What are the main types of doors you can get for inside a house?

Hinged Doors: The most common style that swings on hinges. Bifold Doors: These fold in the middle and are great for closets where space is tight. Barn Doors: These slide along a track on the outside of the wall for a rustic, farmhouse look. French Doors: These have glass panes and are perfect for letting light move between rooms.

Interior Door Styles & Types

In Canada, door sizes are fairly standardized to meet building codes and accommodate furniture and accessibility needs. The most common interior door sizes are 30 or 32 inches wide by 80 inches tall. The typical thickness is 1 3/8-inch. When measuring, always use the smallest width of the rough opening and add 2 ½ inches to the width and 2 inches to the height for a proper fit.

Choose between prehung doors (including frame and hardware) for new builds or slab doors if you’re replacing a door. Popular door types include space-saving bifold and pocket doors where there’s less clearance.

Hollow MDF is budget-friendly and lightweight, while solid MDF offers better sound insulation. For the best durability and a premium feel, solid wood (stile and rail) is the gold standard and provides excellent noise resistance.

Always confirm your door swing (left-hand or right-hand) before ordering.

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Popular Interior Door Type

Hinged Doors

Hinge doors open easily from either room and can swing either inward or outward. 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.

Sliding

Sliding doors are ideal for closets or anywhere space is tight because they don’t swing open. They’re a great choice for pantries, cupboards, wardrobes and more.

Pocket

Pocket doors are similar to sliding doors, but they disappear almost completely when open. They’re great for closing off spaces that may otherwise be left open, like kitchens, dining rooms, pantries and more. They’re also a great option for saving space.

Bifold

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, while the doors are hinged together in the middle. A single pair of bifold doors generally accommodates up to a 36-inch opening, while two pairs support openings from 48 to 72 inches.

Barn Doors

Barn doors are a beautiful option that provide some rustic charm to any space. They hang on a track that rests above the door and slide open and closed. They’re great for kitchens, living rooms and other areas.

Doors are shown sitting in a room before being installed.

You’ll also need to choose whether you want a slab door or a prehung door. A slab door simply a rectangular piece of material in the shape of a door. It doesn’t come with a frame, hinges or hardware. A prehung door comes with everything you need, including a frame, hinges, pre-drilled knob holes and all of the hardware you’ll need to install it.

If you’re replacing existing doors, you can use slabs, but if you’re installing new doors from scratch, it’s easier to go with a prehung option. It all depends on what you’re comfortable with.

Popular Interior Door Style

Flush

A flush door is a simple, flat door with no moulding or design.

Panel-moulded

A panel-moulded door has moulding panels to add visual variety.

French

A French door is usually characterized by glass or windows covering most of the face of the door to allow light through.

Interior Door Core Types

Hollow MDF

Primed and ready for paint
Lightweight
Composite construction for higher durability
Low sound insulation
Lower cost

Solid MDF

Primed and ready for paint
Lightweight
Composite construction for higher durability
Better sound insulation
Medium cost

Solid Wood (Stile and Rail)

Can be sanded and painted
More expensive
Heavy
Excellent sound insulation
Features real wood grain

Interior Door Sizes and Installation Tips

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

Door thickness: Available in 1-3/8" and 1-3/4" thicknesses
Door width: Standard widths include 18", 20", 24", 28", 30", 32" and 36" doors
Door height: 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

Related Resources

Frequently Asked Questions

To find the right size, measure the width of the doorway in three places: the top, middle, and bottom. Use the smallest measurement to make sure the door fits. Most standard interior doors in Canada are 30 - 32 inches wide.

A pocket door slides into a hidden slot inside the wall when you open it. Because the door does not swing out into the room, it frees up about 10 square feet of floor space.

Hinged Doors: The most common style that swings on hinges.
Bifold Doors: These fold in the middle and are great for closets where space is tight.
Barn Doors: These slide along a track on the outside of the wall for a rustic, farmhouse look.
French Doors: These have glass panes and are perfect for letting light move between rooms.

A slab door is just the door itself without a frame. A prehung door comes already attached to a frame with hinges, which is the best choice for new builds or if your old frame is damaged.

Solid core doors are made with a heavy wood fibre centre. They don't warp as easily, and they are much better at blocking noise.

Barn doors are much easier to install because you don't have to cut into the wall. Pocket doors are better if you want the door to completely disappear to save the most space.

Solid wood doors are high-quality but cost more. Composite or solid core doors offer a similar feel and great soundproofing for a more affordable price.

A solid core door is best for a bedroom because it helps with soundproofing, giving you a quiet place to sleep. Hollow core doors are very light and work well for a closet where noise is not a problem.

For a modern look, choose flush slab doors for a smooth appearance. Simple shaker-style doors with straight lines also fit very well in modern homes.

For a quiet office, choose a solid core or solid wood door. These heavy materials act as a barrier to keep out household noise.