A door is a movable structure used to open and close an
entrance, typically consisting of a panel that swings on
hinges or that slides or spins inside a space.
When open, doors admit people, animals, ventilation, and
light. The door is used to control the physical atmosphere
within a space by enclosing the air drafts, so that interiors
may be more effectively heated or cooled. Doors are
significant in preventing the spread of fire. They act as a
barrier to noise. Many doors are equipped with locking
mechanisms to allow entrance to certain people and keep
out others

Flush doors are simple interior
and exterior doors that feature
plain facings on both sides of
the construction. While the flush
door is more closely associated
with function rather than style,
this plain sort of door lends itself
well to a number of room
designs where the desire is to
highlight other elements in the
space. Doors of this type may
have a solid or hollow core.

Panel interior doors are a nice
accent piece for many homes.
While doors are an important
and necessary part of any
home, choosing a panel interior
door allows you to add a
custom look to your rooms. A
panel door is typically a heavier
weight door than less
expensive doors in addition to
their specialized look.

Bi-fold doors are often used as
alternatives to standard closet doors and
sliding door systems. Larger bi-fold door
systems are used as room dividers. A
typical bi-fold door is actually two panels
connected by centralized hinges. Bi-fold
doors are usually hung from overhead
tracks and suspended by rollers or
casters. The innermost door panel has a
knob or a pull which allows the user to fold
the door panels together. The folded door
can then be pushed to the sides of the
opening, allowing access to the entire
area behind it. Similar sliding doors only
allow part of the space to be accessed.

Sliding doors open
horizontally by sliding
along a track. They are
mounted on or
suspended from the
track and slide in either
direction on roller
wheels. There are many
different types of sliding
doors available to
consumers today.

Pocket door kits are typically
sold according to the size and
type of sliding door they will
hold. Basic kits are initially
divided into two categories
based on the type of stud
found inside the walls of the
home where the pocket door
will be mounted.

A door, usually interior,
with special hinges or
pivots which allow the
door to function in both
directions.

A Dutch door is a door which
consists of two panels divided
in half horizontally, allowing
the top and bottom of the door
to be closed independently.
Classically, the bottom panel
is left closed, while the top is
left open to permit the
circulation of light and air. It is
very common in rural design
and homes which are meant
to have a rustic look and feel.

A French door is a door made up
of panes or panels of glass.
Wooden frames or partitions
separate each pane. Glass panes
are generally rectangular in shape
and make up the majority of the
surface of the door. This type of
door is typically used as a style
element. It is frequently used as a
way to bring more natural light into
a home, or as a way to divide
rooms and set them apart while
still maintaining an open feel to the
overall space.

Garage doors are often
differentiated from each
other in two main ways: the
materials they are made
with and the way the open.
While many are familiar with
overhead garage doors
(multi-panel, solid panel),
other types include
horizontal sliding doors, and
bi-fold. Popular materials for
such doors include wood,
steel and vinyl.