3,000 Watt Perpetual SOG Grow Design

a long time family friend has decided to let me use a 13'x15' room for a grow. i'd like to do a perpetual sog, so 4'x4' will be the mother/veg tent and 8'x8' will be the flowering room. i already have a 4'x4' gorilla grow tent but i'll need to build the 8'x8' enclosure. i want to go with building the enclosure over buying a tent in order to take advantage of co2.

this is the floorplan i've designed for the flowering room. i'll be using the ebb and flow system (flood and drain). each 2'x4' table will have 32 plants. the 3'x3' table will have 36 plants. this is because i've read 4 plants/sq. ft. is ideal for sog. i've seen people successfully run up to 40 plants but i'm going to stick with 4 plants/sq. ft. at-least the first time around. i plan to have 1 600 watter over each table and a 12k BTU mini split a/c unit. will be running co2.

I'm new to hydroponics. I'm a little confused about how to know how much nutrients you fill the reservoir with throughout the grow cycle. I know using the instructions on the bottle isn't always the best thing. Anyone have any insight on that?


so what do you guys think of this design? all input welcome! i hope i'm off to a pretty good start. criticism welcome as well! haven't grown in a while so i want to do this right.

CCCmints said:

a long time family friend has decided to let me use a 13'x15' room for a grow. i'd like to do a perpetual sog, so 4'x4' will be the mother/veg tent and 8'x8' will be the flowering room. i already have a 4'x4' gorilla grow tent but i'll need to build the 8'x8' enclosure. i want to go with building the enclosure over buying a tent in order to take advantage of co2.

this is the floorplan i've designed for the flowering room. i'll be using the ebb and flow system (flood and drain). each 2'x4' table will have 32 plants. the 3'x3' table will have 36 plants. this is because i've read 4 plants/sq. ft. is ideal for sog. i've seen people successfully run up to 40 plants but i'm going to stick with 4 plants/sq. ft. at-least the first time around. i plan to have 1 600 watter over each table and a 12k BTU mini split a/c unit. will be running co2.

I'm new to hydroponics. I'm a little confused about how to know how much nutrients you fill the reservoir with throughout the grow cycle. I know using the instructions on the bottle isn't always the best thing. Anyone have any insight on that?

View attachment 3916080
so what do you guys think of this design? all input welcome! i hope i'm off to a pretty good start. criticism welcome as well! haven't grown in a while so i want to do this right.

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One thing you have not talked about is the budget and that can dictate a lot of things.
I would not have 32 plants in a 2x4 area you only have room to keep them in dixie cups its not 4 plants per sq foot it 1 plant per sq foot a 1 gallon pot is 6.5" wide and a 3 gallon pot is 10" wide. You can put 16 plants in a 4x4 in 3 gallon pots
The areas you have marked out do not add up for instance tables 2-5 are marked 2x4 and i believe you mean 4x4 if so the 4 tables as would take up 8'x8' area the way you have it marked is 8x4 area.
Also you will not be able to veg and flower in the same room unless the veg is in a light proof tent.
I would put the veg in a tent say 4x8 for vegging plants and a area for cloning then have 2 4x4 areas for flowering and set up a perpetual grow harvesting each 4x4 area every month.
Since you are going to install a mini split ac I would plan on getting it sized if you want to run 1000w open hood for each light. That way when you want to upgrade the lighting you can easily and not have to worry about getting more ac or a new mini split.
Running co2 with a 600w over a 4x4 area I would suggest adding more light to get the full benefit of the co2.
Cob leds are more efficient and will put out more light at the same wattage. There was a ROI calculator from a led company and from what I am seeing from switching to cobs the numbers are not far off. https://chilledgrowlights.com/improved-yield-profit-and-roi-calculator-hps-to-chilled-grow-lights
Each nutrient line is different it will depend on what you are using. The recommendation on the bottles is a general guide and you adjust the amount from there by what you see from your plants it takes time trial and error.

i don't really see a point in limiting myself with a budget when the purpose is to maximize the space i have available. whatever it costs is what it costs, and i'm ok with that.

you are incorrect. a sea of green is 4 plants per square foot in 4" rockwoll cubes. i'm not using pots. why are you talking about 3 gallon pots for a sea of green? you don't even use pots.

i've re-done my floorplan. i miscalculated a bit. this is 100% accurate.

what do you mean by "getting it sized", in reference to the a/c unit?

i've heard 50 watts per sq. ft. so for the 4'x2' tables i'm getting 75 watts/sq. ft. in the 3'x3' tables i'm getting roughly 66 watts/sq. ft. and in the 3'x2' table 100 watts/sq. ft. i don't think i'll need more lighting than that, even with co2, but i could be wrong.

i will look into cob leds. i've heard great things about them, but i just want to stick to the tried and true.

thanks for responding!

