Corner bead and materials questions

If the drywall is all hung, you do not need the j mold, you can take it back. It would have to have been used before the rock was hung. Do you have a place where the drywall butts up against something (a concrete wall, a steel column, window jambs, etc.)? L mold works in the same conditions that require j mold, but can be applied after the board is hung. If you can handle all edges with tape, corner bead, and/or caulk you won't need the L mold. It helps to make a clean, straight transition from one material to another -caulked or not

Many times it is better to have a few things to take back than to wish you had or need to go to the store to get.

(top posted for your convenience) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Keep the whole world singing . . . . DanG (remove the sevens) snipped-for-privacy@7cox.net

The vinyl stuff is used for curves, like arches and such.