1. Introduction
Thank you for choosing the SMARTSTANDARD 40in x 84in Bifold Barn Door. This manual provides detailed instructions for the safe and proper installation, operation, and maintenance of your new door. Please read this manual thoroughly before beginning installation and retain it for future reference.
2. Product Features
- Space-Saving Design: This bifold barn door effectively saves 50% of the space compared to traditional barn door hardware. It is versatile for various living spaces, including laundry rooms, closets, pantries, studies, living rooms, kitchens, and bedrooms.
- Easy Installation: The 40x48 barn door is pre-drilled and ready for installation. The package includes all necessary tools and detailed instructions to ensure ease of assembly.
- Frosted Tempered Glass: The barn doors feature high-quality frosted tempered glass, providing privacy while maintaining aesthetic appeal.
- Durable Hardware: The included barn door hardware kit is crafted from sturdy iron material, ensuring long-term use and durability.
- Waterproof PVC Surface: The solid barn door slabs are covered with a water-proof PVC surface for enhanced durability and easy cleaning.
3. Package Contents
Before beginning installation, please verify that all components listed below are present and undamaged. If any parts are missing or damaged, please contact SMARTSTANDARD customer support.

Figure 3.1: Complete accessories and packing list.
The package includes: 2 Finished Glass Bifold Barn Doors (20''x84''), 3.65FT Track Kit, Handle, 1 Set barn door hardware kit & Sleeve, Butt Hinges (x3), Anti-collision strip, and all hardware for the assembly process. Specifically, you will find the Bottom Pivot Plate & Sleeve, Pulley Base, Wall Spacer Kit (x3), Pulley, Assembled door, Bi-Fold Door Butt Hinges (x3), Handle, Professional Manual, and Rail and Wall Spacer.
4. Safety Information
- Always wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation.
- Ensure the wall structure is capable of supporting the weight of the door and hardware. Consult a professional if unsure.
- Use a stud finder to locate wall studs for secure mounting of the track.
- Keep children and pets away from the installation area.
- Exercise caution when handling glass panels to prevent breakage and injury.
- Do not modify the door or hardware components, as this may compromise safety and void the warranty.
5. Setup and Installation
The SMARTSTANDARD Bifold Barn Door is designed for straightforward installation. Follow these steps carefully for optimal performance and safety.
5.1. Pre-Installation Checks
- Verify door opening dimensions. The product dimensions are 40" (20"x2) x 84" with a 44" track kit. The track length should be door opening size + 4".
- Ensure at least 6" clearance is available from the top of the door opening to the ceiling for track installation.
- Confirm that the wall where the track will be mounted is structurally sound and can support the door's weight (approximately 102.3 pounds for the 40"x84" model).

Figure 5.1: Product dimensions and clearance requirements.
This diagram illustrates the critical measurements for installation, including the minimum distance from the rail hole to the ceiling (6 inches) and the door height (84 inches). It also provides a table with different size choices, corresponding panel sizes, door numbers, fit opening widths, track lengths, and weights.
5.2. Assembly and Mounting
The glass doors are finished products that are assembled, requiring no long assembly time. Installation can be completed in as little as 30 minutes.

Figure 5.2: Assembly overview.
The image highlights that the door comes pre-assembled, significantly reducing installation time. The main components like the bottom pivot plate, door knob, and 360-degree free rotation mechanism are designed for direct mounting.

