A double bypass barn door kit lets two doors slide past one another, which can help when a swinging door would take up too much room. The key choice is the track design: a true double-track kit lets the doors move independently without the overlap space common to single-track systems, while single-track kits can be a more compact option if your door widths account for that overlap.
Our picks include both designs, with options for different opening sizes, door thicknesses, and weight limits. Check the track layout and the kit’s fit requirements against your doorway before choosing; the doors themselves are not included with these kits.
Table of Contents
Quick Comparison
| Product | Track style | Key fit details | Notable feature |
|---|---|---|---|
| ZEKOO 8FT Double Track Bypass Kit | Double track | Door thickness: 1⅜–1¾ in. | Doors slide independently without single-track overlap |
| SMARTSTANDARD 6.8 Feet Bypass Kit | Single track | 220-lb weight limit; door thickness: 1⅜–1¾ in. | Specifies an 8–12 in. overlap space |
| AONAYIOA 6FT Bypass Kit | Single track | 330-lb weight capacity; door width up to 36 in.; thickness: 1.18–1.57 in. | Lists a 6.7-in. overlap space |
| EaseLife 8FT Single Track Bypass Kit | Single track | 220-lb weight capacity; door thickness: 1⅜–1¾ in. | Aluminum alloy track |
| ZEKOO 6FT Single Track Bypass Kit | Single track | 230-lb door capacity | Designed to need 6 in. of ceiling space above the door |
Our Picks: Best Double Bypass Barn Door Kit reviews
1. ZEKOO 8FT Double Track Bypass Kit: Best for Independent Door Movement
This ZEKOO kit stands apart from the other picks because it uses two tracks instead of hanging both doors on one track. The doors can slide independently, and the design avoids the overlap space that single-track bypass kits need. That can make it easier to cover an opening when you do not want to compensate for one door sitting in front of the other.
The kit is made from solid carbon steel with a black powder-coated finish. It is listed for doors 1⅜ to 1¾ inches thick and includes rails, rollers, brackets, stoppers, anti-jump pads, floor guides, spacers, and lag bolts. The supplied information does not give a door weight capacity, so confirm the product’s current specifications and your door weight before buying.
This is a strong layout choice for a wider opening or for anyone who values separate door movement. The trade-off is that a double-track arrangement needs more room for its track setup than a single-track design. The Amazon listing supplied for this product is marked unavailable, so check whether it can be purchased before planning around it.
Pros:
- Two tracks allow the doors to slide independently.
- Avoids the overlap space required by single-track systems.
- Includes hardware for two doors, including floor guides and anti-jump pads.
- Powder-coated solid carbon steel construction.
Cons:
- The supplied product data does not state a door weight limit.
- The listing is marked unavailable in the provided product information.
Verdict: Choose this kit if you want a true double-track layout with independent door movement, but verify availability and weight compatibility first.
2. SMARTSTANDARD 6.8 Feet Single-Track Kit: Best for a Defined Overlap Layout
This SMARTSTANDARD kit hangs both doors from a single track. That arrangement is different from the ZEKOO double-track pick: the doors share a track and create an overlap space of about 8 to 12 inches. The product information advises that each door panel must be wider than half of the opening plus the overlap space, or the doors may not cover the opening fully.
The kit has a frosted black carbon steel finish and is rated for a maximum door weight of 220 pounds. It fits door panels from 1⅜ to 1¾ inches thick. The package list includes rail sections, connectors, hangers, wall spacers, a floor guide, stoppers, and a hex key. Doors are not included.
The overlap requirement is the main planning issue here. Measure the opening and door panels before ordering rather than assuming that two doors sized to the opening will provide full coverage. Compared with a double-track kit, this single-track layout may suit shoppers who want the shared-track design, but it will not eliminate overlap.
Pros:
- Clear guidance on the overlap space and door-width requirement.
- Listed for doors up to 220 pounds.
- Fits common door thicknesses from 1⅜ to 1¾ inches.
- Includes wall spacers, a floor guide, and basic installation hardware.
Cons:
- The 8–12-inch overlap can affect how much of the opening the doors cover.
- Door panels are not included.
Verdict: This is a practical single-track option if your measurements account for the stated overlap and your doors meet the thickness and weight limits.