CCCmints said:

i don't really see a point in limiting myself with a budget when the purpose is to maximize the space i have available. whatever it costs is what it costs, and i'm ok with that.

you are incorrect. a sea of green is 4 plants per square foot in 4" rockwoll cubes. i'm not using pots. why are you talking about 3 gallon pots for a sea of green? you don't even use pots.

i've re-done my floorplan. i miscalculated a bit. this is 100% accurate.

what do you mean by "getting it sized", in reference to the a/c unit?

i've heard 50 watts per sq. ft. so for the 4'x2' tables i'm getting 75 watts/sq. ft. in the 3'x3' tables i'm getting roughly 66 watts/sq. ft. and in the 3'x2' table 100 watts/sq. ft. i don't think i'll need more lighting than that, even with co2, but i could be wrong.

i will look into cob leds. i've heard great things about them, but i just want to stick to the tried and true.

thanks for responding!


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You are correct i misread it and was thinking scrog for some reason.
When I say get the ac sized is if you want to run 600w now over each table size the ac for 1000w over each table that way if you want to upgrade or need more ac because you want to see the difference between 600w and 1000w or cobs. A 1000w open hood needs 6k btu of cooling per hood.
One question I do have is the ac area is going to be a lung room?

qballizhere said:

You are correct i misread it and was thinking scrog for some reason.
When I say get the ac sized is if you want to run 600w now over each table size the ac for 1000w over each table that way if you want to upgrade or need more ac because you want to see the difference between 600w and 1000w or cobs. A 1000w open hood needs 6k btu of cooling per hood.
One question I do have is the ac area is going to be a lung room?

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ok i will think about getting a bigger a/c unit, it's not a bad idea at all. it will not be a lung room it will be inside the tent with the rest of the equipment. it does have the auto restart feature so it's possible i could put it outside the tent, but on my first grow that didn't work out.

Seems like it'd be mighty hard to move plants around or defoliate in a space like this.

CCCmints said:

i don't really see a point in limiting myself with a budget when the purpose is to maximize the space i have available. whatever it costs is what it costs, and i'm ok with that.

you are incorrect. a sea of green is 4 plants per square foot in 4" rockwoll cubes. i'm not using pots. why are you talking about 3 gallon pots for a sea of green? you don't even use pots.

i've re-done my floorplan. i miscalculated a bit. this is 100% accurate.

what do you mean by "getting it sized", in reference to the a/c unit?

i've heard 50 watts per sq. ft. so for the 4'x2' tables i'm getting 75 watts/sq. ft. in the 3'x3' tables i'm getting roughly 66 watts/sq. ft. and in the 3'x2' table 100 watts/sq. ft. i don't think i'll need more lighting than that, even with co2, but i could be wrong.

i will look into cob leds. i've heard great things about them, but i just want to stick to the tried and true.

thanks for responding!


View attachment 3916416

Click to expand...

Like the setup design.

Sea of green can be anything you want. It just means many single cola plants. A lot of people run sog in one gallon pots.

No biggie. Just pointing that out.

I think you have it right with flood tables.

whitebb2727 said:

Like the setup design.

Sea of green can be anything you want. It just means many single cola plants. A lot of people run sog in one gallon pots.

No biggie. Just pointing that out.

I think you have it right with flood tables.

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thanks. and ok, true. i think flood tables are the only option with this plant count. 148 plants would be running at full scale. of-course i'm going to start super small. not just going to buy all this equipment at once.

CCCmints said:

thanks. and ok, true. i think flood tables are the only option with this plant count. 148 plants would be running at full scale. of-course i'm going to start super small. not just going to buy all this equipment at once.

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Cool thing with tables is you can add as you go.