in need of grill suggestions

i have an Adire Brahma, 12 inch. i need to get a grill for it. seeing how it's excursion is more than others i was wondering if there are any grills that would cover and protect it. if not, any suggestions? i was thinking of just building a downfiring box

edit: i found this, think it will work
http://www.creativesound.ca/details.php?model=CBG-12

that should do it