3. AONAYIOA 6FT Combination-Track Kit: Best for a Higher Listed Weight Capacity
The AONAYIOA kit uses a single-track bypass setup with a combination-track design. Its listed overlap is 6.7 inches. The product information warns that the door panels should be wider than the opening; if they are not, the rollers may meet as one door moves and pull the other door along.
This kit is made from steel with a black powder coating and is listed with a 330-pound door weight capacity. It fits doors up to 36 inches wide and from 1.18 to 1.57 inches thick. Those thickness limits are narrower than the 1⅜-to-1¾-inch range listed for several other kits here, so measure carefully before choosing it.
The 330-pound capacity is the highest listed among these picks, but it does not remove the need to follow the maker’s installation directions and check your specific door dimensions. Its 6-foot track makes it a more compact listed option than the 8-foot systems, while the overlap means it still needs door widths planned around a single-track arrangement.
Pros:
- Highest stated weight capacity among the five kits.
- Lists a 6.7-inch overlap to help with planning.
- Includes a floor guide, stoppers, anti-jump discs, and installation instructions.
- Steel track with a black powder-coated finish.
Cons:
- Its listed door thickness range is narrower than several alternatives.
- Door panels must be sized with the overlap and roller clearance in mind.
Verdict: Consider this kit when its 330-pound capacity suits your doors and your panels fit the stated width and thickness limits.
4. EaseLife 8FT Single-Track Kit: Best for a Longer Aluminum Alloy Track
EaseLife’s bypass kit uses one track for two doors and is listed with an aluminum alloy track and ball-bearing rollers. Its 8-foot format gives you a longer listed track option than the 6-foot kits, though you still need to check the track length against your opening and door arrangement.
The kit is rated for a 220-pound door weight capacity and fits doors from 1⅜ to 1¾ inches thick. The package includes two 4-foot rails, four rollers, rail spacers, door stoppers, and floor guides. The product description also states that it fits double doors up to 53 inches wide, but confirm how that measurement applies to your setup before ordering.
As with other single-track kits, the doors share a track rather than moving on separate tracks. That makes door sizing and clearance important. The aluminum alloy construction also distinguishes it from the carbon steel options in this group, so shoppers who specifically want a steel track may prefer another pick.
Pros:
- 8-foot track system for openings that need more track length.
- Aluminum alloy track with ball-bearing rollers.
- Fits doors 1⅜ to 1¾ inches thick.
- Includes two floor guides and two door stoppers.
Cons:
- Single-track design requires planning for the doors to share track space.
- The listed weight capacity is 220 pounds.
Verdict: Pick the EaseLife kit if you need an 8-foot single-track system and its aluminum alloy construction, fit limits, and weight capacity match your project.
5. ZEKOO 6FT Single-Track Kit: Best for Limited Ceiling Clearance
This ZEKOO kit is a compact single-track option designed for spaces with limited clearance above the doors. The product description says it needs 6 inches of ceiling space from the top of the door to the ceiling. That stated clearance is useful when a taller track arrangement may not fit, but measure your own room and compare it with the full installation instructions.
The track is made from solid carbon steel with a black coating, and the rollers use nylon-covered wheels. The kit is listed for doors up to 230 pounds. It includes two 3-foot rails, four rollers, spacers, stoppers, anti-jump pads, and two floor guides. The supplied details do not state a door-thickness range, so confirm compatibility with your door before purchasing.
Its 6-foot track and low-ceiling design make it a focused choice rather than an all-purpose pick. Like the other single-track options, it needs room for the doors to pass and overlap. The included step-by-step manual may help with setup, but mounting and door alignment still require careful measuring.
Pros:
- Designed for 6 inches of clearance above the door.
- Lists a 230-pound door capacity.
- Includes anti-jump pads and two floor guides.
- Solid carbon steel track with a black finish.
Cons:
- The product information does not state a door-thickness range.
- The single-track layout requires space for door overlap.
Verdict: Choose this ZEKOO kit if ceiling clearance is your main concern, after confirming that your doors fit its specifications and single-track layout.
