Formula for Calculating Deflection of
Bath Enclosure and Shower Door Headers
MAXIMUM DEFLECTION
= Pa/24EI (3L
2
-4a
2
Or
MAXIMUM DEFLECTION
= [P x a / (24 x E x I)] x [(3 x L squared) - (4 x a squared)]
E = 10
7
I = Moment of header
L = Length of header
a = Length divided by 2
P = Individual panel weight divided by 2
SC NUMBER
UNIT
l OR MOMENT
SC-917
340
0.39771
SC-614
340DLX
0.38740
SC-583
540
0.14593
SC-881
640
0.30294
SC-917
740
0.39771
SC-565
940
0.32208
For example
:
350 Series (60" wide x 70" tall)
Panel weight = 27.498# ea.
I = .39771
E = 10000000
L = 60"
a = 30"
Using the formula deflection = .031
