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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 Traditional 36-in x 84-in Natural Unfinished Knotty Alder Wood Single Barn Door with Clear Glass (Slab Only)
$705.34 USD
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SKU 857722
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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.
Unfinished Knotty Alder 3-Lite Clear Glass Barn Door Slab, 36x84
Elevate interiors with Masonite’s Traditional barn door slab crafted from knotty alder wood and finished natural, ready to stain. The 3-lite clear glass design brightens rooms while the solid-core construction adds authentic weight and durability. Track and hardware sold separately.
Key Features:
- Ready-to-Stain Alder: Natural, unfinished knotty alder wood accepts your custom stain for a tailored look
- Bright 3-Lite Design: Clear glass panels allow light to pass through while adding classic symmetry
- Solid-Core Construction: Heft and authenticity for long-lasting performance
- Slab-Only Convenience: Compatible with most interior barn door track kits; hardware not included
- Trim Allowance: Height 2 in (bottom only); width 1/2 in total (1/4 in each side)
Specifications Table:
| Specification | Details |
|---|---|
| Series Name | Traditional |
| Color/Finish Family | Brown |
| Manufacturer Color/Finish | Natural |
| Door Finish | Unfinished |
| Actual Height (Inches) | 84.0 |
| Actual Width (Inches) | 36.0 |
| Common Size (W x H) | 36-in x 84-in |
| Door Thickness (Inches) | 1.375 |
| Weight (lbs.) | 43 |
| Configuration | Single |
| Core Type | Solid core |
| Door Surface | Smooth |
| Glass Shape | Full lite |
| Glass Style | Clear glass |
| Glass Tint | None |
| Handing | Universal |
| Hardware Included | No |
| Material | Wood |
| Soft Close | No |
| Warranty | 1-year limited |
| Wood Species | Knotty alder |
| Bypass | Yes |
| Assembly Required | No |
| Trimming Allowance | Height: 2-in max (bottom rail only); Width: 1/2-in max (1/4-in off each side) |
| CA Residents: Prop 65 Warning(s) | Yes |
Frequently Asked Questions (FAQ):
Q: Is hardware included?
A: No. This is a door slab only; barn door track and hardware are sold separately.
Q: Can I trim the door to fit?
A: Limited trimming is allowed: up to 2 inches from the bottom for height and up to 1/2 inch total from the sides for width. Trimming beyond this voids the warranty.
Q: What type of glass is used?
A: Clear glass (privacy rating 1) with a full-lite, 3-panel design to maximize light transmission.
Q: What are the exact dimensions?
A: Actual door size is 36 in W x 84 in H x 1.375 in thick.
Q: What is the warranty?
A: 1-year limited warranty.
Sunlit Craft meets Modern Farmhouse Elegance
This knotty alder barn door brings a warm, organic presence to any passage while the three panes of clear glass usher light from room to room. The natural grain and occasional knots feel artful yet grounded, pairing beautifully with matte black hardware for a chic contrast. Style it across a pantry or bath to create a serene, streamlined transition. It’s a refined essential that lends everyday spaces a touch of luxurious clarity.
Bring natural warmth and airy light to your home—choose this Masonite 3-lite knotty alder barn door slab today.