M2
Public Works Canada often uses 950 x
Architectural / Elevators
2150, with a 50 mm frame, matching 2200
block coursing.
We propose capacities be specified
to the next lowest 50 kg. (ex, 4000
Based on project feedback, and ease of
lb = 1816 kg. Specify as 1800 kg)
obtaining hard metric sizes, all of our
projects are now using hard metric door
Signage in the elevator would show
and frame sizes.
1800 kg only.
Louvers and glass should be in hard
Most mfrs can make hard metric
metric dimensions, such as 300 x 300,
platforms. We feel it is not
450 x 450, etc.
critical, and recommend allowing
standard sizes.
Thickness Most architects soft convert
door thickness and are using nominal 45
Specifying 50 mm platform sizes is
mm as standard.
preferred, but allow standard
english platform sizes to be
Frames Almost all door frame section
submitted.
dimensions are being rounded to the
nearest 1 mm. (ex, 13, 25, 41, 50, 80
(ex, 5'7 x 7' platform = 1702 x
mm) Lengths and widths match hard
2134. Specify as 1700 x 2100, but
metric door sizes and should be hard
approve the standard english size)
metric. (ex, 900 x 2100)
Note: Code and criteria requirements
Architectural / Drywall
may restrict this approach and must
be considered on each project.
Sheet width is 1200. Standard stud
spacing is 400.
Speeds should be in m/s, shown to 2
digits.
Thicknesses are the same to minimize
(ex, 0.64 m/s, 0.51 m/s)
production impact. Most architects show
these as 13 and 16 mm on drawings,
Thus mfrs supply standard product,
instead of the exact 12.7 and 15.9 mm.
and rounded numbers appear in specs,
drawings, and to the public.
Minimum orders vary by firm. Partial
truckload orders are available, but
Architectural / Glass
most firms indicated one truckload as a
minimum order. We have now approved
ASTM C1036 gives metric sizes for
metric drywall submittals and will soon
flat glass, heat absorbing glass,
begin installation.
and wired glass. Glass shall now be
specified in mm only. Thicknesses
We feel many projects using 500-2000 m2
for Type 1, Transparent Flat Glass:
should be able to feasibly obtain it.
1, 1.5, 2, 2.5, 2.7, 3, 4, 5, 5.5,
The range of 2000 m2 or more should
6, 8, 10, 12, 16, 19, 22, 25, 32
have no difficulty.
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