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Minimum section sizes,
material specifications and other criteria apply to BWF
CERTIFIRE approved, fire-rated doorsets. These are detailed in
Data Sheets related to individual door leaf constructions
(attached to each doorset) but will automatically be
incorporated in our designs for doorsets to meet specified
performance requirements. Availability of materials, finishes
and section profiles for each product range is indicated in
individual product brochures but general information is
summarised in the tables in the doorset
materials & finishes section and with the drawings
which follow.
Sizes and section profiles
The following terminology is used to describe frame
elements:
Standard partition thicknesses for all frame sections are 94,
100, 113, 126 and 144mm, although others are available,
depending upon the product range. Non-standard sections and
sizes can also be provided, and these should be discussed with
us. The following ranges of frame sections are available as
shown in the drawings:
Mono
A particularly
easy to install one-piece unit, suited to exact opening sizes
and for use with or without architraves. As well as being
suitable for internal use, it is the standard frame for external
and security applications. (The Monex frame is used in inward
opening external doorset situations.) Mono edges are softened
with a 3mm radius (6mm for PVC wrapped). This section can be
used with extension pieces for larger widths.
Barum
A traditional style frame with planted stop, used with
extension pieces for larger widths. Barum edges are softened
with a 3mm radius (6mm for PVC wrapped). This section is also
suitable for double action doors without a stop. This is the
standard frame for medium to high level acoustic doorsets.
Cubith
A split frame design with integral architraves and planted
stop. It also allows an almost unlimited range of partition
widths and reveal depths. Cubith edges are softened with a 3mm
radius (6mm for PVC wrapped).
Solo
A steel frame traditionally used in security and industrial
situations but suitable for all applications, available in a
range of sizes. The Split Solo is available to cater for varying
partition thicknesses.
Architraves
Where specified, architraves are supplied in either hardwood,
softwood or MDF with finishes to match or contrast frames.
Availability of architraves for each product range is indicated
in individual product brochures. Architraves can be secret fixed
or pinned (which we recommend should be punched and filled). Dog
leg architraves are useful for accommodating various partition
widths while still using standard frame sizes. Standard
architrave sections are shown below but other profiles can be
supplied.
Extension lining
With the exception of Cubith where partition thicknesses
exceed 144mm, an extension lining is used to extend the width of
the frame to fill the reveal. (See example below)
Frame joints
Frames are joined at the corners with one of 3 methods;
mortise and tenon, mitre and half-lap. The performance levels
chosen by the specifier and the section profile determine which
of these joints are used ensuring that the resultant joint gives
the appropriate level of strength and durability.
| |
|
| Frame
profiles |
All dimensions determined
by performance requirements |
| |
|
 |
a - 32, 44mm
b - 12, 18, 25mm
c -
door thickness +2mm
d - 94 - 144mm
e
- 44, 50, 69mm |
| |
|
 |
a - 32, 39, 44mm
b - 12, 14, 18, 19mm
c
- door thickness +2mm
d - 94
-144mm
e - 30, 34, 42mm
(Omit stop when double swing) |
| |
|
 |
| a - |
32mm |
| b - |
14, 18, 19mm |
| c - |
door thickness +2mm |
| d - |
78, 85mm |
| e - |
Varies to suit partition |
| f - |
45, 65mm |
| g - |
12, 18mm |
| h - |
18mm |
|
| |
|
 |
a - 44mm
b
- 12mm
c - door thickness +2mm
d - 94 -144mm
e - 9°
|
| |
|
 |
a - 32, 50mm
b - 18, 25mm
c - door
thickness +2mm
d - 100 -150mm
e
- 19mm |
| |
|
 |
a - 32mm
b
- 18mm
c - door thickness +2mm
d - 100mm
e - varies to
suit partition |
| |
|
| Note: bold figures indicate default
dimension for non-rated, FD30 and FD60 unless otherwise
stated. |
 |
|
| Extension
lining |
|
| |
|
 |
a - 8mm
b - 10mm
c
- 18mm
d - 45mm - 144mm
All dimensions determined by performance requirements
|
|
|
| Architraves |
|
| |
|
 |
| a - |
14, 18mm |
| b - |
10mm |
| c - |
10mm |
| d - |
45, 69mm |
| e - |
2mm |
| f - |
20, 24mm |
|
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|
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