One of the most cost-effective ways to create a mini greenhouse is by upcycling materials. Old picture frames, clear plastic ...

Plastic sheeting is used as a covering to help let in plenty of light while keeping the cold out. The greenhouse is also heated, and can maintain a 40 deg F temperature differential with 14,000 BTUs.

2 x 4 framing lumber and polycarbonate or greenhouse plastic panels are used to craft the finished product. The plans are designed to be easy to follow, even for those with limited construction ...