You'd be better off taking all the shelves out except the bottom one. Don't cut any holes.
Use the bottom for veg, and use the rest for flower.
psteve Reviewed by psteve on . Bookcase nd multiple harvests ok so i came up with this idea of growing in a bookcase.first off, on every shelf set up lights.cut a hole in the shelf to train your plants through.now once it grows to the top shelf, change the lighting cycle on only that shelf and cause the upper portion to bud.remove the shelf, re vedge to the top of the case and bud again.repeat the process.heres a pic.:thumbsup: Rating: 5