The Cold Frame
Build this hinged-top Frame in a single weekend and enjoy your flowering plants or vegetables a little longer!
Start by cutting all of your pieces to size, as shown in the drawing. Cut the mitered 30-degree angles using your Table Saw & Miter Gauge. An angle setting gauge such as the MiterMatic Angle Setter can make quick work of achieving the exact 30-degree angle you need.
Use your Dado Set to create the rabbets for your glass or plastic panes, then drill all the necessary holes for the dowels that will help align and hold the frame together. Or, if you prefer, assemble your frame using biscuits.
Assemble your frame using a weather-resistant glue such as Titebond II® or a two-part epoxy such as Resorcinol. Once all of your components have set up properly, apply the stain or paint of your choice (or none, it's up to you).
Next, assemble the panes using glazing compound with glazing points or small brads as retainers. Attach the lift-up windows with hinges and add handles. NOTE: We recommend that you use brass hardware, since it won't rust.
A few words about using your Cold Frame:
- Once the plants are in, keep an “eagle-eye” on heat and moisture. The most common mistake is to allow small seedlings (or even full-sized plants) to “cook” inside the frame - or to not allow moisture build-ups to escape (which lets mold and fungus grow). Both of these conditions are easily remedied by simply raising the top slightly...but DON'T FORGET to close the top at night.
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