Name: Canopia by Palram Grand Gardener 20.9-ft L x 8.7-ft W x 7.8-ft H Green Frame/Clear Panels Greenhouse Kit
Brand: Canopia by Palram
SKU: 5013727401
Price: 3931.44 USD
Availability: InStock
Rating: 4 (47 reviews)

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The Grand Gardener Greenhouse features a chic barn shape and a windowpane design making your greenhouse gorgeous even before you’ve planted anything.The emphasis on safety is evident from the heavy-duty frame to the extremely safe polycarbonate panels. The sturdy, weather resistant and UV-protected extruded resin frame with its aluminum roof profiles improves both full-insulation and durability. The crystal-clear polycarbonate side walls give you clear views while the twin-wall roof panels diffuse over 80% of sunlight for a soft, even light. The attention to detail continues through the design of the roof which provides ample headroom and more space to garden to the double doors that make it easy to go in and out, even with large trays of plants. There is also excellent ventilation due to the roof vent, which provides airflow and retains heat when the doors are closed. We keep it simple with a pin and lock assembly making the Palram - Canopia Grand Gardener Greenhouse perfect for the growing enthusiast who wants something easy and beautiful! Product assembled measurements: 250.9 inch L x 104.2 inch W x 93.8 inch H.

PVC resin frame gives you the strength and durability of meta
Extruded resin frame with rubber sealing strips improves insulation and helps create uniquenurturing conditions
Barn style design provides ample headroom, giving you more space to work
Tall and wide double doors for easy access in and out of the greenhouse
Engineered to withstand severe weather conditions, such as heavy snow loads (15.4 lbs/ft) and high winds (56 mph)
Two different types of virtually unbreakable glazed polycarbonate panels : Twin wall roof panels protect from strong sunlight and Crystal-clear wall panels provide over 90% light transmission
Efficient cooling due to roof vent (8x8- one vent, 8x12- two vents, 8x16- three vents, 8x20- four vents)
Quick and easy DIY installation with a push fit assembly - no tools needed

General
Color/Finish Family	Green	Maximum Wind Resistance (MPH)	56
Manufacturer Color/Finish	Green Frame/Clear Panels	Number of Windows	4
Series Name	Grand Gardener	Wind Rating (MPH)	56
Type	Greenhouse Kit	Water Resistance Level	Water resistant
Frame Material	PVC	Snow Load	Less than 50-lbs
Number of Vents	4	Door Type	Double door
Panel Material	Polycarbonate	Number of Doors	2

Dimensions
Door Opening Height (Inches)	75.7	Length (Feet)	20.9
Door Opening Width (Inches)	46.5	Width (Feet)	8.7
Height (Feet)	7.8

Features
Floor Included	No	UV-Protected	Yes
Shelves Included	No

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	7-year limited

Miscellaneous
UNSPSC	30201500

Check out the Best Selling Greenhouses on Lowes.com

Review

4 out of 5

47 Reviews

0% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The greenhouse is well-constructed and aesthetically pleasing, allowing customers to extend their growing season. However, some experienced issues with the assembly process and product durability, with reports of missing parts, unclear instructions, and weather-related problems. Prospective buyers should carefully consider the product's functionality and quality based on their specific needs.

Customer review summary generated by AI, including incentivized reviews.

47 Customer Reviews

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Do not buy this product!

Would Not Recommend

I did quite a bit of research on greenhouse kits before selecting this one with 3 extensions for a full 8x20 structure. 1. Relying on the specifications in the assembly instructions (p.5) I understood the base frame was 20'11". It isn't. It is just over 20'9" with the result that the foundation I built in advance (concrete footing, cinder block knee wall, concrete-set J-bolts attaching timber frame) was too long by almost 2 inches. Furthermore, the illustration is not to scale. It shows dimensi...

DisappointedSeptember 24, 2026
From Grand Gardener 16.8-ft L x 8.7-ft W x 7.8-ft H Green Frame_SLASH_Clear Panels Greenhouse Kit

Was this Review Helpful ?

