GrowIT® High Arch Greenhouse, 13 ft. x 20 ft. x 12 ft.

Model #70560
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The High Arch Greenhouse is designed to extend the growing season by insulating and protecting plants. The reinforced alpine style 1 5/8 in. steel frame provides a maximum of 12 feet of overhead growing height with 10 feet of growing height throughout the majority of the Greenhouse. The GrowIT heavy-duty translucent ripstop polyethylene cover will outlast and outperform standard Greenhouse fabrics for multiple seasons of use


SKU 70560
Assembly Manual Download (PDF)
Style Arch
Material Polyethylene 5.5 oz
Frame Color Gray
Color Translucent
Door Type 2 Double Zippered Doors, Front and Rear
Size 13 x 20 x 12 ft.
Width 13 ft.
Length 20 ft.
Height 12 ft.
Rib Tubing Diameter 1.65 in.
Total Storage Area 257.77 sq. ft.
Total Storage Volume 2332 cu. ft.
Assembly Required Yes
Assembled Exterior Dimensions Width 155.02 in.
Assembled Exterior Dimensions Depth 239.45 in.
Assembled Exterior Dimensions Height 140.22 in.
Assembled Interior Dimensions Width 151.72 in.
Assembled Interior Dimensions Depth 236.15 in.
Assembled Interior Dimensions Height 138.57 in.
Door Opening Width Top 107.7
Door / Entrance Width Bottom 120 in.
Door / Entrance Height Outside 95.64 in.
Wall Height 72.7 in.
Peak Height 67.52 in.
Warranty 1 Year Limited
Wind Speed Rating N/A
Waterproof Yes
Snow Load Rating N/A
Water-Resistant Yes
GrowIT® High Arch Greenhouse is rated 3.3 out of 5 by 39.
Rated 5 out of 5 by from We love the products and easy to assemble & durable!
Date published: 2018-10-13
Rated 5 out of 5 by from Very Happy I purchased this last year and I have been so pleased with it that I purchased another one. Love my green house. Plants growing great!
Date published: 2018-06-04
Rated 5 out of 5 by from Sturdy & tough shelter for our BBQ We now have 2 Shelter Logic shelter/tents. Our 1st one, 10x20, has stood up to our heavy winds this spring and our new one, 10x10, seems to be just as strong and sturdy. We use them to protect our BBQ Smokers & Grills. Makes our life easier during the cold & heat.
Date published: 2018-05-02
Rated 5 out of 5 by from Quick and Easy Option This is my second purchase of a Grow T Greenhouse. The first I had for four years and I just needed more space this year for my tomatoes and peppers. I use a small space heater in the spring to add enough warmth at night especially since I "push" my growing season a bit (Zone 7). The four corners at the base and the bottom flaps allow cold, windy days to drop the temperature more than one might like, but on calm days heat loss is minimal. It looks GREAT, is easy to assemble, durable and its affordability has allowed me to add a second to expand my modest growing and selling business. I bought a replacement cover this spring for my old Grow T because I used it pretty hard. Replacement covers are affordable and you can expect 5-6 years from them if you take care of them better than I did,
Date published: 2018-04-08
Rated 5 out of 5 by from Great Product! bought this tent in February its now April, there were a couple parts missing, i contacted shelter logic on a Sunday, it is now Wednesday and i already have received everything i need to get my greenhouse set up! what FANTASTIC! customer service! and a very well built product! thank you!
Date published: 2018-04-04
Rated 5 out of 5 by from Thanks Very good product A+++++++++++++++++++++++++++++++
Date published: 2017-12-04
Rated 5 out of 5 by from Perfect for my tomatoes! We are going to our 3rd winter with this greenhouse and are very pleased with it. Took us quite a bit longer to erect than stated. We erected permanently by bolting to metal t posts driven into ground every other leg. We have extremely high winds to 80mph, sometimes more and didn't want it to blow away! Noting that literature says to take down in winter, we are pleased at the durability having weathered 2 whole years in the High Desert Outback of Oregon. Cover still in great shape. Highly recommend.
Date published: 2017-08-27
Rated 5 out of 5 by from Perfect! This is our second ShelterLogic greenhouse. Our first one has been through 2 full seasons and the shell is beginning to show wear. We will order a replacement for it at the end of this season. We chose this style of greenhouse over building one from scratch for several reasons, not the least of which was assembly time. We are glad we did. Our first was a 10 x 20 of the same design. They have both been easy and intuitive to assemble, quick to arrive, and quite serviceable in various seasons. The price made it possible for us to get started at least a year earlier than we otherwise would have. We did not rely on anchors that came with the greenhouse. We poured concrete footers and bolted our frame to eyelets. We live in a high wind area, which was one of the reasons we felt the need for a greenhouse. The zip vents are great, though this year we added a gable fan which we hung from the rafters inside. We chose a wider, longer greenhouse for our 2nd because we wanted to experiment with permaculture. We built a perimeter raised bed 29" high and mounted the greenhouse on it. We highly recommend ShelterLogic products, as they are of reliable quality, have standardized replaceable parts, good customer service, and extremely affordable, compared to conventional hard-sided styles.
Date published: 2017-02-11
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How high do the side walls roll up?

