How to Build Your Own Greenhouse: Step-by-Step Instructions April 25, 2018 – Posted in: Blog

A home greenhouse can be an easy way to grow vegetables, herbs, fruits and other plants year-round. A pre-built greenhouse can be an expensive purchase, but, luckily, with a little know-how you can build your own home greenhouse.

A home greenhouse can be an easy way to grow vegetables, herbs, fruits and other plants year-round. A pre-built greenhouse can be an expensive purchase, but, luckily, with a little know-how you can build your own home greenhouse.

How to Build Your Own Greenhouse - Infographic

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Steps to Build a Greenhouse:

Follow these steps to build your own greenhouse:

  1. Choose a Design: The optimal greenhouse design will depend on the climate that you live in. The necessary design will vary from a simple tent with insect mesh to keep bugs out to an insulated structure.
  2. Choose a Location: In North America, choose a spot that is facing south or southeast so that you can capture early morning sunlight. If you are located in the southern hemisphere, a north or northwest direction would be preferable.
  3. Gather Your Materials & Tools: You will need everything to build your greenhouse from the ground up. See the list in the graphic above for a complete list of tools and building materials!
  4. Build a Foundation: Start by digging six 6” holes for the concrete blocks. These blocks should make a rectangle 8’4” x 12’ in size. Make them level with the surrounding earth using a sledgehammer and check to make sure the foundation is level before moving forward.
  5. Frame the Front & Back: Build a frame for the front by laying two 8’ 2x4s parallel to each other 8 feet apart. Use exterior screws to attach three more 8’ 2x4s to them so that you have a square broken into two rectangles by a 2×4 going up and down the middle. Repeat this process for the back frame.
  6. Frame the Sides: Lay two 12’ 2x4s down parallel to each other 8 feet apart. Then use exterior screws to attach five 8’ 2x4s between them, one at each end and three evenly spaced in the middle. If you want to have your greenhouse door on the side instead of the front you can adjust the spacing of one of these boards to fit the door.
  7. Raising the Walls: Start with the back frame and place the bottom of the frame on the concrete blocks and raise until vertical. Having helping hands is helpful at this stage, but if you don’t have help you can use an extra 2×4 at a 45-degree angle to support the frame while you screw the frame into the concrete blocks. You can then repeat these steps for the front and the two sides. Once all the frame pieces have been raised and screwed into the foundation you can then screw them together at the corner edges.
  8. Install the Roof: Cut two 21 ½” 2x4s and use exterior screws to toenail them to the center of the end frames. Place the last 12’ 2×4 on top of these 2x4s and toenail it in place as well. Then cut eight 2x4s to fit at an angle between the walls and the roof line. They should be approximately 5’ ½” long at an angle of 33 ¾-degrees. You can then screw them in place.
  9. Finish the Exterior: Install the door at the front or the side of the greenhouse – whichever you prefer – and then enclose the greenhouse structure with greenhouse plastic by using a drill and screws to secure the plastic to the frame. The plastic can be cut with wire cutters as needed.
  10. Temperature & Humidity Control: You will want to install vents, fans, dehumidifiers and/or a heating system depending on the climate that you live in and the plants you are trying to grow.

Greenhouse Climate Control and Ventilation

If you’re looking for portable greenhouse equipment to help with climate control, look no further than dehumidifiers and air movers from Aer Industries! Our heavy-duty dehumidifiers and air movers can help you keep your relative humidity (RH) at optimal levels.

Check out our selection of equipment online today and contact us if you have any questions!