1. Building Construction I Sofia Sebastian 1
Doors
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Doors
A door is a movable barrier that separates internal and external spaces
Usually attached to a frame on one side by hinges
A door provides access, protection, security and privacy
Performance standards of doors
Weather resistant – need a min gap of 2mm for free movement
Security – depend on the materials used. Internal doors need to provide minimum security
Fire resistance – internal doors made of materials that prevent the rapid spread of fire. Heavy enough to be self closing
Sound insulation
Privacy
Operation
Durability
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Parts of a standard Door
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Door construction
Ledged, Braced and Battened door
Framed, Braced and Battened door
Flush door
Paneled door
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Door construction
Ledged, Braced and Battened door
Very simple door for internal or external use, which is cheap to make
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Door construction
Framed, Braced and Battened door
This door is stronger than the ledged, braced and battened because the battens are set inside a timber frame
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Door construction
Flush doors have no projections or recesses on either surface of the door.
These doors are usually made of large sheets of plywood or hard board.
Flush doors may have glazed panels to allow in some light
Flush door
A core is the inner part of the door. The external boards or sheets of plywood are fixed to it. The core can be made from
A soft wood frame work of horizontal and vertical pieces joined together in recessed joints
A cellular centre of paper or cardboard strips glued together in a lattice pattern
A solid centre of timber strips glued together. – very heavy door with good sound insulation – external and fire doors
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Door construction
Construction of a Flush door
Frame for a flush door
Facing and edging of a flush door
Finishing for a flush door
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Door construction
Flush door
An alternative core using a cardboard lattice
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Door construction
Panelled door
Panelled doors are suitable for external and internal use
They are made from solid timber frames with solid or glazed panels
The parts of a panelled door
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Door construction
Panelled door
The panels can be
Thin, solid timber
6 mm plywood
Clear or obscure glass
The panels are usually fitted into rebates in the frames and screwed or nailed into piece
This method allows you to remove and replace panels, including glass panels
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Door dimensions
Doors for domestic buildings can be 2m high
Lock and latch in one unit
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Door construction
Strap hinge
Iron mongery
Basic door iron mongery consists of hinges, locks and latches
Parts of a butt hinge
Spring operated latch
Dead lock operated by a key
Lock and latch in one unit
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Examples of standard door locks and handles
Lever handle
Door bolt
Pull handle
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Door frames and linings
The purpose of door frames is
to define openings
Reduce the gap between the door and wall
Provide finish between the door and wall
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Different types of wooden joints
Butt joint
Lap joint
Housing joint
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Different types of wooden joints
Mortise and Tenon joint
Mitre joint
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Different types of wooden joints
Finger joint
Dove-tail joint
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