WOODWORK FOR DOORS IN BUILDINGS
Woodwork or cabinetmaking or
carpentry involves the fabrication and installation of wooden members that are
generally provided in a building. On site, it involves the assembly of the
different wooden components and their fixing.
Important Expressions:
Door jamb: The surrounding case into and out
of which a door closes & opens is called as a door jamb.
Nudging: The obstruction caused to the
easy closing of door by the doorframe.
Technique:
Pre
construction:
1. The
first snagging work should be completed.
2. The
opening for all the doors should be located according to the GFC drawings.
3. Once
the block work base course has been laid, check if the openings have been made
at the correct locations from the walls.
4. The
verticality and the perpendicularity of the openings are checked by a spirit
level and a right angle respectively.
5.
Check the dimensions of the door openings.
Usually:
Main doors - 1.0 x 2.1 m
Bedroom doors - 0.9 x 2.1 m
Toilet doors - 0.8 x 2.1
m
6.
While unloading, shifting, handling and stacking, care shall be taken to avoid
tedious one unit over the other as it may
cause damage particularly to the
decorated surfaces.
7. The
material shall be carried preferably flat to avoid damages to corners and edges.
8. If the materials are received in crates; they
shall be stacked as such and removed
only when required.
Construction:
1. The
doorframes (brought as single piece from the factory) are placed in the door
openings in such a way that a gap of 10mm is maintained on all the sides from
the jambs of the walls.
2. The
frames are firmly held in their places, after centering (by plumb bob) with the
help of wooden clamps and wedges
3. The
gaps coming in between the frames and the walls are completely filled with door
foam.
4. After
a setting time of half an hour for the foam, the wooden clamps and wedges are
removed and the excess door foam extruding out of the frame surface is removed
out with a putty blade.
5. Architraves
(brought as side and top pieces
6. from
the factory) are placed in their positions.
5. The architraves are fixed in
their positions with lacquer adhesive and then further bound with C clamps and
wooden wedges to the walls and doorframes.
6. After the architraves are
completely set in their positions, the C clamps and the wedges are
removed.
7. Suitable
locations on the door shutters (brought from the factory) and the doorframes
are chipped for fixing hinges.
8. The
door shutters are fixed in the correct position with reference to the
doorframes by fixing screws in the hinges.
Post
construction:
1. Once
the door shutters are fixed, the gap coming in between the architraves &
the tiles are filled with silicone sealant to prevent water seepage.
2. The
LDPE sheets covering the shutters (as brought from the factory) are removed
only after the second and third coat of painting is done.
Quality
Inspection Criteria:
The
doorframes and shutters should be aligned exactly vertical and according to the
GFC drawings. This should be checked with the help of a spirit level and a
plumb bob.
1. Check
the doorframes, shutters and the architraves for perpendicularity with respect
to the flooring by using a right angle template and a spirit level.
2. Colour
homogeneity of the doorframe, architraves (both front and back) and door shutters must be ensured.
3. Door
shutters should close without nudging and a uniform gap should be visible
between the doorframe and shutter.
4. The
horizontal and vertical gap between the architrave and plastered wall should be
filled with silicone sealant.
Inspection
Tools:
1. Plumb bob
2.
Spirit level
3. Right angle
4. Approved drawings and schedule of
openings.
Regards,
J.Jaya Ruban,
Land Valuer in Tamilnadu,
Chennai.
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