Polycarbonate Greenhouse Coverings

Posted by: gardenretreat  :  Category: Product Information

Polycarbonate

Garden Retreat sells a number of high quality all-season  greenhouses for your backyard or acreage. The “Halls” brand greenhouse kits are perfect for city backyards and come with 4.5 mm polycarbonate panels. Custom BC Greenhouses usually come with double walled  6mm polycarbonate, but you have the option of glass or a 5-walled 16 mm poly as well.

Polycarbonate looks much like corrugated cardboard and is mostly clear. We recommend this material for Calgary because it is good at withstanding hail damage, and it diffuses light evenly (rather than the magnifying effect of glass).

One side of the sheet is covered in a thin plastic film that is UV protected, so be sure to install this side facing the sun. Peel off the film and mark that side with a sharpie. If the panel ever pops out or if you remove it for any reason, you’ll know which side faces out.

 

 

Dimensions and Pricing of Bulk Greenhouse Coverings:

Item Description Price
4.5 mm polycarbonate 2’ wide sheets

Sheets come in even lengths
from 8’ – 16’
Used for replacement panels for Halls Backyard Greenhouse Kits

$2.50 / square foot
6 mm polycarbonate 2’ or 4’ wide sheets

Sheets come in even lengths from 8’ – 16’

$2.75 / square foot
8 mm polycarbonate 2’ or 4’ wide sheets

Sheets come in even lengths from 8’ – 16’

$2.85 / square foot
6 mil flexible poly Comes on a bulk roll, 20’ wide, lasts 3-5 years $4.95 / lineal foot

 

Custom polycarbonate sheet cutting is available but requires 2-3 days notice for pickup.

If you are building your own greenhouse frame and buying panels, you will need the 8 mm panels and the appropriate extrusions to attach the panels to the frame.

 

“Small h” Attaches a panel to the end piece of the frame, 8mm only $1.75 / foot
“Large H” Connects two panels,6 mm and 8 mm $2.85 / foot

 

For additional technical information, please see this document (pdf): Polycarbonate Info. Feel free to contact us if you have any questions as well.

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