I do my own frames for several reasons, less expense yes, but also I am a woodworker, and have strong concerns for caring for the environment. So I make my frames by acquiring re-purposed/recycled/reclaimed wood.
Therefore in this project I have used:
• A melamine clad cabinet door 14" W x 22" L repurposed t this project
The slots are handy for my adding a flip stop and a sliding stop in the near future.
• Scrap pine from the TechShop Wood Bin.
• Reused/recycled drywall screws to fasten the wood pieces together