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Interior Doors

Choosing the Right Interior Door

Interior doors not only provide an optional division of two spaces, they add style to both areas and complement their existing trim and finish.

Common functions include providing privacy and reducing noise between two rooms or floors, and separating living space from closet storage. Interior doors are available in many standard widths and heights as well as custom dimensions.


Find your Interior Door in 3 Easy Steps

1  Choose the Type

There are four types of interior doors: hinge, bypass (sliding), bifold and pocket.

Hinge Doors

Hinge doors make ideal passage doors as they open easily from either room, and can support the inward or outward swing of a standard or oversized door. Hinges can reside on either the left or right side of the door to accommodate the functionality of both rooms. Single hinge doors are most commonly used for bedrooms, bathrooms and kitchens, however double hinge doors are becoming increasingly popular and add grandeur to a master bedroom or formal dining room.



Bypass (Sliding) Doors

Bypass door units have two or more standard-size interior doors, which are hung on rollers from a track and open from side to side. Sliding doors are popular for closet applications because they save on swing space, and mirrored finishes can make small rooms appear larger and reflect light for a brighter look.



Bifold Doors

Bifold doors have one or two pairs of doors that fold in half to open, and are ideal for closets in smaller rooms. They slide on a track and are secured with pivots in the top and bottom corners. The doors are hinged together in the middle to maximize the functional closet opening without interfering with traffic. A single pair of bifold doors generally accommodates up to a 36" opening, while two pairs support openings from 48" to 72".



Pocket Doors

Pocket doors are similar to bypassing door units, except that pocket doors roll back into the wall to appear virtually invisible when open.


2  Choose the Style

Interior doors come in louvre, French, moulded (panel) and flush styles with either solid or hollow cores. Moulded interior doors are offered in wood-grain and smooth finishes, and flush doors are available in a variety of pre-finished hardboard and unfinished hardwood patterns. Louvre doors help ventilate closets and improve air circulation between rooms, while French doors allow natural light to cascade from room to room.

Louvre Over Louvre
15-Lite Square
3-Panel Equal
6-Panel Moulded

Hollow core doors are made with interwoven corrugated hollow cells that support the outer face of the door; they are lightweight and ideal for low-traffic areas. Solid core doors are constructed from particleboard or fibre core materials, giving them solid weight that helps reduce noise.

All door styles are available as prehung (which includes the jamb and frame) or as slab (which includes just the door itself); most doors are enclosed in jambs that frame the opening.


3  Choose the Material

Wood Doors

  • Features real wood grains
  • Paintable and stainable

MDF Doors

  • Composite wood construction for higher durability
  • Primed and ready for painting


Installation Considerations for Interior Doors

To ensure proper installation, first determine the required door swing and handle placement. Regardless of whether the door swings away from you or toward you, if the handle is on the left side, it is a right-hand door and, if the handle is on the right, it's a left-hand door. Replacement doors should have the same measurements as old doors. When purchasing doors for a new area, measure the width of the doorway at the top, middle and bottom and use the smallest measurement. To determine a rough opening size, add 2-1/2" to the width and 2" to the height

  • Available in 1-3/8" and 1-3/4" thicknesses
  • Standard widths include 18", 20", 24", 28", 30", 32" and 36" doors
  • Standard heights include 80", 84" and 96" doors
  • Customized sizes are available in a range of different designs
  • To measure for a prehung door, remove the interior casing and measure the opening


Frequently Asked Questions

Can I Stain a Primed Hardboard Door?
  • No, staining is not recommended. However primed hardboard doors can be painted.

Why Buy a Solid Core Door Rather than a Hollow Core Door?
  • Buy a solid core door where security, noise resistance or fire resistance is important.

What Measurements are Needed for an Interior Door?
  • For a slab, measure the existing door. For prehung, measure the rough opening.

Can I Use My Old Lockset/Handleset?
  • Yes, if the holes are drilled in identical locations.