Cantilevered OSB Bending in the Wind

[Artbuc]

Hope I am in the right subforum. I want to know how much a cantilevered sheet of OSB sheathing will deflect under wind load. I found the Moment of Inertia for OSB, but the units are in^4/ft. The bending equations I found use Moment of Inertia in units of in^4. The wind load will be uniform in units of lb/sq ft. Do I just look at a 1ft wide section of OSB to calculate the deflection?

To describe in more detail, I have a 4’ x 8’ sheet of 7/16” thick OSB fixed along the 4’ side with the 8’ side cantilevered out. The cantilevered32 sq ft sheet will be exposed to various uniform wind pressure. I want to know how much it will deflect at various wind pressures. I have the OSB Modulus of Elasticity but I am not sure how to use the Moment of Inertia when it is in units of in^4 per foot.

Thanks.

 

[jrmichler]

If the data source does not tell you, then you can just calculate the area moment for a rectangle 7/16" by 12" and compare to the given value.

 

[Chestermiller]

Hope I am in the right subforum. I want to know how much a cantilevered sheet of OSB sheathing will deflect under wind load. I found the Moment of Inertia for OSB, but the units are in^4/ft. The bending equations I found use Moment of Inertia in units of in^4. The wind load will be uniform in units of lb/sq ft. Do I just look at a 1ft wide section of OSB to calculate the deflection?

To describe in more detail, I have a 4’ x 8’ sheet of 7/16” thick OSB fixed along the 4’ side with the 8’ side cantilevered out. The cantilevered32 sq ft sheet will be exposed to various uniform wind pressure. I want to know how much it will deflect at various wind pressures. I have the OSB Modulus of Elasticity but I am not sure how to use the Moment of Inertia when it is in units of in^4 per foot.

Thanks.

That /ft represents per foot of width (4' in your case).