March 9, 2013

cold frame

Filed under: film,projects — howarth frank @ 9:49 pm

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I needed to make a cold frame to sprout tomato plants while it is still winter here in the great northwest.  I started by making a 2×4 frame with lap joints at the corners.  On top of this frame, I attached a 3/4 inch piece of plywood to make the floor of the cold frame.   I then made four sides to form a box with an angled shed roof.  The roof is a rail and style frame with Plexiglas panels to let sunlight in.  The roof is hinged at the lower side to allow access and heat to escape.  I installed a heat actuated opener to open the roof panel when it gets too hot inside the cold frame.  I also mounted casters on the bottom to allow me to move the cold frame inside and outside as needed.

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