Figure 5.3: Exquisite product detail drawings.
This image provides close-up views of key hardware components: the 360° Free Rotation mechanism for smooth operation, the design of the door knob, and the Bottom Pivot Plate for secure floor mounting.
- Prepare the Opening: Ensure the door opening is clean, level, and meets the required dimensions.
- Install the Track: Mount the track securely to the wall studs above the door opening. Use the provided wall spacers and hardware.
- Attach Pulleys to Doors: The doors come pre-assembled. Attach the pulley mechanisms to the top of the door panels as per the detailed manual.
- Hang the Doors: Carefully lift and hang the door panels onto the track. Ensure the pulleys are properly seated.
- Install Bottom Pivot Plate: Secure the bottom pivot plate to the floor, aligning it with the door's movement path.
- Attach Handle: Install the handle to the door panel.
- Adjust and Test: Adjust the door for smooth operation. Test the bifold action to ensure it opens and closes freely without obstruction.
Refer to the included "Professional Manual" for step-by-step diagrams and specific hardware installation details.
6. Operating Instructions
Your SMARTSTANDARD Bifold Barn Door is designed for smooth and quiet operation. To open the door, gently pull the handle, allowing the panels to fold inward and slide along the track. To close, push the panels back into place until they are fully extended and aligned. The quiet glide technology ensures minimal noise during operation.

Figure 6.1: Bifold barn door in an open position.
This image demonstrates the bifold barn door in a partially open state, showcasing its space-saving functionality and how it folds to reveal the adjacent room.

Figure 6.2: Bifold barn door in a closed position.
This image shows the bifold barn door fully closed, highlighting its clean lines and how it provides privacy with its frosted glass panels.

Figure 6.3: Key product features.
This infographic visually summarizes the main benefits and characteristics of the door, including its frosted glass for privacy, ease of cleaning, scratch resistance, waterproof properties, and space-saving design.
7. Maintenance
Regular maintenance will ensure the longevity and smooth operation of your bifold barn door.
- Cleaning: Wipe down the door panels and glass surfaces with a soft, damp cloth and mild detergent. Avoid abrasive cleaners that could scratch the PVC surface or glass.
- Track and Rollers: Periodically inspect the track for any debris or obstructions. Clean the track and rollers to ensure smooth gliding. A silicone-based lubricant can be applied to the track if needed, but avoid oil-based lubricants which can attract dust.
- Hardware: Check all screws and fasteners for tightness. Tighten any loose connections to prevent wobbling or misalignment.
- Hinges: Ensure the butt hinges operate smoothly. If they squeak, a small amount of lubricant can be applied.
8. Troubleshooting
If you encounter any issues with your SMARTSTANDARD Bifold Barn Door, refer to the following common troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Door sticks or is difficult to slide. | Debris in track, loose rollers, misaligned track. | Clean track, tighten roller screws, check track alignment and adjust if necessary. |
| Door panels do not align properly when closed. | Misaligned hinges, uneven floor, incorrect pivot plate placement. | Adjust hinges, ensure floor is level, re-position bottom pivot plate if needed. |
| Excessive noise during operation. | Dry rollers, loose hardware. | Lubricate rollers with silicone spray, tighten all hardware connections. |
| Door feels wobbly. | Loose track mounting, loose panel connections. | Ensure track is securely fastened to wall studs. Check and tighten all screws connecting door panels and hardware. |
If the problem persists after attempting these solutions, please contact SMARTSTANDARD customer support for further assistance.
9. Specifications
- Brand: SMARTSTANDARD
- Model Number: BDM-20G3B2-JFKJ-WH
- Size: 40"(20"x2) x 84" + 44" Track Kit
- Product Dimensions: 1.38 x 20 x 84 inches (per panel)
- Item Weight: 102.3 pounds
- Material: MDF with Frosted Glass, PVC Surface
- Color: White
- Style: Modern
- Assembly Required: No (pre-assembled panels)
- Included Components: Track, Handle, Hardware Kit, Hinges, Anti-collision strip, Manual
10. Warranty and Support
SMARTSTANDARD stands behind the quality of its products. For specific warranty details, please refer to the warranty card included with your purchase or visit the official SMARTSTANDARD website. If you require technical assistance, replacement parts, or have any questions not covered in this manual, please contact SMARTSTANDARD customer support:
- Customer Service: Refer to your purchase documentation or the SMARTSTANDARD website for contact information.
- Online Resources: Visit the SMARTSTANDARD Store on Amazon for additional product information and support.