Although we have had temps drop below freezing already this Fall, we have not yet needed a full time or mostly full time cold frame. Broccoli, lettuce and cabbage are doing very well here thus far. I have tiny broccoli heads on my broccoli plants and am anticipating fresh home grown broccoli soon.
Today my husband and sons work on a more useful cold frame in preparation for the freezing weather this week.
Below is useful son #4 taking a break on his toolbox.
Scrap wood pieces from the house we are remodeling were used to build a rectangle frame that he will staple plastic to.
I have seen a variety of cold frames made from different items….old windows can be attached to wood frames with hinges with the ability to be propped open during nice winter weather and closed for freezing weather.