Height
H
 Ratio
H / h
 Weight
 Paint surface
 Paint surface
 Top edge
h1
 Gap height
h2
 Spacer plate
h3
 Bottom edge
h1
 I-x
in A-A
 I-x
in B-B
 W-x
in A-A
 W-x
in B-B
 I-y
in A-A
 I-y
in B-B
 W-y
in A-A
 W-y
in B-B
 S-x
in A-A
 S-x
in B-B
 Sectional area
in A-A
 Sectional area 
in B-B
 Sectional area
 Median
e1
 Median
e2
 I-x
 W-x min