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Make room for the right door.
Your opening, frame and swing all matter. Gather the measurements, then confirm the exact model before you order.
Masonite
Masonite 42 in. x 84 in. Z-Bar Knotty Alder Wood Interior Sliding Barn Door Slab with Hardware Kit
$398.00 USD
Price for the selected option. Shipping and taxes calculated at checkout.
SKU 47613
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What to measure before ordering
- Identify what you are replacing.
A slab is the door panel. A prehung unit includes a frame. Record whether you need a slab or a complete unit, and check exactly what the selected product includes.
- Measure the opening and the frame.
Record the width and height in several places, plus the wall or jamb depth. Keep rough-opening measurements separate from the existing door's dimensions. Include the units with every measurement.
- Confirm the swing and the exact model.
Note which side the hinges sit on, the side you are viewing from, and whether the door swings toward or away from you. Confirm handing terminology and required clearances against the manufacturer's documentation for the selected SKU.
These notes are a planning aid. Product names, photos and shared descriptions do not confirm fit. Check the selected SKU, manufacturer specifications and installer measurements before ordering.
Ask the Super Arbor teamProduct details
Catalog information may describe more than one option. Confirm the specifications for your selected SKU; the store's current shipping, returns and order terms apply.
42x84 Z-Bar Knotty Alder Interior Barn Door Kit
Transform any room with this solid-core Knotty Alder sliding barn door kit from Masonite. The unfinished Z-Bar design brings rustic warmth while the included black hardware and track deliver smooth, space-saving operation.
Key Features:
- Solid Core Construction: Durable, heavyweight feel for reduced sound transmission and long-term stability
- Knotty Alder Wood: Unfinished surface showcases natural grain and knots; stain or finish to match your decor
- Complete Hardware Kit: Includes black track, rollers, handle, fasteners and instructions for quick installation
- Space-Saving Slide: Glides along a track to free up floor space compared to swinging doors
- Versatile Fit: 42 in. W x 84 in. H slab; universal/reversible handing for multiple openings
Specifications Table:
| Specification | Details |
|---|---|
| Door Width | 42 in |
| Door Height | 84 in |
| Door Thickness | 1.38 in |
| Barn Door Pattern | Z |
| Panel Type | No Panel |
| Material | Wood (Knotty Alder) |
| Core Type | Solid Core |
| Color/Finish | Unfinished |
| Finish Type | Unfinished |
| Color Family | Light Brown |
| Texture Type | Textured |
| Door Handing | Universal/Reversible |
| Door Type | Barn Door Kit |
| Hardware Finish Family | Black |
| Included | Handle Set, Hardware, Instructions |
| Track Height | 85.75 in |
| Track Length | 6.98 ft |
| Product Weight | 90 lb |
| Rough Opening Height | 84 in |
| Rough Opening Width | 42 in |
| Style | Designer, Farmhouse, Traditional |
| Manufacturer Warranty | 1 Year Limited Warranty |
Frequently Asked Questions (FAQ):
Q: Is the door prefinished?
A: No. It comes unfinished in Knotty Alder wood and can be stained or finished as desired.
Q: What openings will this 42 in. door cover?
A: For most installations it covers roughly 36.5 in. openings; see measurement guide for details.
Q: Does the kit include the track and handle?
A: Yes. Track, rollers, handle, mounting hardware and instructions are included.
Q: What is the door thickness and weight?
A: The slab is approximately 1.38 in. thick and weighs about 90 lb.
Q: Is professional installation required?
A: No. DIY-friendly with step-by-step instructions and BILT app support; average installs in under 90 minutes.
Rustic Warmth, Effortless Movement
This Z-Bar barn door infuses a room with organic texture—its knotty alder grain feels bespoke and beautifully grounded. The bold diagonal brace becomes a graphic statement, juxtaposed with sleek black hardware for a modern-rustic balance. Finish it in a smoky stain for drama or a light wash for airy charm, then let it glide to reveal hidden storage or a serene ensuite. It’s a simple switch that delivers high-impact, luxurious livability.
Elevate your space with rustic style and smooth, space-saving function—add this Masonite barn door kit to your project today.