Skip to content

Free Garden Shed Greenhouse Plans

Here are some ideas and basic plans for building a combination garden shed and greenhouse. This hybrid structure provides storage space for tools and supplies while also offering a place to grow plants in a controlled environment.

Free Garden Shed Greenhouse Plans:

1. Design Overview:

  • Size: A common size for a garden shed greenhouse is 8×12 feet or 10×14 feet, but you can adjust dimensions based on your available space.
  • Structure: The shed part usually consists of a solid wood frame with walls and a door, while the greenhouse portion uses transparent materials like polycarbonate panels or glass for optimal sunlight.
  • Roof Style: A sloped or gable roof allows for water runoff, with the greenhouse side often having a steeper angle to maximize light exposure.

2. Materials Needed:

  • Framing: Pressure-treated lumber (2x4s or 2x6s) for the frame and base.
  • Foundation: Gravel or concrete pavers for the shed base; raised beds or gravel for the greenhouse floor.
  • Siding: Wooden or metal siding for the shed walls.
  • Greenhouse Panels: Polycarbonate panels, greenhouse plastic, or glass for the greenhouse portion.
  • Roofing: Asphalt shingles or metal for the shed roof, and transparent materials for the greenhouse side.
  • Doors and Windows: A solid wood or metal door for the shed; optional vented windows for both sections to promote airflow.

3. Basic Steps to Build:

  1. Foundation:
    • Prepare a level base using gravel or concrete pavers.
    • Build a wooden frame foundation with pressure-treated lumber.
  2. Frame Construction:
    • Construct the walls using 2x4s or 2x6s, with one side designed to hold the greenhouse panels.
    • Include openings for doors and windows as desired.
    • Attach the walls to the base, ensuring they are level and secure.
  3. Roof:
    • Construct the roof frame with a sloped design. For a gable roof, create two slopes meeting at a central ridge beam.
    • Install the roofing material on the shed side and transparent panels on the greenhouse side.
  4. Greenhouse Portion:
    • Attach polycarbonate panels, glass, or greenhouse plastic to the greenhouse side frame.
    • Install vented windows or roof vents to help regulate temperature and humidity.
  5. Interior Shelving and Organization:
    • Add shelves, potting benches, or hooks in both the shed and greenhouse sections for storage and planting.
  6. Finish and Weatherproof:
    • Paint or stain the exterior wood to protect it from the elements.
    • Ensure all joints are sealed, especially around the greenhouse panels, to maintain the correct environment for plants.

Key Considerations:

  • Location: Position your shed greenhouse in a sunny area that gets at least 6-8 hours of sunlight per day.
  • Ventilation: Include windows or vents to prevent overheating in the greenhouse.
  • Permits: Check local regulations to see if you need a permit for this type of structure.
  • Water Supply: Consider adding a water source, like a hose connection or rainwater collection system, for easy watering.

Leave a Reply