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Masonite

Masonite Traditional 36-in x 84-in Natural Unfinished Knotty Alder Wood Single Barn Door

$850.13 USD

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SKU 857724

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What to measure before ordering
  1. 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.

  2. 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.

  3. 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.

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Product details

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Traditional Knotty Alder Frosted Glass Barn Door, 36x84

Bring modern warmth to interiors with Masonite’s unfinished knotty alder barn door featuring three frosted glass lites for privacy and light. The solid-core slab offers authentic wood heft and arrives ready to stain to match your decor; hardware and track sold separately.


Key Features:

  • Ready to Stain: Natural unfinished knotty alder accepts custom finishes.
  • Privacy + Light: Satin-white frosted glass (3-lite) lets light in while maintaining privacy.
  • Solid-Core Construction: Adds durability, sound reduction, and a premium feel.
  • Slab Only: Barn door track and hardware sold separately for flexible styling.
  • Trim Allowance: Up to 2 in height (bottom rail only) and 1/2 in width total; trimming beyond limits voids warranty.

Specifications Table:

Specification Details
Common Size (W x H) 36-in x 84-in
Actual Width (Inches) 36.0
Actual Height (Inches) 84.0
Door Thickness (Inches) 1.375
Color/Finish Family Brown
Manufacturer Color/Finish Natural
Door Finish Unfinished
Material Wood
Wood Species Knotty alder
Core Type Solid core
Configuration Single
Bypass Yes
Glass Style Frosted glass
Glass Tint Satin white
Glass Shape Full lite (3-lite design)
Door Surface Smooth
Handing Universal
Hardware Included No
Soft Close No
Assembly Required No
Finish or Rough Opening Width (Inches) 32.0
Finish or Rough Opening Height (Inches) 80.0
Warranty 1-year limited
Weight (lbs.) 50
CA Residents: Prop 65 Warning(s) Yes
UNSPSC 30171500
Trimming Allowance Height: up to 2 in (bottom rail only); Width: up to 1/2 in total (1/4 in per side)
Hardware Barn door track and hardware sold separately

Frequently Asked Questions (FAQ):

Q: Is the hardware included?
A: No—this listing is for the door slab only; purchase track, rollers, and handle separately.


Q: Can I cut the door to fit?
A: A limited trim is allowed: up to 2 in from the bottom rail and 1/2 in total from the sides; trimming beyond this voids the warranty.


Q: What type of glass is used?
A: Frosted (satin white) glass with a high privacy rating to diffuse light while obscuring views.


Q: Is the door pre-finished?
A: No, it’s natural unfinished knotty alder and ready to stain.


Q: What rooms is it suitable for?
A: Ideal for pantries, laundry rooms, closets, offices, and bathrooms where privacy and style are desired.


Alder warmth, frosted serenity—a modern barn door moment

This door marries the organic character of knotty alder with the soft glow of frosted glass, instantly elevating transitional spaces. The three-lite rhythm creates a clean, tailored geometry that feels both classic and fresh. Style it with matte black hardware and a rich walnut stain for sophisticated contrast, or keep it natural for airy minimalism. It’s a timeless layer of texture and light—essential for luxurious, livable design.


Transform your doorway with this solid-core, privacy-friendly barn door—stain it your way and complete the look with hardware to suit your style.

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