Drywall – Types of Drywall for Different Applications

drywall

Can someone help me figure out type of drywall I need to buy to cover wooden beams in picture?

1st picture gives you view from the far.
In 2nd picture, I have zoomed in the area inside red rectangle in 1st picture.

In 2nd picture,
C is wood.
B is thick drywall but I am not sure about what A is. Is it part of drywall ? I have never seen anything like this. I need to buy similar piece of drywall and cover that wooden beams.

1st picture:

2nd picture

3rd picture

4th picture

5th picturw

3rd picture shows cross section view of all layers.

4th and 5th picture shows how piece of layer A look like.

Best Answer

You can wrap the beam with a number of different sheet materials. You're not limited to drywall - but that will work too. The key is to select a material closest to the existing wall board thickness. You are trying to match that thickness.The finish mud and tape will stick to plywood (for example) as well as paper covered gypsum sheets. Drywall is commonly used because it is inexpensive, not because it has any desirable structural characteristics.