Asked by: Traveler
Hello, The side walls roll up approximately 8". If you have any additional questions or concerns please feel free to give us a call at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-07-27

hey I have a 10 x10 x8 needing all new covers please

Asked by: leslie333
Hi Leslie, We do have replacement cover kits available for this model (Part #90586). For more details or to place an order please give us a call at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-04-30

I'm looking for a replacement cover for the peak style 12x20x8 greenhouse.   What options do you offer? 

Asked by: JMFM
Hello, We do offer replacement cover kits for this model. If you would like another Greenhouse cover replacement that would be Part #801447. You can also get solid color replacement covers in standard, Heavy-Duty or Ultra-Duty material. For more details please give us a call at 1-800-932-9344. We are available 7 days a week for your convenience. Thank you
Answered by: Customer Service
Date published: 2018-04-23

Hi I live in California and my plants need protection from catipillilers and cut worms while getting lots of sun. Will this shelter give me the sun I need or does it block the good sun?

Asked by: JonS
Hi Jon, This shelter will definitely let in the sun your crops need to thrive. If you have any other questions or concerns please feel free to call us at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-04-19

I purchased model 70656 a little over 2years ago The main cover is starting to rip,what is the warranty period on this How much is a replacement cover 

Asked by: Ronc
Hello, This Greenhouse has a one year warranty. The replacement cover kit (main cover and end panels) is Part #90576 and costs $149.99 + shipping. For more details please give us a call at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-04-18

How the heck do you put this together? The directions are not clear at all.  Can  you create some directions with words?

Asked by: chris123
Hi Chris, We are sorry to see you are experiencing difficulty following the manual. We are constantly updating the instructions and will be using this feedback proactively. In the meantime is you have any other questions or concerns we are available 7 days a week for assembly support at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-04-18

Hello, could you tel me how much shelving is provided in the GrowIT® Greenhouse-in-a-Box 6 x 8 x 6 ft. 6 in. Does it run full legnth on both sides?

Asked by: Carrie
Hi Carrie, Unfortunately, the shelving is a separate accessory and is not included with the Greenhouse. Below we have included a link to the product page for the shelf bracket kit. http://www.shelterlogic.com/shop/sheltershelf-bracket Thank you
Answered by: Customer Service
Date published: 2018-06-14

what is the part number for the replacement cover for the 70590? The garage in the box frame I have is the same shape as illustrated. Thank you

Asked by: pzookey
Hello, The replacement cover kit for this model is Part # 90525. This will include the main cover and end panels. To place an order please feel free to give us a call at 1-800-932-9344. Thank you
Answered by: Customer Service
Date published: 2018-04-06
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Features & Benefits

Big quality features. Value priced. Learn more about this product below.

  • 1-5/8 in. / 4,1 cm heavy-duty steel frame with premium powder coat finish resists chipping, peeling, rust and corrosion.

  • Triple layer, heat bonded ripstop translucent cover is waterproof and UV-treated inside and out and designed specifically for plant growth and protection.

  • The translucent fabric allows a significant amount of diffused light to reach the plants, while reducing the amount of harmful UV light.

  • The diffused light reduces shadows and scorching to provide consistent lighting for all exposed parts of the plant, not just the tops.

  • The GrowIT fabric is a good thermal barrier providing good insulation for plants while preventing over-heating, which requires less water, ventilation accessories, and attention.

  • Roll-up side panels provide airflow and temp control. Bungee fasteners hold sides open. Hook and loop fastener strips keep sides down.

  • 15" / 38,1 cm Auger Anchors are included for proper anchoring. See included Anchor Guide for more info.