At Ecology Action, many seed varieties are started in seedling flats and then transplanted into the bed once they are established. There are several advantages to using wooden seedling flats:
How to Build a Seedling Flat
Construction For ease of construction, collect all the necessary tools and materials in one place. This project should take less than an hour. Depending on the age of your children, consider including them. It's a great way to introduce them to simple carpentry and garden preparations.
Start by aligning the bottom pieces with one of the end pieces to determine their placement.
Attach the two outer bottom pieces to the end pieces. Be sure to line up the pre-drilled holes with the board underneath. If they don't align perfectly, gently tap the nail into place before driving it home. Be careful not to hammer your fingers or thumb! Add the middle bottom pieces last, positioning them evenly to provide drainage slits on either side.
Add the long side pieces, and you're done!
Now, you're ready to get started growing your seedlings!