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  • GM13 - Grow More 13' x 13' Greenhouse Kit - 2533220
  • GM13 - Grow More 13' x 13' Greenhouse Kit - 2533220
  • GM13 - Grow More 13' x 13' Greenhouse Kit - 2533220
  • GM13 - Grow More 13' x 13' Greenhouse Kit - 2533220
  • GM13 - Grow More 13' x 13' Greenhouse Kit - 2533220
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GM13 - Grow More 13' x 13' Greenhouse Kit

Item #: 2533220
This item ships by FREIGHT TRUCK
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(not available to AK and HI)
Price: $4,149.00
    Availability:
    Availability: In Stock - Usually ships in 2 to 4 days.
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    Grow More greenhouses feature a heavy-duty tubular aluminum frame, superior 10mm triple wall polycarbonate panels, commercial grade hinged doors (1 Dutch door standard on all models), a built-in gutter system, and plenty of roof vents for maximum air circulation. Combine that with the Fast Click system that drastically reduces assembly time and a price hundreds less than any similarly equipped greenhouse, and you have a package that is hard to beat!

    Enjoy the light diffusion and beauty that polycarbonate affords without the fear of breakage and drastic temperature changes experienced in glass greenhouses. The beautiful black painted aluminum frame on the Grow More greenhouses will blend in well in any location. Grow More greenhouses are rated for winds up to 70 mph and snow loads up to 25 lbs. per square foot.

    The GM13 shipped weight is 661 lbs. and comes packaged in 6 boxes. Dimensions are:
    90" x 13" x 12",   104" x 13" x 10",   95" x 13" x 9",   56" x 41" x 4",  and  60" x 41" x 4" (x2)

    Each extension adds 201 lbs. and 2 boxes. Dimensions are:
    96" x 13" x 9"  and  61" x 41" x 6"

    Grow More Greenhouse Features

    • Easy assembly
      Fast Click system simplifies install and cuts assembly time in half
    • Long-lasting rustproof design
      All aluminum frame & stainless steel hardware
      No cheap plastic connectors that break in high winds or aluminum hardware that strips when trying to tighten it!
    • Large roof vents for maximum natural ventilation
      GM8: 4 large 30" x 26" roof vents (over 5 sq. ft. each)
      GM10: 4 extra large 38" x 31" roof vents (over 8 sq. ft. each)
      GM13 & GM16: 4 XXL 38" x 42" roof vents (over 11 sq. ft. each)
      Each extension comes with 2 additional roof vents
    • Sturdy hinged door with catch
      Wide hinged Dutch door made of aluminum and polycarbonate
      13' & 16' wide models come with 2 hinged doors (1 Dutch & 1 Full)
      Model #s ending with D have doors on both end walls
    • Insulated 10mm triple wall polycarbonate
      The best mix of strength, insulation, and light transmission in the industry
    • Expandable
      All Grow More greenhouses can be extended to meet your needs
      Multiple extensions can be added to any Grow More greenhouse
    • Rain water collection
      Built-in gutters with downspouts
    • Anchoring
      Mounting brackets and hardware are included
    • Ease of mind
      Limited lifetime warranty on frame & 10 years on the covering

    Greenhouse Options

    Door Option
    The GM13 comes standard with double doors on the front end wall. This greenhouse is also available with the same double doors on both end walls for an additional cost.

    Ventilation
    Grow More roof vents come standard with manual openers. Upgrading to automatic roof vents adds 4 Univent auto openers (1 for each roof vent) which automatically open and close the roof vents based on temperature. If you order extensions with your greenhouse, you will need to purchase Univent auto openers for them separately.

    Extensions
    Extensions are available for all Grow More greenhouses. Each one adds 6 1/2' to the length of the greenhouse and 2 additional roof vents. There is no limit to how many can be added. Click here for more information about GM13 extensions.

    Grow More Greenhouse Video   Customer Video

    Here is a video of a GM13 Grow More greenhouse from one of our customers on Instagram. Take a look at all of the beautiful plants they are growing in the middle of December.


