Architecural / Block
Architectural / Ceiling Systems
Hard metric block has 12.5 block per m2.
Many design and construction projects, both renovation
and new construction, are using the 600 x 600 system.
Metric block has been installed on US projects.
Many facilities with 2 x 2 grids are not adversely
Standard mortar joint for brick and block is 10 mm.
affected by use of new 600 x 600 grids, since
coordination between grids, window mullions, and other
Sizes: 90, 140, 190 thick, 190 x 390 face
architectural elements is often not maintained through
years of renovation.
Some metric block are being supplied using molds
borrowed from sources that already owned them,
With hard metric ceilings, room dimensions can be
eliminating mold purchase costs.
multiples of 600 mm, giving clean, rounded dimensions
to construction personnel for layout.
See other national policy on this issue.
Architectural / Doors
Architectural / Brick
A popular size is 900 x 2100, especially in interior
75 modular metric per m2, 50 metric jumbo per m2.
partitions. 1000 x 2100 is sometimes being used.
BIA says most member firms can supply metric brick.
Public Works Canada often uses 950 x 2150, with a 50
Metric brick has been used on US projects.
Metric modular is most common: 90 x 57 x 190
Based on project feedback, and ease of obtaining hard
Jumbo brick is also popular:
90 x 90 x 190
metric sizes, all of our projects are now using hard
metric door and frame sizes.
Three modular courses with 10 mm joints rounds to 200
mm. Two jumbo courses equals 200.
Louvers and glass should be in hard metric dimensions,
such as 300 x 300, 450 x 450, etc.
Brick should be specified in metric whether ASTM C216
Thickness Most architects soft convert door thickness
or ASTM C62 / AASHTO M114 is used.
and are using nominal 45 mm as standard.
Weepholes mostly spaced in 100 mm sizes. (ex, 600)
Frames Almost all door frame section dimensions are
being rounded to the nearest 1 mm. (ex, 13, 25, 41, 50,
Architectural / Carpet
80 mm) Lengths and widths match hard metric door
sizes and should be hard metric. (ex, 900 x 2100)
Most firms have the dies and can or do make metric tile.
It is usually not stocked. Minimum orders go from no
minimum to several hundred square meters. Most said as
industry goes metric, minimums would drop and
premiums would shrink or be eliminated.
Most common sizes are 500 x 500 and 600 x 600.
Our projects are now specifying hard metric tile sizes.