If this info helps ill will be using either mylar or a flat white paint application to the walls, it will be around 25-30 sq feet as i will have 24 plants in five gallon buckets which are a foot in diameter and they will be as close as possible, i will be using canna nutes (growforce) grow and bloom nutrients at as far as i can ramp up without burn, ummmmm thats about all i can think of, i will be growing in a combination ofgrowing/flowering soil mixed with moisture control water holding soiling and perlite actually ill probably grow one more strain just so i can get an even 5x5 square,which would be around 25-30 feet, with a light rated to grow in a 50 sq foot space.