How to Choose a Double Bypass Barn Door Kit
Decide Between Double-Track and Single-Track Design
A double-track kit gives each door its own track, allowing the doors to move independently without the overlap space described for single-track systems. A single-track kit hangs both doors on one track and requires them to pass one another, so the doors need enough width to cover the opening despite the overlap. Choose based on your available wall and ceiling space, as well as how much opening coverage you need.
Measure the Opening and Door Panels
Measure the opening width, the height available above it, and the width of each door panel. Compare those measurements with the kit’s track length and any stated overlap. For example, the SMARTSTANDARD listing calls for an 8–12-inch overlap, while the AONAYIOA listing specifies 6.7 inches. A door arrangement that does not account for overlap may leave part of the opening uncovered or cause the rollers to interfere.
Check Door Thickness and Weight
Door thickness limits differ among these kits. Several accept doors from 1⅜ to 1¾ inches thick, while the AONAYIOA kit lists a narrower range of 1.18 to 1.57 inches. Weight limits also vary: the supplied specifications list capacities from 220 to 330 pounds for four of the options. The ZEKOO 8-foot double-track listing does not give a capacity in the supplied information, so check its current product details if considering it.
Account for Ceiling and Wall Clearance
Measure the space above the doorway and the wall area where the doors will slide. The 6-foot ZEKOO single-track kit states that it needs 6 inches between the top of the door and the ceiling. Track layout can affect the space needed, too: a double-track arrangement avoids the single-track overlap but uses a different mounting setup. Follow the maker’s measurements and installation instructions rather than relying on the product title alone.
Review the Included Hardware and Mounting Plan
Compare what each package includes, such as rails, brackets, spacers, stoppers, floor guides, and anti-jump parts. A complete-looking kit still needs to suit your wall and door setup. Check the installation instructions for mounting requirements and make sure the mounting surface can support the door and hardware. If you are unsure about the wall structure or the mounting method, get qualified help before installation.
Consider the Track Material and Finish
The listed materials include carbon steel and aluminum alloy, with black finishes on the described options. Material alone does not establish whether a kit is right for your project; also weigh the capacity, dimensions, included parts, and track design. If the finish matters to your room, check the product images and current listing details for the exact appearance.
Frequently Asked Questions
What is a double bypass barn door kit?
It is hardware for two sliding doors that move past one another to cover or uncover an opening. Some kits use two separate tracks so each door can move independently. Others use one track, which creates an overlap between the doors.
Is a double-track kit better than a single-track kit?
Neither design is best for every room. A double-track system avoids the overlap space associated with single-track kits, while a single-track design may suit a layout where the doors can overlap and their widths are sized accordingly. Compare the mounting space and coverage you need before deciding.
How much overlap do single-track kits need?
It depends on the kit. The SMARTSTANDARD product information lists an overlap of 8 to 12 inches, while the AONAYIOA listing gives 6.7 inches. Use the specific kit’s instructions and measurements when sizing your doors.
Do these kits include the doors?
No. The product descriptions identify the hardware as a kit and state that doors are not included. You need to source compatible door panels separately.
How do I know if my doors are too heavy?
Compare each door’s weight with the capacity stated by the manufacturer for the kit. The supplied information lists limits of 220 pounds for SMARTSTANDARD and EaseLife, 330 pounds for AONAYIOA, and 230 pounds for the ZEKOO 6-foot single-track kit. The supplied details do not state a weight limit for the ZEKOO 8-foot double-track kit.
What should I check before installing the hardware?
Confirm the door thickness and weight, track length, overlap, ceiling clearance, and package contents. Read the installation instructions and verify that the wall and mounting method are suitable for the door and hardware. Careful measurements before drilling can help avoid fit problems.
Final Recommendation
The ZEKOO 8-foot double-track kit is the clearest choice if you want two doors to move independently without single-track overlap, though its supplied listing is marked unavailable and does not state a weight limit. For a single-track setup, compare the overlap and door dimensions closely: SMARTSTANDARD gives explicit overlap guidance, AONAYIOA lists the highest capacity, EaseLife offers an 8-foot aluminum alloy track, and the 6-foot ZEKOO kit is designed for limited ceiling clearance. Match the hardware to your measurements, door weight, and mounting conditions before ordering.
