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TMG-GH2030 20' x 30' Tunnel Greenhouse Grow Tent with Transparent Ripstop Leno Mesh Tarp Cover, 12 Mil, 180 GSM, Cold Frame, Large Roll-up Windows, Peak Ceiling Roof

Original price $2,950.00
Original price $2,950.00 - Original price $2,950.00
Original price $2,950.00
Current price $2,799.00
$2,799.00 - $2,799.00
Current price $2,799.00
Save $151.00 Save $151.00 CURRENTLY IN STOCK
785.0 lb
87 x 29 x 18 inches
More Shipping Info



  • Exact floor footprint: 19.7’ (W) x 29.5’ (L)
  • Galvanized steel tube frame structure
  • Steel tubes are added on the front and end walls to keep the cover tied
  • Peak ceiling height: 10’
  • Truss arches: ⌀1.9” – 15 gauge
  • Horizontal purlins: ⌀1.0” – 19 gauge
  • 59’’ bay spacing
  • 43’’ x 78’’ walk-through door
  • Footplates with pre-drilled hole (anchor bolts included)
  • Foundation required: concrete, solid ground or equivalent


  • Leno mesh ripstop white tarpaulin, 12 mil, 180 gsm
  • Large roll-up mesh windows on both sides
  • UV coated, waterproof, transparent
  • Light transmission: ≥ 88%
  • Light diffusion: 20%
  • Life span: 48 months
  • Replacement covers available to purchase separately

Shipping Information

  • Packed in one wood crate shipping box
  • Shipping dimension: 87" x 29" x 18"
  • Shipping weight: 785 lb
Shipping from Richmond, BC

Product Description

TMG Industrial carries a wide variety of cold frame tunnel greenhouse grow tents designed for anyone from a backyard hobby gardener to a sizeable commercial produce grower. With over 30 different sizes and styles available and cover materials ranging from polycarbonate panels, ripstop leno tarps and EVA plastic films, TMG Industrial has become one of the leading cold frame greenhouse distributors across Canada and the USA. TMG-GH2030 20 x 30 feet tunnel greenhouse features a galvanized steel frame with a transparent ripstop tarpaulin cover. The cover is removable, made of heavy-duty 12mil, 180gsm leno mesh tarpaulin, large roll-up mesh windows are included on both sides allowing for adjustable ventilation and humidity control. This grow tent is perfect for seeding or protecting your plants from the outside elements, creating warmth and insulation for optimal growing conditions to double the growing seasons.

Additional Info

Engineering drawings are not available for this model.

Please check with your local municipality bylaws to ensure compliance. It is the customers' responsibility to provide any necessary drawings to obtain any permits that may be required.


We're here to support you. This product is backed with our 1-year manufacturer warranty. Customer support and spare parts are offered from our headquarters located in Richmond, BC.
Customer Reviews
4.2 Based on 5 Reviews
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Lynn M.
Canada Canada

Very good product but could use some adjustment to perfect.

We were really thrilled to get this greenhouse. We installed it in July and it is now the following February. The instructions were excellent and easy to understand. There were a couple problems with installation, the most notable being one of the poles for the top was labeled/sized incorrectly. When we laid out all the pieces and compared to the manual, we determined that a pole was labeled to fit in one spot but was the length to fit in another. We had to cut and press the end flat. We also drilled some of the holes a little larger. We found some of the bolts a little shorter than ideal and after several came loose in a windstorm and a couple of the now free poles ripped through the poly, we put in longer bolts. We also taped the outside of the tarp where the bolt ends had worn through. We found the length of rope to be insufficient and it also frayed in several places and wore through in a couple others within a few months. The latch is inadequate to hold the door closed and as the wind blew it around, the hinges bent. That being said, the structure is strong and easy to put together. There were enough screws, bolts, nuts, etc. to complete the job and even a few extra, which was very much appreciated. The poly is very good quality and I expect under normal circumstances would last the anticipated 48 months. I think as long as we continue replacing the poly, this tunnel will last for a very long time. Unfortunately, I do not have the manual in front of me or I would give the part numbers but my suggestion to the manufacturer would be to include bolts about 1/4 inch longer for the poles that attach about 5 feet off the ground on the 30' sides (those poles could also use the holes drilled a little bit larger), rounded bolt ends where they meet the poly (one could use an Allen key instead of a wrench to tighten) and more rope - maybe another 20 feet to have some extra, Overall a good product for the price.

Mohamad E.
Canada Canada

Beautiful, durable, big

So far it’s the biggest bang for your buck. Would definitely recommend this item to friends and family.

Mark L.
Canada Canada

any excellent greenhouse

Overall it is a easy system to install and only took 2 days to install.

L&B M.
Canada Canada

This Greenhouse is our new Happy Place.

We were originally quite skeptical about the design of this greenhouse but we are now super happy with it. I think our favourite feature is the plastic. It isn't just super thick but it has rip-stop! Some of the grommets aren't as sturdy as they should be but the greenhouse made it through our very windy East Coast winter just fine. ** We built ours on a concrete foundation so it's very well anchored.

Amanda K.
Canada Canada

Greenhouse review

This was very simple to install. My only suggestion would be that the rope come on a reel rather than a bundle. It got very tangled and was a nightmare to try and use once that happened. Plus there wasn’t enough of it so we had to use zip ties, which was fine too. Overall this greenhouse is amazing!

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