Found this online...kinda gives the basics.
Learn all you need to know about vertical growing
Vertical growing is a modern trend in the cannabis cultivation community that is a very effective means of growing.
It is, indeed, the most space efficient way to grow marijuana.
The whole idea to the cram as many plants as possible into the smallest space possible.
So how do you go about that? Well a table with a light above it sure doesn't sound very effective. Growing smaller plants on shelves? Better, but we can one up that.
How about growing your marijuana plants horizontally on shelves. That is the whole idea behind vertical growing. You have a high-wattage light source, with no reflectors, completely surrounded by plants.
Usually, a grower will have a tube running from the floor to the ceiling containing HID lights. Usually they will use 2400-4000 watts, and 3-4 600-1000 watt bulbs running through the tube. This tube gets very hot, so you need to air-cool the light with a powerful fan, something on the order of 650 cpm or more.
The shelving surrounding the light tube is often a 7-sided octagon, with one side left open so you can access inside the structure. You can use a square or anything else you want...but the octagon seems to be the best way to get a lot of plants and even light distribution between the plants. 3-4 shelves is best. The plants are generally cocked up a 45 degree angle. and allowed to grow horizontally naturally as they grow toward the light.
This can be done with soil or with a variation of an ebb-and-flow hydroponic system. If using soil, naturally you'll be doing more work in the long run, but you can construct the shelving pretty easily with wood.
Most marijuana growers use a hydroponic system. If you're growing in such a modern way, why go back to the stone age for the medium?
For a hydroponic setup, you'll need a reservoir able to hold at least 100 gallons of water. You'll need powerful pumps, about 750 gph for the higher shelves, and at least 350 for the lower shelves. The shelves should be hollow, as you'll be running water through them. You could make these out of PVC piping. You'll need an entry point for the hose on each level of shelving, and 3-4 holes on top of each straight section of tubing for the plants. You'll need to make a drain for each shelf too.
No need to get too complicated, I would use seperate pumps and for each level of shelving...but it would certainly be possible to only pump to the top level and allow it to trickle down slowly to each level, until finally exiting through the bottom level.
You can fit the holes you've made in the tubing for the plants with pots that have slits or holes and use a medium like expanded clay pellets, or you can skip pots entirely and simply use rockwool.
To give you an idea of what your system could look like, check out this hydroponic vertical growing system. The hydrogon system has a great design for vertical hydroponic growing. It's hard to find stackable light tubes, so while they are very expensive, when I eventually do my own vertical grow...I'll probably get my light tube from them.
However, they charge over $2000 for the hydrogon system. You could probably make something pretty easily that looks similar for $200-300. In you happen to be rich, go ahead and buy one. Otherwise, make one like the rest of us. If you're too lazy to make one...you probably should'nt be growing indoor marijuana. It's quite a bit of work.
The ultimate growing system, in my opinion, is a hydroponic vertical growing system, with a screen of green between the plants and the light tube. Hopefully I'll have one in a year or so.