Response from Palram – Canopia Team

We’re sorry to hear about the difficulties you experienced with your Grand Gardener Greenhouse. We appreciate the detailed feedback regarding the fou... Read More

Palram – Canopia TeamSeptember 28, 2026

PalramApplications

Mostly satisfied

The greenhouse is mostly what I expected. Some parts feel less premium, but the overall functionality is not compromised. A good value for the price.

ChrisKDecember 28, 2023

From CANOPIA

Reasonable price…

I am amazed at the excellent quality of this greenhouse, especially given the reasonable price. Assembly was straightforward too!

astralquill8December 21, 2023

From CANOPIA

quality product, terrible instructions

The greenhouse itself is well-made, but the instructions were terrible. They were hard to understand and led to multiple errors during assembly.

12November 6, 2023

From CANOPIA

Mostly great, some assembly issues

The greenhouse looks great and serves its purpose well. The assembly instructions were a bit confusing, but I managed to put it together.

cosmoquasar_77October 20, 2023

From CANOPIA

Allowed me to grow food year-round

I absolutely love this greenhouse! It went together smoothly and has allowed me to grow food year-round. One of the best purchases ever.

cycloneseeker$88October 15, 2023

From CANOPIA

More Than Just a Greenhouse

Not only is this greenhouse functional, but it adds aesthetic value to my garden. The quality of the polycarbonate is outstanding, and it was easy to assemble.

radiantflux#91September 21, 2023

From CANOPIA

My Plants' New Home

The quality and design of this greenhouse are unbeatable. Assembly was straightforward, and the materials are top-grade. My plants are flourishing!

nebulaflux$9August 29, 2023

From CANOPIA

Weather-resistant

This greenhouse is perfect for my needs. Easy to assemble, weather-resistant, and the design fits my garden perfectly.

cycloneseeker_99July 30, 2023

From CANOPIA

I absolutely love this greenhouse!

I absolutely love this greenhouse! It went together smoothly and allows me to grow food year round. One of the best purchases I've made.

arcanequasar*21July 15, 2023

From CANOPIA

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COMPARE PRODUCTS

		Name	Current Item Canopia by PalramGrand Gardener 20.9-ft L x 8.7-ft W x 7.8-ft H Green Frame/Clear Panels Greenhouse Kit
		Ratings	47
		Type	Greenhouse Kit
		Length (Feet)	20.9
		Height (Feet)	7.8
Canopia by PalramPrestige with Accessory Pack 8.66-ft L x 8.66-ft W x 8.225-ft H Green Frame/Clear Panels Greenhouse	Backyard DiscoveryBellerose XL 13-ft L x 11-ft W x 11-ft H Brown Greenhouse Kit	Canopia by PalramAria 20-ft L x 10-ft W x 9.35-ft H Black Frame/Clear Panels Greenhouse Kit	Canopia by PalramBalance 32-ft L x 10-ft W x 8.4-ft H Silver Frame/Clear Panels Greenhouse Kit	Canopia by PalramAria 15-ft L x 10-ft W x 9.35-ft H Black Frame/Clear Panels Greenhouse Kit	Canopia by PalramPrestige with Accessory Pack 12.75-ft L x 8.66-ft W x 8.225-ft H Green Frame/Clear Panels Greenhouse	Canopia by PalramNatura 22-ft L x 8-ft W x 8.56-ft H Cedar Wood Frame/Clear Panels Greenhouse Kit	Canopia by PalramGlory 20-ft L x 8-ft W x 8.8-ft H Gray Frame/Diff. Panels Greenhouse Kit	Canopia by PalramGlory 16-ft L x 8-ft W x 8.8-ft H Gray Frame/Diff. Panels Greenhouse Kit
46	248		61		46		26	26
Permanent	Greenhouse Kit	Greenhouse Kit	Greenhouse Kit	Greenhouse Kit	Permanent	Greenhouse Kit	Greenhouse Kit	Greenhouse Kit
8.66	13	20	32	15	12.75	22	20	16
8.225	11	9.35	8.4	9.35	8.225	8.56	8.8	8.8