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Masonite

Masonite Traditional 42-in x 84-in Natural Unfinished Knotty Alder Wood Single Barn Door

$1,264.57 USD

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SKU 857725

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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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Masonite Knotty Alder Frosted Glass Barn Door, 42 x 84 in

Elevate interiors with a solid-core knotty alder barn door featuring frosted Pearl glass for light diffusion and privacy. The natural, unfinished slab arrives ready to stain and installs on a sliding track for space-saving transitions in pantries, laundry rooms, closets, and baths.


Key Features:

  • Ready to Stain: Natural unfinished knotty alder wood accepts custom finishes
  • Privacy Glass: Frosted Pearl glass with high obscurity lets light in while maintaining privacy
  • Solid-Core Construction: Hefty feel and authentic wood performance
  • Sliding Barn Design: Single bypass-compatible slab; track and hardware sold separately
  • Trim Allowance: Height up to 2 in (bottom rail); width up to 1/2 in (1/4 in each side)

Specifications Table:

Specification Details
Common Size (W x H) 42-in x 84-in
Actual Width (Inches) 42.0
Actual Height (Inches) 84.0
Door Thickness (Inches) 1.375
Material Wood
Wood Species Knotty alder
Door Finish Unfinished
Manufacturer Color/Finish Natural
Color/Finish Family Brown
Core Type Solid core
Configuration Single
Bypass Yes
Handing Universal
Hardware Included No
Glass Style Frosted glass
Glass Tint Satin white
Glass Shape Full lite
Door Surface Smooth
Soft Close No
Assembly Required No
Warranty 1-year limited
Trimming Allowance Height: up to 2 in from bottom rail; Width: up to 1/2 in total (1/4 in each side)
Can Be Cut to Fit No (beyond allowance voids warranty)
Finish or Rough Opening Width (Inches) 38.0
Finish or Rough Opening Height (Inches) 80.0
CA Residents: Prop 65 Warning(s) Yes
UNSPSC 30171500

Frequently Asked Questions (FAQ):

Q: Is the hardware included?
A: No. This listing is for the door slab only; barn door track and hardware are sold separately.


Q: Can I cut the door to fit?
A: Limited trimming is allowed—up to 2 in from the bottom rail for height and up to 1/2 in total from the width (1/4 in per side). Trimming beyond these limits voids the warranty.


Q: What type of glass is in the door?
A: Frosted Pearl glass with a high privacy rating; it diffuses light while obscuring views.


Q: What openings does a 42-in door typically cover?
A: With casing: covers 32.5–36.5-in openings; without casing: covers 36.5-in openings (see measuring guide).


Q: Is the door handed?
A: Universal handing; suitable for left or right sliding configurations.


Alder Warmth Meets Soft, Silhouetted Light

This barn door marries knotty alder’s organic texture with satin-frosted panels that bathe rooms in a gentle glow. The refined 3‑lite symmetry creates a crisp architectural rhythm that feels tailored yet inviting. Style it with matte-black hardware and layered neutral textiles to balance rustic character and contemporary polish. It’s a quietly luxurious statement that reshapes passageways into moments of design.


Transform your entry with timeless alder and privacy glass—choose this Masonite barn door and elevate your space today.

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