    Grow More Greenhouse Dimensions

    Grow More Outside Dimensions
    Model
    Width
    Length
    Height
    Side Wall
    Door
    GM8
    8' 7/8"
    10' 8 3/8"
    7' 5"
    5'
    71" x 30"
    GM8ext
    8' 7/8"
    5' 3 3/8"
    7' 5"
    5'
    n/a
    GM10
    10' 1/2"
    13' 3 7/8"
    8'
    5'
    71" x 37"
    GM10ext
    10' 1/2"
    6' 6 3/4"
    8'
    5'
    n/a
    GM13
    13' 3 7/8"
    13' 3 7/8"
    9'
    5'
    71" x 77"
    GM13ext
    13' 3 7/8"
    6' 6 3/4"
    9'
    5'
    n/a
    GM16
    16' 7 3/16"
    13' 3 7/8"
    10'
    5'
    71" x 77"
    GM16ext
    16' 7 3/16"
    6' 6 3/4"
    10'
    5'
    n/a
    Models ending in "ext" are extensions for that model Grow More greenhouse.

    Product Manuals, Tips, Specs, & Guides

    Grow More GM13 Instruction Manual (Current)
    Grow More GM13 Instruction Manual (2022 - April 2026)
    Grow More GM13 Instruction Manual (2021 & older models)
    Grow More GM13D Instruction Manual (2022 - April 2026)
    Grow More GM13D Instruction Manual (2021 & older models)
    Greenhouse Construction & Operation Tips - Helpful tips to save you from making common mistakes when installing and operating your greenhouse.
    How to Build a Foundation - Includes instructions for building 3 of the most common types of foundations for your greenhouse.
    Greenhouse Heater Size Calculator - Need a heater for your greenhouse but not sure what size to get? Just use our heater calculator to find out!


    Grow More Base Dimensions

    Product Manuals, Tips, Specs, & Guides

    Grow More GM13 Instruction Manual (Current)
    Grow More GM13 Instruction Manual (2022 - April 2026)
    Grow More GM13 Instruction Manual (2021 & older models)
    Grow More GM13D Instruction Manual (2022 - April 2026)
    Grow More GM13D Instruction Manual (2021 & older models)
    Greenhouse Construction & Operation Tips - Helpful tips to save you from making common mistakes when installing and operating your greenhouse.
    How to Build a Foundation - Includes instructions for building 3 of the most common types of foundations for your greenhouse.
    Greenhouse Heater Size Calculator - Need a heater for your greenhouse but not sure what size to get? Just use our heater calculator to find out!


    Grow More Base Dimensions
    Overall Customer Rating of 12 Reviews:
    review-star review-star review-star review-star review-star

    Great greenhouse, great value

    I’m a horticulturist who has owned a couple hobby greenhouses at home over the years. I’ve worked in and around a number of others. This kit offers above-average build quality with better insulation and far better venting than the vast majority of kits I see. And, it does so at a fraction of the cost of kits that offer similar. No brainer. Only gripe would be that a couple of the steps in the instructions are not great but with some patience you will figure them out. Base and foundation preparations took a few days (did everything by hand on an uneven site) and greenhouse assembly took about two days for a pair of us, so estimates on time commitment were very fair. We assembled GM13 D. Very happy with the product and the value.

    Grow More 13' x 13' Greenhouse

    Absolutely in love with my 13x13 Grow More Greenhouse. It's going to be utilized as a hobby house for all my Aroids and to grow a few veggies. Glad I did my research and found ACF Greenhouses.
    review image  

    2nd Grow More Greenhouse

    This is my second Grow More greenhouse. Very solid, stable greenhouse. I assembled it by myself. Hardest part was the ridge line (a second person would make it easier). All the parts lined up perfectly. However, 3 of the 6 window vents were misaligned, so light and water could enter when they were closed. Windows could use a little redesign to allow a better fit with some "give" to make up for some misalignment. I changed the door handle to be a standard screen door latch, but the door frame is just a little bit too wide to accommodate the standard latch parts, so I had to improvise. I added a section to the 13x13 Grow More to make it a 13x20, but the non-sloped gutters are then too long to drain water completely to the two ends. They should add a middle downspout for extensions. One side panel at the front right side did not go in straight, so I had to trim the polycarbonate to allow the gutter to fit.

    Great greenhouse

    I ordered the Grow More 13 foot greenhouse with an extension and extra double door. It is a very stable construction and definitely sturdy enough to hold up to the elements. After the foundation was complete, my husband and I put up the greenhouse in about 2 days. It went together easily overall and I like the way it is put together. It did take a little getting used to the directions since there is nothing written - it's only pictures. There were a few missing pieces, but nothing that required us to stop building and ACF Greenhouses shipped out the missing parts within 24 hours after I called them. I'm excited to see how it performs throughout the year. All in all I'm very happy with my decision to get this greenhouse and would definitely recommend it. I think it is a tremendous value for the money. If, at some point in the future, I decide I need a 2nd greenhouse, I will buy another one of these.

