FAQ Knowledge Articles

Marvin will not mull two doors together.

It is recommended that doors be installed in separate openings to allow for any adjustments that need to be made to keep the door operating optimally.  Generally, a pair of 2x4s or steel is recommended between doors when creating openings in the field.

An option for this situation is a door with up to four panels in one frame.

For more information, see:
What kind of mulling does Marvin offer?