GrowIT® High Arch Greenhouse

Model #70560
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Product Overview


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 High Arch
Width 13
Length 20
Height 12
Material Polyethylene 5.5 oz
Fabric Color Translucent
Peak Height (ft.) 12 ft.
Wall Height (ft.) 6 ft.
Zipper Width at Bottom 10 ft. 4 in.
Zipper Width at Top 8 ft.
Side Zipper Height 8 ft.
Valance No
Waterproof Yes
Water-Resistant Yes
Fire Rated No
Warranty 1 year
Storage Bag No
Hardware Kit Yes
GrowIT® High Arch Greenhouse is rated 3.1 out of 5 by 14.
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
Rated 5 out of 5 by from Great Greenhouse This is a great greenhouse. We built a wooden frame, leveled the ground filled it with sand and put paving stones down for a floor. When we assembled the greenhouse we screwed the tubes to the wooden frame. The greenhouse has withstood winds of 40,50 mph with out a single problem. It has excellent cross ventilation and our plants have been protected from the cold down to the low teens with just a small heater.
Date published: 2017-01-15
Rated 5 out of 5 by from No more veggies for the deer Great little greenhouse - easy to put up. looks nice in the yard and is pleasant to work in. Unless the deer learn to low crawl or unzip the door looks like we might get more peppers, tomatoes and herbs than they will for a change. Only thing that could make it better would be a zipper window on each side.
Date published: 2016-06-06
Rated 4 out of 5 by from Held up to WY winds I've had the 10x10x8 greenhouse in a bag for 3 seasons now with no problems. It's not uncommon to have 50+ mph winds here in Wyoming. This year the zipper ripped out on both sides of the door. Gonna reorder the cover as the frame is still in excellent condition. With the high winds I went out and bought better ground anchors cause I didn't have enough confidence the ones that came with would handle the winds here.
Date published: 2016-10-15
Rated 4 out of 5 by from Go bigger.... I bought this unit 6 years ago and it has stood up fairly well. Sloughed off a 14" snowfall with aplomb the first season.... ...but a few caveats. As with storage buildings, greenhouses - and maybe yachts - buy larger. Mine is used as a 'temporary' greenhouse and overflow from the regular greenhouse for plants that just need to be kept from freezing. Consider the height.... Secondly, I wish ShelterLogic offered replacements for single pieces. Though all parts/panels are labeled with individual part numbers, it is not possible to buy just one. The cost for full fabric replacement is almost equal to the full kit price.
Date published: 2016-09-15
Rated 4 out of 5 by from Great way to get a greenhouse without spending a l I needed a way to protect my vegetable garden from cold temps and hail. I didn't have time to find and build a permanent greenhouse and didn't have a lot of money to spend. The Greenhouse in a Box was the answer. It's sturdy enough to be a permanent greenhouse (although I needed to use extra anchors because it's very windy where I live). The only issue I had was the instructions. I don't like pictures-only instructions. In several cases it took a long time to figure out what to do. In addition, the estimate of two people and two hours for assembly is way off. It took two pretty handy people about 6 hours to put it together. My plants are very happy now.
Date published: 2016-07-01
Rated 4 out of 5 by from Happy customer Greenhouse is great lasted 4 years in Florida sun Needs new cover only
Date published: 2016-06-12
Rated 4 out of 5 by from Nice size I bought this to protect two Mexican lime bushes. Cold weather damages the bushes. I was able to put this greenhouse over the two bushes during the colder weather. It worked well and the bushes kept their leaves through winter. I was able to harvest limes into 2016.
Date published: 2016-05-21
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What is the difference between this greenhouse and the Accelaframe HD Greenhouse?

Asked by: Customer1
Hello, The Accelaframe greenhouse has a much quicker assembly time than our standard greenhouse. It has a stronger frame assembly and less parts overall. Also, the Accelaframe greenhouse is 12ft wide x 20ft long x 9ft high while model 70590 is 12ft wide x 20ft long x 8ft high. If you would like to see a video on how the Accelaframe is assembled, please click on the support tab and it will be the first video that appears. If you have any additional questions, please let us know. Thank you
Answered by: ShelterLogic
Date published: 2017-02-14

Do you offer a replacement cover for MODEL #70593? Couldn't find one for this model on your site.

Asked by: Scott69
Hi Scott, Yes the replacement cover kit for model 70593 is available. The cost is $389.99 plus shipping. If you would like to order, or have any additional questions please give us a call at 1800-932-9344. Thank you
Answered by: ShelterLogic
Date published: 2017-02-07

do you have replacement parts available, such as the the metal braces for the 70658 10x20x8 greenhouse.

Asked by: ataltman
Hello, Yes replacement parts are available for this greenhouse. Please give us a call at 1800-932-9344 so we can better assist you. Thank you!
Answered by: ShelterLogic
Date published: 2017-02-03

how many sq. ft in a shelterlogic greenhouse 10x20x8

Asked by: hobo1
Hello, Our 10x20x8 Greenhouse (Model 70658) has 1,236 cubic feet of storage space. If you have any additional questions please let us know. Thank you
Answered by: ShelterLogic
Date published: 2017-01-31

How much is a replacement cover for the 70600 model? 6x8x6? Mine lasted few years and then the wind just took it away...thanks!

Asked by: Colleen730
Hi Colleen, Sorry to hear that happened. The cost of the replacement cover for model 70600 is $89.99. If you would like to order, please give us a call at 1800-932-9344 and we would be happy to help. Thank you!
Answered by: ShelterLogic
Date published: 2017-01-31

After reading reviews, I'm concerned that each end panel does not reach flush with the ground once assembled on the 10'x20' heavy-duty greenhouse. Can you confirm this? I need a seal-able greenhouse.

Asked by: Alex thomas
Hi Alex, The end panels are designed to come very close/flush to the ground but do not sit directly on the ground to avoid wear to the bottom of the panel on windy days. Depending on assembly, you could have a 1-2" gap between the bottom of the panel and the ground. If you have any additional questions, please let us know. Thank you
Answered by: ShelterLogic
Date published: 2017-01-09

How high do the sides role up on # 70590. Also what is the R-values and U-values for your poly? What is the quality difference between the heavy duty (70590) and the greenhouse-in-a-box?

Asked by: Alex thomas
Hi Alex, The side roll up approximately 8" on the sides. The heavy duty greenhouse (model 70590) comes with a 1 5/8th diameter frame while the greenhouse in a box is 1 3/8th in diameter. Thank you
Answered by: ShelterLogic
Date published: 2017-01-06

Do you make a replacement top cover for the Growit Greenhouse, how do I order one, how much are they?

Asked by: TC123
Hello, we do have a cover kit available for this model. Please give us a call at 1800-932-9344 and we will be happy to assist you with this. Thank you.
Answered by: Ana DaMata
Date published: 2016-12-27
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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.