Using green wood issues.

The first 2 coffee tables I made were made using green oak off cuts. I cut them to size and left them to dry out more before I used them but I couldn't wait that long. I just wanted to build something I designed! But now I can see the issues that have developed which will now have to be sorted out. I spent a lot of time squaring every edge to sit perfectly to each other on the top so minimal joint lines were visible. When I finished the table everything was perfect. But now after 3 months of being in a room temp environment the heat has taken its toll on the water in the Oak that was still there when I made it. It caused everything to shrink which caused all the joints to open up as you can see from this picture. 

I have from this table learned that only seasoned wood will need to be used to make something that will not move in a room. The listed at least 12% MC (moisture content) in wood to be used for interior furniture construction is there for a reason. What happened here with the top shrinking is only 1 of many things that can happen from using green (wet) timber.

I have learned not to use green oak for my work even though I have a regular free off cuts supply
 of this ( A friend of mine has an oak framing business). I am keeping hold of the bits I can use still but storing them to dry them out after cutting them to approximate size so I could possibly use them in the coming years. Remembering the rule of thumb. Every half inch thickness should be left to dry for a year.