Floor, Wall and Roof Framing - AS1684.4

Floor framing - AS1684.4
Q
no Answer Reason or Explanation
1i Suitable The building is to be built in a city whose perimeter
has an estimated over 250,000m2 of open spaces.
ii Suitable
The plan is partly rectangular and partly L-shaped
which is within the physical limits for timber-
framed construction
iii Single and two storey construction Two storey in the maximum load that timber can
support due to its strength
iv Suitable Less than 16M which is the maximum
v Suitable Within the provided limits of 3000mm
vi Suitable Within the standard limits
vii Suitable Roof pitch is 30⁰ which is within the 35⁰ maximum
limit range
2 Yes
The site on which the building is to be constructed
has such topography that is able to support the
structure
3 450mm
4 300mm. The information would be
found in the BCA
5 There would be no need of filling
The floor of the building would be raised hence pad
foundation would be used in the construction of the
foundation.
6 50kPa,
Controlled fill is an embankment
operation where the depth of
lift, moisture content and
compaction equipment are
closely regulated a by
inspection and specification.

A rolled filled is an
embankment of the rock or
earth where the material is
put in layers and compacted
using rollers. kPa is a unit
for measuring pressure.
Allowable bearing pressure
refers to the ability of the
soil to support the load of a
building and its contents
excluding excessive
settlement.
7 Diagrams unavailable
8
A DPC is a barrier that prevents
moisture from passing through a
structure by capillary action
through the rising damp
phenomenon.
9
Thin material pieces of impervious
materials that are installed to stop
water passage through and into a
structure or to be as part of the
weather resistant barrier system.
10 Windows, chimneys, vent pipes,
walls, door openings, roofs
11 Size of floor Framing Members - identify the location of timber stumps, bearer, joists
and the ledger on the plan below.

Q11 continued... Size the members.
AS1684 table
used
Timber
stress grade
Span
mm
Spacing
mm
Single or
continuous
span used for
sizing?
Size
(mm x mm)
Post
(note:
footing
type 2)
F11 1400mm 100 x 50
Bearers Unseasoned
F11
Joist Unseasoned