Greenhouse Plastic Film Size Calculator




  1. Measure dimensions A, B, C, and D on your greenhouse.
    Not sure how to measure C? You can use a 100' measuring tape (usually available at a local hardware store) or take a piece of rope, throw it over the side of the greenhouse, mark it at the base on each side, stretch the rope out on the ground when done, then measure the distance between the two markings on the rope.
  2. Determine the size of film needed for the top and sides. The length and width will be A and C. We recommend adding at least 1' to each dimension. This will give you some extra film to hold onto when securing it to your greenhouse. If you want a double layer of film inflated, order 2 pieces this size
  3. Determine the size of film needed for the end walls. Use measurements B and D for your 2nd piece of plastic. If they are less than 11' each, multiply the larger number by 2, and add 1' for extra film to hold onto. This will give you enough to cover both end walls with a single layer of film or one end wall with a double layer.

Example

Greenhouse Dimensions: A=14' B=8' C=16' D=8'
Film size for top and sides = 15' x 17' (A + 1' x C + 1')
You will need to order 15' of our 20' wide plastic.

Film size for end walls = 9' x 9' (B + 1' x D + 1') x 2 end walls = 9' x 18'
You will need to order 9' of our 20' wide plastic.

NOTE: If you want to cover your greenhouse with a double layer of film, you would purchase 2 of each size film listed above. You will also need an inflation blower and jumper hoses for each end wall if you do not have them already.

Related Products

6 mil Thermal Greenhouse Film (Custom Cut) greenhouse, film, plastic, poly, custom, cut, 6, mil, uv, polyethylene, clear, thermal, wide
Price: $3.50
(1)

This is our top-of-the-line greenhouse film. It is 6 mil 4 year UV protected polyethylene film and is available custom cut to your needs. 6 mil polyethylene is the most used covering for commercial greenhouses throughout the United States. Price is per linear foot. Thermal Film Advantages Infrared Additive - Cuts heating costs up to 15% at night by reflecting thermal heat released from plants back into the greenhouse. Condensate Control - Helps keep condensation from dripping on plants by...

Greenhouse Batten Tape
Price: $8.95

Formulated to resist extreme cold and UV radiation, batten tape is designed to be screwed or stapled over greenhouse film to a wood or plastic surface securing the film to your structure. Batten tape is 3/4" wide and made of UV protected heavy gauge vinyl.

Greenhouse Poly Patching Tape poly, patch, tape, patching, plastic, repair, greenhouse polyethylene, acrylic, roll, vinyl
Price: $9.00

This heavy-duty 6 mil translucent tape is designed specifically for use with greenhouses. It is made out of UV protected acrylic, and the adhesive is UV protected also to prevent the bond to your plastic from deteriorating. Works great for patching any holes or rips in plastic or keeping plastic in place when securing it to your greenhouse. Tape's large width and extra sticky surface gives it superior holding power. Poly patching tape rolls are 108' in length and available in 10", 6", 4", and...

6 mil Greenhouse Poly Film greenhouse, film, plastic, poly, 6, mil, uv, polyethylene, clear, clear, greenhouses, commercial, year, 4, resistent
Free Shipping
Price: $235.00

Our standard polyethylene greenhouse film features five layer construction that guarantees the highest level of mechanical strength, durability, and longevity even in the most severe environmental conditions. This greenhouse film is 6 mil thick and 4 year UV protected.It features an excellent 90% light transmission and 22% light diffusion which breaks up incoming light to provide an even light to your plants with less shadow. The light diffusion feature improves photosynthesis efficiency by...