The Blackout Greenhouse poly ensures no light will reach plants until your customers want it to! Blackout Poly is the ideal covering for light-deprivation greenhouse setups and is black on one side with a reflective white outer layer to further prevent light penetration. Using blackout poly on greenhouses is found to result in improved production and increased plant yield and it is seen as a more eco-friendly growing practice.

Blackout Poly is a cost-effective solution for light-deprivation setups that provides maximum light blockage to control the photoperiod of flowering plants, creating the proper environment for flower production. Blackout Poly is an excellent way to get a quick start on a light deprivation setup as it can be easily adapted to any greenhouse setup and requires no retrofitting.

Step 1: Measure dimension A on the greenhouse frame. Dimension A will be the width measurement for the custom-cut poly. This measurement should be taken using the full length of the support beam as pictured. We recommend rounding this measurement up to the nearest foot and adding one extra foot to get a full edge-to-edge seal. Write this measurement down. 

Step 2: Measure dimension B on the greenhouse frame. Dimension B will be the length of the custom-cut poly and should be measured from the outside end of your support structure to the opposite outside end. Round this measurement up to the nearest foot and write it down.

Step 3: Using the measurements taken, let your representative know the dimensions in A x B (width x length). Once the dimensions are confirmed, your representative will provide a quoted price and estimated delivery time. Happy growing!

PRO TIP: 

To calculate the price of your custom greenhouse poly, multiply A by B to get the total square footage. Multiply the total square footage by the price per ft2 to get the total price for your custom poly.