I have been looking about for ideas how to make a simple cold frame
(not very talented DIYer) Quite a few sites that sell wooden cold
frames have ones with solid sides and only the top is clear. Would this
not make it so that the plants would be shadowed? I am presuming it is
done for ease? Would it be better to make the front and top clear? If
it is not going to be moved would making the north side brick to allow
heat retention?

Thanks in advance
amber