1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your WIN STELLAR 36x80 Frosted Glass Bifold Door. Please read this guide thoroughly before beginning installation to ensure proper setup and safe use. Keep this manual for future reference.
2. Safety Information
- Always wear appropriate safety gear, including gloves and eye protection, during installation.
- Ensure the door opening dimensions are correct before installation. Refer to the sizing chart.
- Handle glass panels with care to prevent breakage and injury.
- Keep small parts and hardware away from children to prevent choking hazards.
- If you encounter any difficulties or have questions, contact customer support.
3. Product Overview and Features
The WIN STELLAR bifold door is designed to maximize space and enhance the aesthetic of your interior. It features high-quality materials for durability and ease of maintenance.
Key Features:
- High-Quality Materials: Constructed with solid core panels covered with a water-resistance film, making them easy to clean and scratch-resistant.
- Tempered Frosted Glass: Features SGCC-certified tempered glass, which is approximately 8 times stronger than regular glass. The frosted finish adds brightness to the room while maintaining privacy.
- Durable MDF Surface: The door panels have a durable MDF surface that is pre-finished, sturdy, scratch-resistant, and water-resistant.
- Space-Saving Design: The bi-fold design is ideal for areas where traditional swinging doors are impractical, such as closets, pantries, storage rooms, and bathrooms.

Image: Detail of the frosted and tempered glass, highlighting its strength and privacy features.

Image: Illustration of the durable MDF surface, emphasizing its pre-finished, sturdy, scratch-resistant, and water-resistant properties.
4. Package Contents
Your WIN STELLAR bifold door package includes the following components:
- 2 x Door Panels (pre-assembled)
- 1 x Hardware Kit (includes track, pivots, hinges, knob, and fasteners)
- 1 x Matching Fascia (to conceal hardware)
- 1 x Detailed Instruction Manual (this document)
Please verify all parts are present and undamaged before beginning installation. If any parts are missing or damaged, please contact customer service.

Image: Visual representation of all hardware components included in the kit, such as track, pivots, hinges, door knob, and various screws.
5. Dimensions and Sizing
It is crucial to measure your door opening accurately to ensure a proper fit. This model is designed for a 36-inch wide opening.
Measuring Your Opening:
- Measure the width of your door opening at the top, middle, and bottom. Use the smallest measurement.
- Measure the height of your door opening from the finished floor to the top of the frame at three points. Use the smallest measurement.
- This door is suitable for openings ranging from 80-5/16 inches to 80-11/16 inches in height. The door panel height is 77.75 inches. The roller can be adjusted to increase height for openings up to 80.75 inches.

Image: Detailed size chart showing door panel width (A) and corresponding door opening width (B) for 24", 30", and 36" doors. Also includes door panel height (C) and door opening height (D) with notes on roller adjustment.

Image: Visual guide illustrating different bifold door sizes (24", 30", 36" wide single sets, and 48", 60", 72" wide double sets) all with a height of 77.69 inches.
6. Setup and Installation
The door panels are pre-assembled, and the hardware kit includes all necessary components for installation. A detailed instruction manual is included in your package. The following steps provide a general overview:
General Installation Steps:
- Prepare the Opening: Ensure the door opening is clean, plumb, and square.
- Install the Track: Secure the top track to the header of the door frame using the provided screws.
- Install Pivots: Attach the upper and lower pivot brackets to the door frame and floor/jamb according to the detailed manual.
- Attach Door Panels: Insert the top pivot pin into the track and the bottom pivot pin into the lower pivot bracket.
- Adjust and Align: Adjust the pivot pins and rollers to ensure the door hangs plumb and operates smoothly. For openings between 80.25-80.75 inches, adjust the roller to increase the door height.
- Install Door Knob: Attach the complimentary door knob to the door panel.
- Install Fascia: Secure the matching fascia to conceal the top track and hardware for a finished look.
Refer to the specific instruction manual included in your package for detailed diagrams and step-by-step guidance.
7. Operating Instructions
To operate your WIN STELLAR bifold door:
- Opening: Gently pull the door knob to fold the panels inward, allowing them to stack neatly to one side of the opening.
- Closing: Push the door panels back into place until they are fully extended and aligned within the door frame.
Ensure smooth operation by regularly checking the track and pivots for any obstructions or debris.

Image: A WIN STELLAR bifold door in a kitchen setting, shown in its fully open position, demonstrating its space-saving functionality.

Image: A visual representation of the bifold door before and after folding, illustrating how it folds up to 90% to create a more open space.
8. Maintenance
Proper maintenance will ensure the longevity and smooth operation of your bifold door.
- Cleaning: The water-resistance film and tempered glass are easy to clean. Use a soft, damp cloth with mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the finish or glass.
- Track and Hardware: Periodically inspect the top track, pivots, and hinges for any dust, debris, or signs of wear. Clean the track as needed to ensure smooth gliding. Lubricate moving parts with a silicone-based lubricant if they become stiff.
- Glass Care: The tempered glass is scratch-resistant, but avoid sharp objects that could potentially scratch or chip the surface.

Image: Demonstrates the easy-to-clean surface of the tempered frosted glass, resistant to fingerprints and scratches.

Image: A visual representation highlighting the scratch-resistant properties of the door surface, even against pet activity.
9. Troubleshooting
If you encounter any issues with your bifold door, refer to the common problems and solutions below:
| Problem | Possible Cause | Solution |
|---|---|---|
| Door does not close or open smoothly. | Track obstruction, misaligned pivots/rollers, dirty track. | Clean the track of any debris. Check pivot and roller alignment and adjust as needed. Lubricate the track and rollers. |
| Door panels are not aligned or plumb. | Incorrect pivot adjustment, uneven floor/header. | Adjust the upper and lower pivot pins to level and plumb the door. Ensure the door frame is square. |
| Door knob is loose. | Fastener needs tightening. | Tighten the screw securing the door knob. |
10. Specifications
| Attribute | Detail |
|---|---|
| Brand | WIN STELLAR |
| Model | 36x80 Frosted Glass Bifold Door |
| Material | Glass, Polyvinyl Chloride, MDF |
| Style | Classic |
| Item Weight | 60 Pounds |
| Product Dimensions | 0.83 x 35.45 x 77.75 inches (Door Panel) |
| Opening Size | 36'' x 80-80.75'' Opening |
| Assembly Required | No (Panels pre-assembled, hardware installation required) |
11. Warranty and Customer Support
WIN STELLAR is committed to providing quality products and dedicated customer service.
- Damaged or Missing Parts: If you receive a product with any damage or missing parts, please contact us promptly for assistance. We will be happy to replace them.
- Returns: This product is returnable until January 31, 2026. Please refer to your purchase details for specific return instructions.
- Contact Support: For any questions, concerns, or support needs, please visit the WIN STELLAR store on Amazon or use the 'Ask a question' feature on the product page.

Image: Guide on how to find order information and contact customer support for returns, exchanges, or inquiries.





