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Load Areas
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M
U L L I O N /
A
N C H O R
C
A P A C I T Y
C
A L C U L A T O R
FOR USE WITH FLORIDA PRODUCT APPROVAL #261 or NOA 23-0913.05
Mullion
Design
Pressure
(psf)
Min. Anchor/Clip
Capacity
Req'd (lbs)
Enter Mullion Length:
in
Enter Unit 1 Dimension:
in
Enter Unit 2 Dimension:
in
1
1" x 2.75" x .375" Alum. Tube Mullion
Unit 1 & 2 Dimensions should include half of your mullion thickness.
2
1" x 2.75" x .650" Alum. Tube Mullion
3
1" x 3.125" x .500" Alum. Tube Mullion
Your Opening Dimension is:
in
4
1" x 4" x .125" Alum. Tube Mullion
Use only the dimensions of 2 directly adjacent units.
5
1" x 4" x .375" Alum. Tube or "T" Mullion
6
1.25" x 3.188" x .265" Alum. Tube Mullion
Enter Loading Type (R or T):
7
1.25" x 3.25" x .100" Alum. Tube Mullion
R = Rectangular or Point Loaded, T = Trapezoidal/Triangular or Uniformly Loaded;
See "Load Areas" tab or approvals for examples. If unsure, use Rectangular Loading.
8
1.25" x 3.25" x .624" Alum. Tube Mullion
9
1.25" x 3.94" x .624" Alum. Tube Mullion
Mullion Design Pressures and the corresponding Anchor/Clip Capacity required are show in the table to the right. Choose a specific mullion that exceeds your opening's Design Pressure.
10
2" x 4" x .25" Alum. Tube Mullion
11
2" x 6" x .25" Alum. Tube Mullion
Enter Mullion Type (1-13):
Max. Design Pressure is:
psf
Load on Mullion Anchors is:
lbs
12
3.25" 30 Degree Alum. Bay Mullion
13
3.25" 45 Degree Alum. Bay Mullion
Optional Design Pressure Reduction:
If your Mullion's Design Pressure is much higher than what your structure's opening actually requires, you may reduce the Mullion's Design Pressure. This lowers the anchor capacity required and could give you additional anchor options or require less anchors.
Enter Reduced Mullion Design Pressure:
psf
Your reduced Anchor Capacity required is:
lbs
Knowing Your Anchor Load Requirement, you can now choose the most appropriate Anchor & Clip Type from the table below. See the Approval for complete mullion installation instructions.
""
Substrate:
3k Concrete
3.5k
Conc.
Hollow CMU
Filled
CMU
PT Wood
Metal
Anchor Type:
3/16" DeWalt
Ultracon+
1/4" DeWalt
Ultracon+
5/16" Elco Ultracon
3/16" DeWalt
Ultracon+
1/4" DeWalt
Ultracon+
1/4" SS DeWalt AggreGator
5/16" Elco Ultracon
1/4" SS DeWalt AggreGator
#10
Steel
Screw (G5)
#12
Steel
Screw (G5)
#12
Steel
Screw (G5)
Edge Distance (in):
1"
2-1/2"
1"
2-1/2"
3-1/8"
1"
2-1/2"
1"
2-1/2"
2"
3-1/8"
2"
0.48"
0.54"
0.324"
Embedment (in):
1-3/4"
1-3/4"
1-3/4"
1-3/4"
2"
1-1/4"
1-1/4"
1-1/4"
1-1/4"
1-1/4"
1-1/4"
2"
1-3/8"
1-3/8"
varies
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* Indicates that the Clip & Anchor option does not meet the minimum capacity required for the mullion's required Design Pressure. It may be possible to input the Min. Required Design Pressure in the Optional Design Pressure Reduction section above to obtain more favorable anchor/clip options. N/A indicates that the anchor's tested spacing prohibits its use in this instance regardless of Design Pressure.
** For installation into metal, see the Approval for metal type and thickness required.
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