Decide on the width depth and height of your cold frame so that you can buy the right amount of wood as well as the right size transparent sheet to go on top.
Cold frame just a fiberglass sheet.
They are laid out with the long dimension running east to west.
It can also be purched from charley s greenhouse supply to the covers.
To close in the ends of the cold frame s lid cut out two 18 x 18 x 25.
This cold frame actually sits up above the ground like a table and is perfect for starting seeds in the winter.
Cold frame table cold frame table.
With a clear acrylic sheet on top plenty of light hits the inside and there s a handy shelf underneath which provides a little extra storage space.
The bottles are used as the side and the top for the cold frame.
A cold frame can be any width that the lights will cover and any length or height.
The frame can be constructed out of many materials but wood is the most common choice.
This will help hold in heat and should extend your growing season without overextending your budget.
Traditional home garden cold frames measure 4 to 6 feet front to back and are 8 to 12 feet long.
Step 3 construct your frame.
The frame should be just tall enough to clear the crops you plan to grow.
To control the temperature in the cold frames i decided to attach univents made by solar vent works.