A
Created by the:-
Carpentry & Joinery Section
Granville & Chullora Technical College
This is a plan
view of a gable
roof.
To build this
roof certain
stages must
happen to
successfully
complete
correctly and
safely.
Plan View Gable Roof Construction
4000 mm
3000 mm
Center
line
1. The bases or top
plate dimensions
are 3.0m X 4.0m
Center
line
Center
line
Center
line
Plan View Gable Roof Construction
2. Measure from the
centre of the top
plates out at 450
centers.
3. Mark ceiling joists
and rafters on the
top plate.
1. Place ceiling
joists in
position & fix
down. This
protects you
or your mate
from falling
off of ceiling
frame
because of
racking.
2. Place ceiling
trimmers in
position & fix
Plan View Gable Roof Construction
Brace for hanger
1. Place hanger
beam in
position but
don’t forget to
brace & plum
the hanger
before you fix
the ceiling
joists to it.
2. A plank next to
the hanger will
help you in
fixing the
hanger safely.
Plan View Gable Roof Construction
1. Measure and cut
ridge beam &
place on top of
the hanger
beam.
2. Cut pattern rafter
& use it to cut
common rafters.
3. Fix centering
rafters into
position and lift
ridge beam into
place.
1. Plum rafters &
brace ridge.
This brace also
stops wind load
from pushing
the finished roof
over. It must
conform with
the B.C.A.
2. Place common
rafters into
position & fix.
1/3
2/3
1. Place pitching
plate into position
then outriggers will
sit on top and
support the barge
rafter.
2. The outriggers
must conform with
the B.C.A in the
sense that the
counter lever is 2/3
inside and 1/3
outside the
pitching plate.
1. Brace roof
using hoop iron or
speed brace
material & once
again it must
conform with the
B.C.A.
2. Place Painted
fascia & painted
barge board to
finish the work.
Don’t forget the
bell cast for roof
material
Gable Roof

Safety first

Don’t cut any timber that is painted

Use triple grips & screws for fixing.

Efficiency in building will make the task
easier.

Clean up at the end of the day must be
done safely & correctly

When in doubt ask the teacher !!!!!!!
( you are working at height)