    Greenhouse Pictures

    Here are some pictures of my greenhouse install. Very satisfied with quality of the greenhouse.
    Concrete was poured with a good runoff slope, had some door alignment issues, but all is good now.
    Thanks!
    review image   review image   review image  

    Outstanding greenhouse

    I purchased the Growmore 13 x 13 greenhouse with an extension. I am very pleased with this greenhouse. I think for the money, it is incredibly well-built And a real bargain. Everything fit together very well with very few problems installing it. I was a little intimidated by the instruction booklet and the mountain of parts. But once I start putting it together and realized that the parts were organized by box number and all of the parts were nicely labeled, I took a deep breath and started putting it all together. There was a little bit of learning curve but once I started, it really flowed. Three of us put it together in one day. But that was after I put the base down. It’s quite a learning curve I took me three hours to put the base down but I could probably redo it in about 30 minutes. The key to installation was getting the base perfectly level. I used six by sixes on concrete piers and a laser level. It was absolutely flat and I think that aided greatly in the installation. Instruction manual is not very good, but once you get the hang of it does make sense. Pay close attention to the orientation of the parts. In the future, hopefully they’ll have photographs and a video as well that would be extremely helpful. Customer service is wonderful, Erik was very patient with my questions and very helpful. In short I would highly recommend this greenhouse, it’s only been up for a day but it seems to be very solid and weatherproof. If you have some trepidation about purchasing this one, go ahead and buy it you won’t be disappointed…
    review image   review image   review image   review image   review image  

    Great greenhouse

    Once put together, it looks and functions beautifully. It definitely helped to have 2 people for installing the larger panels. The people at ACF were extremely helpful and informative, and took care to make sure everything was perfect.

    Love my new greenhouse!

    All the parts and pieces arrived in great condition. The paint job of the frame material is outstanding. Some of the assembly instructions are a bit vague but assembly was pretty intuitive. I’m impressed with all the added cross bracing and the thickness of the frame. Overall I am extremely satisfied with this greenhouse.
    Features I really like about the Grow More greenhouse:
    1. The quality and sturdiness of the frame and covering are far superior to the Palram greenhouse I am replacing. No worries about high winds blowing a panel out of this thing! That was an ongoing issue with my previous greenhouse.
    2. The roof vents are huge. These monsters really let in a lot of fresh air even with the doors closed. I noticed it does not heat up nearly as quickly as my previous one.
    3. I have large potted plants that have to be transported by cart and wheelbarrow in soil for my raised beds. The roomy double doors make these tasks much easier. They are plenty sturdy, and the Dutch door is nice for added ventilation. I would have preferred the option to lock them though. I may just pick up a gate type latch locally if the need arises.

    Exceeded my expectations

    I was a little hesitant at first when I found the grow more greenhouses. The price was much lower than other similar size offerings I looked at and this one came with heavier duty panels than the rest. I'm glad my husband and I decided on this though! It is very well made and assembly was not overly complicated. We were able to put it together over the weekend with very few issues. We look forward to many years of fun in the greenhouse. Thank you ACF!

    Pretty good

    I live in south central Texas, and we get a few hard freezes each year. Because of the exceptionally long freeze we had in Feb 2021, I decided to get a greenhouse to protect some of my plants. I purchased the smaller version of this greenhouse in the past and was very happy with it, so I decided to upgrade to a larger one. This 13 x 13 is the perfect size for me. It can hold quite a lot of large pots with plenty of room for shelving etc. The panels are thicker than anything else I found online. Unfortunately there are a few things I didn't like. The instructions are pretty bad. It's all pictures, and some little details aren't completely clear. We had to redo a few things once we caught the mistakes. Once built, it seems sturdy and looks nice. The other thing that I really don't like is that the operable panels on top don't seal properly when closed. There seems to be other areas of gaps that create some drafts too. Fortunately our freezes tend to only drop to the high 20s, so the temperature is still okay. If I lived in a colder environment, this would definitely be an issue. Today when the outside temperature was about 45 due to a cold front, the greenhouse was about 55. Properly sealed, I think it should be at least 10 degrees higher. The poor sealing was not an issue with my previous smaller model. I plan to use flexseal or some other product to seal off any areas where warm air is escaping and readjust the ceiling panels. Overall I really like the greenhouse; but for the price paid, it really shouldn't have these issues.

    Read all reviews!
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