| Top Bed Recommended Mattress Thickness | 6 inches |
| Under Bed/Trundle Bed Recommended Mattress Thickness | 6-8 inches |
| UPC | 840130856982 |
| ASIN | B08426726B |
| Date First Available | September 1, 2020 |
8. Warranty and Support
Merax products are designed for quality and durability. While specific warranty details are not provided in this manual, please retain your proof of purchase for any warranty claims. For product support, missing parts, or to report any issues, please contact Merax customer service directly. You can typically find contact information on the Merax official website or through the retailer where the product was purchased.
For more information, visit the Merax Store on Amazon.