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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 36 in. x 80 in. Smooth Flush Hardboard Solid Core Birch Veneer Composite Interior Door Slab

$124.00 USD

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SKU 104280

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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.

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.

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Product details

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36x80 Birch Veneer Solid Core Interior Door Slab

This Masonite interior slab door features a smooth, flush birch veneer over a solid core for durability and sound reduction. It arrives unfinished, ready to paint, stain, or varnish to match your décor, and fits standard 36 x 80 in. openings.


Key Features:

  • Solid Core Construction: Dense core enhances durability and helps reduce sound transmission between rooms
  • Birch Veneer Finish: Real wood veneer provides a clean, modern grain that can be painted, stained, or varnished
  • Smooth, No-Panel Design: Contemporary flush look complements a wide range of interiors
  • Unfinished and Customizable: Arrives ready to finish and must be sealed on all six sides for longevity
  • Slab-Only, Reversible Handing: Universal handing; hardware not included for flexible installation

Specifications Table:

Specification Details
Door Size (WxH) 36 in. x 80 in.
Panel Type No Panel / Smooth Flush
Material Composite with Birch Veneer
Core Type Solid Core
Texture Type Smooth
Color/Finish Unfinished
Color Family Light Brown
Bore Type No Bore
Door Handing Universal/Reversible
Door Type Interior Slab
Door Thickness 1.75 in.
Fits Opening Height 80 to 80-7/8 in.
Fits Opening Width 36 to 36-3/8 in.
Included Instructions; No additional items included
Features Easy Install
Manufacturer Warranty 1 Year Limited Warranty
Product Weight 65 lb
Finish Type Unfinished
Construction Notes Must be sealed on all six sides
Brand Masonite

Frequently Asked Questions (FAQ):

Q: Is this door prehung or a slab only?
A: It is a slab-only door; jambs and hardware are not included.


Q: Is the door pre-bored for a handle?
A: No, it comes with no bore and can be drilled to your specifications.


Q: What are the exact dimensions and thickness?
A: Nominal size is 36 in. W x 80 in. H with a 1.75 in. thickness.


Q: Can I paint or stain this door?
A: Yes, it is unfinished birch veneer and is designed to be painted, stained, or varnished; seal all six sides.


Q: Is the handing fixed?
A: No, it is universal/reversible handing for flexible installation.


Quietly Modern, Warmly Natural

This flush birch veneer door is a study in restrained elegance, letting the natural grain become the artwork. The smooth, panel‑less face creates an uninterrupted plane—perfect for contemporary lines and serene spaces. Finish it in a deep walnut stain for drama or a pale wash for Scandinavian softness, then pair with a minimalist lever in satin nickel. It’s a refined essential that elevates everyday thresholds into moments of luxury.


Customize your space with this durable, ready-to-finish birch veneer slab—add it to your cart and make it yours today.

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