Hey everyone! This is my first time posting on these forums- been lurking for awhile. My cousin and I are starting a grow over in the mid-west, we’ll be building a 50x80x12 Pole barn and framing/ greenboard drywalling three 20x40 flower rooms inside of it. We have an existing barn we will most likely convert into the dry room, so the remaining space inside the 50x80 after the three rooms will be dedicated to most likely mothers. We don’t have the money for a state of the art indoor grow.. we’ll be constantly exhausting air whilst taking in cool air from outside with HEPA filter intakes, or something as appropriate, on a dimmer of some sort to control air flow. I’ve gotten a couple of quotes, for insulation, greenboard drywall, pouring the concrete foundation.. greenboard drywall is a little expensive to line the whole pole barn + individual rooms with but its doable, and I got a great quote for concrete.. too good to be true in my opinion compared to others i’ve received. ($5,000 quote vs $28,000 4 inches thick to pour concrete; $12,800 quote vs $40,000 for building the pole barn) Any other cheaper alternatives for the floor AND walls of our grow facility? Any insight helps. Thanks
Welcome to the City. When you sign the contract look for the PSI rating of the slab to be poured and inspect the bill of lading the delivery truck will have with him against the contract. Don't pay for 3500PSI then get 2500 filled with fly ash. I planned to park an RV on one side and an old ford tractor on the other Both heavy and I didn't want the slab cracking. I had wildly varying prices and though I chose the lowest bidder I was very pleased with the job they did. BNW
they have fiber glass fibers they can put on it now too, it really strengthens the mix, watch them because they are gonna add a bunch of water to come along it to the back of the pole barn , best bet to pour concrete first after setting poles , make them pull that wire up too ,the will cheat ever y step they can. i know these things first hand experience, when you have a truck dumping mud and finishers yelling get it off me pulling a straight edge , the wire is the last thing on your mind. as brass mentioned 3500 is the number and should be a 4inch slump when it comes out to the job site, adding the fiber with water will come out runny but in a matter of 30 minutes you cant hardly trowel it , there is also plasticide additive if your in cold weather, i have poured out mud with snow on the round and trucks barley making it to the job site from ice, make sure your forms have no holes , because using it, the mud comes out like water and will be able to walk on the slab in 30 minutes, the plasticide and fibers mixed will be a heck of a strong slab
Appreciate both the replys- do you guys know if greenboard drywall will be our most economical option? I’d look into other wall materials but for the purposes of grow rooms I’m not sure what my options are besides that.
i cant say, i never used it, but know this much ,insulation has tripled in cost the last 2 years, i have a basement ceiling that had water pipes break last christmas the ceiling is still sheetrock less and insulation, best bang i seen for your buck is spray in insulation , most box store rent them free if you buy there insulation. are you talking about 6 inch thick walls as the 6x6 post are
I actually have a great quote on insulation, spray foam like you said does seem to be the biggest bang for your buck at the moment If anyone who has an indoor grow room wants to chime in on what will work for walls/ceiling other than greenboard drywall, that’d be a massive help.
Good luck to you guys, I priced a 25x75 all said and done with all the equipment it was well in the $200,000 range. How much are your licenses in your state, I’m sure your looking at 500-1000 plants Sent from my iPhone using Grasscity Forum
Love how you're thinking through all the details. One thing I’ve found super helpful when working on projects like this is checking out different ideas and designs online. Have you looked at scottsofthrapston.co.uk? They’ve got some pretty sweet designs and might give you a bit of inspiration or new ideas. As for your design, I think the open layout is a great call. It gives you flexibility for whatever you want to use it for, whether it's storage, a workshop, or even just a hangout spot. Maybe consider adding some skylights or big windows if you're looking for natural light – makes a huge difference. Also, think about ventilation, especially if you're planning to spend a lot of time in there.
The green board you will want to use, it is for places where moisture is and will prevent a mold problem unlike regular sheet rock.