Karson Chu - AM - 30 Min- find the wood I should buy for my magic mirror so its not too heavy

I looked up what wood is a good material to make the frame of my mirror to be out. I was think of using the house building wood but it would be too heavy. so I need to look for something more light weight. So I decide to maybe use MDF wood because they are lighter in weight and they are easier to work with. I also calculated the dimensions of the display and the mirror.