Type 3 Barricades – What’s in a name?

Where did type 3 barricades get their name from?  Well, the number stands for the number of sheeted boards.  For example, a type 1 barricade has one board that is sheeted (though it could have two boards, since the second board isn’t sheeted it’s still considered a type 1).

A type 2 barricade can look  just like a type 1, however two of the boards would be sheeted.  The type has nothing to do with the level of sheeting.  The three is also a flat barricade where the one and two have an ‘a-frame’ shape.