The more I work with timber doors the more I learn. Here are a few terms relating to our products, another Blog deals with hardware.
American Black Walnut: used in our contemporary internal doors, see Tokyo
Bi-fold: folding door with multiple sections
Bolection Moulding: shaped beading around a door panel blending different levels
Caming: soft strip of lead, brass or zinc soldered to glass pieces in decorative glass panel
Custom (or bespoke): special door size requested by a customer
Double-Glazed: two panes of glass unit with sealed airspace.
Etched Glass: engraved decorative pattern by chemicals or sandblasting.
Fire Door: door to resist fire ingress with certification e.g. FD30 or FD60 minutes protection
Fire Door Seal or Smoke Seal: intumescent seal to edges of fire door preventing smoke and flames.
Fire Glass: specially tempered and thicker for Fire doors
Frame: perimeter timber to which a door is hinged and latched. Also See jamb.
Hardwood: generally used for external doors, is suitable for staining and painting
Handing: describes direction of opening swing of door.
Header: top component of frame, connected to vertical jambs.
[caption id="attachment_1816" align="alignright" width="180"] Header of a external frame on top of the jamb[/caption]
Insulated Glass (triple glazed): layer of multiple glass pieces in an air sealed unit encapsulated in two further sheets of glass
Jamb: vertical part of doorframe.
Lock Block: block of wood inside door assembly at edge for lock reinforcement
Moulding: shaped timber beading around door panels. See Bolection and Raised
Mullion: vertical post that runs from sill to frame top in a multi-panel door also in frames for panels
Oak: the timber veneer used for our doors is generally American White Oak with a lovely grain
Part L compliant: external doors compliant with a ‘U’ value rating measuring rate of heat loss
Pine: softwood timber used extensively in our doors can be Clear Pine, Knotty or Pitch Pine
Pre-primed: White doors ready to take a topcoat of customers paint choice
[caption id="attachment_1819" align="alignright" width="180"] A prefinished shaker style door[/caption]
Pre-Finished: usually internal doors with a finished stain/varnish facilitating ready to hang
Quadrant beading: rounded beading with 90°back
Rails: horizontal parts of door connecting to vertical stiles
Raised Moulding: protruding shaped timber beading around door panels
Rebate: recess cut along the edges of a door pair or frame to accommodate the other part
Safety Glass: glass when broken, shatters into small pieces without sharp edges.
Sidelight: fixed panel containing glass, installed next to door
Side Panel: fixed panel narrower than the door, can be timber panelled or containing glass
Sill: See threshold
Smoke seal: intumescent seal on all edges of a fire door to prevent smoke and flames escaping
Solid Core: manufactured using various timber sections
Stile: vertical lengths of door construction connected to rails
[caption id="attachment_1823" align="alignright" width="180"] Threshold position under a door[/caption]
Threshold or sill: horizontal bar, part of doorframe assembly, fixed to floor.
Timber: Pine, Oak, Walnut, Wenge and Red Hardwoods
Triple-Glazed: insulated decorative glass assembly with air spaces between outer and inner thickness.
Unfinished: timber door which needs a fine sanding then our specified finish done by customer
Unglazed: door constructed to take customers own glazing beads supplied
U-Value: See Part L
Veneer: thin facing of timber, adhesively bonded to core of door.
Water Ingress (penetration): unwanted passage of water through door or frame, see finishing instructions.
Weather bar: timber component fixed to bottom face of door will displace rainwater
Wired Glass: glass made for use in fire doors, which has embedded wires that bind the glass, and permit the glass to remain monolithic when exposed to fire.