How to make a greenhouse with plastic sheeting

on October 26, 2023

Greenhouses are an excellent addition to any garden, allowing you to extend your growing season and provide a controlled environment for plants. Building a greenhouse with plastic sheeting is a cost-effective and relatively simple way to create a space that nurtures your plants. In this article, we'll guide you through the process of constructing your very own greenhouse with plastic sheeting.

Materials and Tools

Before you begin, gather the necessary materials and tools:


  1. Pressure-treated lumber or galvanized steel tubing for the frame.
  2. UV-resistant greenhouse plastic sheeting.
  3. Nails or screws.
  4. Hinges and handles for doors.
  5. PVC pipe or metal conduit for the support arches (if using a hoop-style design).
  6. Greenhouse plastic clips or wiggle wire for securing the plastic to the frame.
  7. Bricks or cinder blocks (for the base).
  8. Foundation anchors (optional).


  1. Measuring tape.
  2. Saw.
  3. Hammer or screwdriver.
  4. Drill.
  5. Plastic sheeting cutter.
  6. Level.
  7. Staple gun (optional but helpful).

Step 1: Choose a Location

Select a suitable location for your greenhouse. It should receive ample sunlight and have good drainage. Additionally, consider prevailing winds and nearby structures that may offer some protection.

Step 2: Prepare the Base

Clear the area of debris and level it as much as possible. Use bricks, cinder blocks, or a concrete foundation to create a solid base for your greenhouse. Make sure the base is level and secure, as this will provide stability to the structure.

Step 3: Frame Construction

The frame is the backbone of your greenhouse. You can use pressure-treated lumber or galvanized steel tubing for this. The choice depends on your budget and personal preference.

  1. Measure and cut the frame components to the desired lengths. The dimensions of your greenhouse will determine the number of pieces required.
  2. Assemble the frame on the prepared base. Use screws or nails to secure the pieces together.
  3. Ensure that the frame is square and level, as this will prevent issues later on.

Step 4: Hoop-Style Design (Optional)

If you're opting for a hoop-style greenhouse, you'll need to add arches for extra support. This is often done with PVC pipes or metal conduit. These arches should be evenly spaced along the frame and secured firmly.

Step 5: Attach the Plastic Sheeting

This is where the greenhouse starts to take shape.

  1. Unroll the UV-resistant greenhouse plastic sheeting over the frame. Make sure it's taut but not overly stretched, as it may tear or wear prematurely.
  2. Secure the plastic to the frame using greenhouse plastic clips, wiggle wire, or by stapling it in place. Start at one end and work your way to the other, smoothing out wrinkles as you go.
  3. Trim any excess plastic sheeting, leaving enough to secure it properly.

Step 6: Doors and Ventilation

To ensure easy access and proper ventilation:

  1. Create a door frame and attach it to the greenhouse frame.
  2. Hang the door using hinges and install a handle for easy opening and closing.
  3. Install ventilation windows or vents as needed to control the temperature and humidity inside the greenhouse.

Step 7: Finishing Touches

Inspect the entire greenhouse for any loose plastic or structural issues. Make any necessary adjustments or repairs.


Building a greenhouse with plastic sheeting is an excellent way to enhance your gardening experience. With the right materials, tools, and a bit of patience, you can create a functional and cost-effective greenhouse that extends your growing season and provides a nurturing environment for your plants. Remember to maintain and care for your greenhouse to ensure it continues to serve you for years to come. Happy gardening!