A J Top Mount single track barn door hardware kit in a silver metallic finish, installed for a customer's bathroom.
A J Top Mount single track barn door hardware kit in a silver metallic finish, installed for a customer's bathroom.
Arch Bronze J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Raw Steel J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Black J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Blue Ribbon J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Bronze J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Flint Gray J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Copper Vein J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Dark Gray J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Jacobs Gold J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
PC Chrome J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Regal Red J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Matte Black J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Silver Vein J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Silver Metallic J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
White Bronze J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Rocket White J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
Rustic Brown J Strap Top Mount Heavy Duty Single Track Barn Door Hardware
An instructional diagram titled 'How to Calculate Single Door Track Length'. The primary formula shown is: Track Length = 2 x Door Width. Additional formulas are provided to determine door size: Door Width = Opening Width + (2 x Molding Width, or 4 inches if no molding). Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.
An instructional diagram showing a closed barn door and titled 'How to Calculate Single Door Track Length'. The primary formula is: Track Length = 2 x Door Width. Additional formulas for door size are: Door Width = Opening Width + (2 x Molding Width, or 4 inches if no molding). Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.
Instructional diagram: 'How to Calculate Double Door Biparting Track Length'. The main formula is: Track Length = 4 x Door Width. To find the size for each of the two doors, the formulas are: Door Width = [Opening Width + (2 x Molding Width, or 4 inches if no molding)] / 2. The Door Height formula is: Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.
Instructional diagram showing a pair of closed biparting doors, titled 'How to Calculate Double Door Biparting Track Length'. The main formula is: Track Length = 4 x Door Width. To find the size for each door, the formulas are: Door Width = [Opening Width + (2 x Molding Width, or 4 inches if no molding)] / 2. The Door Height formula is: Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.
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A J Top Mount single track barn door hardware kit in a silver metallic finish, installed for a customer's bathroom.A J Top Mount single track barn door hardware kit in a silver metallic finish, installed for a customer's bathroom.Arch Bronze J Strap Top Mount Heavy Duty Single Track Barn Door HardwareRaw Steel J Strap Top Mount Heavy Duty Single Track Barn Door HardwareBlack J Strap Top Mount Heavy Duty Single Track Barn Door HardwareBlue Ribbon J Strap Top Mount Heavy Duty Single Track Barn Door HardwareBronze J Strap Top Mount Heavy Duty Single Track Barn Door HardwareFlint Gray J Strap Top Mount Heavy Duty Single Track Barn Door HardwareCopper Vein J Strap Top Mount Heavy Duty Single Track Barn Door HardwareDark Gray J Strap Top Mount Heavy Duty Single Track Barn Door HardwareJacobs Gold J Strap Top Mount Heavy Duty Single Track Barn Door HardwarePC Chrome J Strap Top Mount Heavy Duty Single Track Barn Door HardwareRegal Red J Strap Top Mount Heavy Duty Single Track Barn Door HardwareMatte Black J Strap Top Mount Heavy Duty Single Track Barn Door HardwareSilver Vein J Strap Top Mount Heavy Duty Single Track Barn Door HardwareSilver Metallic J Strap Top Mount Heavy Duty Single Track Barn Door HardwareWhite Bronze J Strap Top Mount Heavy Duty Single Track Barn Door HardwareRocket White J Strap Top Mount Heavy Duty Single Track Barn Door HardwareRustic Brown J Strap Top Mount Heavy Duty Single Track Barn Door Hardware Heavy Duty Barn Door Hardware VideoAn instructional diagram titled 'How to Calculate Single Door Track Length'. The primary formula shown is: Track Length = 2 x Door Width. Additional formulas are provided to determine door size: Door Width = Opening Width + (2 x Molding Width, or 4 inches if no molding). Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.An instructional diagram showing a closed barn door and titled 'How to Calculate Single Door Track Length'. The primary formula is: Track Length = 2 x Door Width. Additional formulas for door size are: Door Width = Opening Width + (2 x Molding Width, or 4 inches if no molding). Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.Instructional diagram: 'How to Calculate Double Door Biparting Track Length'. The main formula is: Track Length = 4 x Door Width. To find the size for each of the two doors, the formulas are: Door Width = [Opening Width + (2 x Molding Width, or 4 inches if no molding)] / 2. The Door Height formula is: Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.Instructional diagram showing a pair of closed biparting doors, titled 'How to Calculate Double Door Biparting Track Length'. The main formula is: Track Length = 4 x Door Width. To find the size for each door, the formulas are: Door Width = [Opening Width + (2 x Molding Width, or 4 inches if no molding)] / 2. The Door Height formula is: Door Height = Opening Height + (Molding Height, or 2 inches if no molding) - 1/2 inch.

J Top Mount Heavy Duty Sliding Barn Door Hardware Kit

Goldberg Brothers
Starts at:
$329.00
Finish: Matte Black

Description

Confirm your fit

Specifications

What's in the kit

Complete your order

Choosing the right track length

Our Simple 3-Step Process

1) Select Your Hardware
Choose your finish, door thickness, track length, quantity, and optional add-ons
2) Custom Made
Each hardware kit is made to order in the U.S. and shipped in 10-15 days.
3) Install with Confidence
Your US made hardware is backed by a limited lifetime warranty.

Common Questions

The weight limit on top mount hardware comes from the mounting position, not the hardware size. When you mount to the top edge of the door, the screws holding the hanger are in tension — the threads are what hold the door's weight. Screws in tension are limited by the strength of those threads. Face-mounted hardware is different: those screws go through the door horizontally and are loaded in shear, which is a much stronger orientation for a fastener. Wider, heavier hardware doesn't change that fundamental constraint — which is why the capacity stays at 100 lbs regardless of whether this is the standard or heavy duty version.

Three reasons: your door is thicker than 1‑3/4 in (this kit handles up to 2-1/4 in where the standard tops out at 1‑3/4 in), you need a finish outside the four available on the standard duty line, or you want color-matched steel wheels. The standard J top mount ships with nylon wheels — the heavy duty version includes steel wheels that match your hardware finish. If none of those apply, the standard J top mount is the lower-cost option for the same result.

The track above the door and the track stops are visible. The hanger arm sits on top of the door edge — visible above the door, but not on the front face. From straight-on you see the door panel, the track, and the hanger arm above the door top. No straps on the door face.

Adding additional rollers can increase load capacity by distributing the weight across more mounting points. Email us at info@thebarndoorhardwarestore.com with your door weight and dimensions and we'll put together options and pricing.

If quiet operation matters for the space, yes. Delrin wheels are noticeably quieter than steel. The tradeoff: Delrin is only available in black, so upgrading swaps your color-matched steel wheels for black Delrin regardless of the hardware finish you've chosen. For most installs the wheel color isn't prominent, but worth confirming before you select.

Questions before you order?

Email us at info@thebarndoorhardwarestore.com with your door width, door weight, door thickness, and the finish you're after. If your door is over 100 lbs and you want the top mount look, mention that too — we'll work through the additional roller options with you. Available 7 days a week.

Email Us!

info@thebarndoorhardwarestore.com

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