Masonite Traditional 42-in x 84-in Natural Unfinished Knotty Alder Wood 3-Lite Clear Glass Single Barn Door (Slab Only)

Regular price $1,093.58

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Knotty Alder 42x84 Unfinished 3-Lite Glass Barn Door Slab

Bring warm, natural character to interiors with this Masonite Traditional barn door slab crafted from knotty alder. The 3-lite clear glass design brightens rooms while the solid-core construction adds authentic wood heft and durability; arrives unfinished and ready to stain.


Key Features:

  • Ready to Finish: Natural unfinished knotty alder arrives ready for your custom stain.
  • Bright 3-Lite Design: Clear full-lite glass panels let light pass between rooms.
  • Solid-Core Build: Heavier, authentic wood feel for durability and sound reduction.
  • Slab Only: Track, handle, and hardware sold separately for flexible installation.
  • Trim Guidelines: Up to 2 in bottom, 1/2 in total width (1/4 in each side) within warranty.

Specifications Table:

Specification Details
Series Name Traditional
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
Color/Finish Family Brown
Manufacturer Color/Finish Natural
Door Finish Unfinished
Configuration Single
Bypass Yes
Core Type Solid core
Door Surface Smooth
Glass Style Clear glass
Glass Shape Full lite (3-lite design)
Glass Tint None
Handing Universal
Hardware Included No
Soft Close No
Assembly Required No
Warranty 1-year limited
CA Residents: Prop 65 Warning(s) Yes
UNSPSC 30171500
Finish or Rough Opening Width (Inches) 38.0
Finish or Rough Opening Height (Inches) 80.0
Trimming Allowance Height: up to 2 in (bottom rail only); Width: up to 1/2 in total (1/4 in each side)

Frequently Asked Questions (FAQ):

Q: Does this include the track and handle?
A: No. This is a slab-only door; all barn door hardware is sold separately.


Q: Can I trim the door to fit?
A: Yes, within limits: up to 2 in from the bottom and 1/2 in total from the width (1/4 in each side). Trimming beyond this voids the warranty.


Q: What is the glass type and privacy level?
A: Clear glass with a low privacy rating (1 of 10), allowing maximum light transmission.


Q: Is the door prefinished?
A: No. It is natural unfinished knotty alder and is ready to stain.


Q: What openings will this cover?
A: A 42-in wide barn door typically covers a 36.5-in opening without casing, per Masonite measuring guide.


Sun-washed Simplicity with Tailored Warmth

This knotty alder barn door washes a room in natural light, its three clear lites creating rhythm and effortless flow. The organic knots and grain offer soulful texture against sleek, rectilinear lines. Stain it a honeyed caramel and pair with matte black hardware for a refined, modern-farmhouse statement. It’s an elevated essential that turns transitions into moments of quiet luxury.


Elevate your space with light and texture—add this Masonite 3-lite knotty alder barn door to your cart today.

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