I want to construct a simple cabinet for holding a 25'' TV set. I'm planning to construct the surfaces of MDF and make some structure of pine to give it the strength to hold the TV height. The structure will resemble a table: four legs joined by four rails to support the upper panel (table top). Three sides will be covered by panels (one will stay opened for shelves/drwawers) and also will be a bottom panel. Panels will be secured to legs so it will give the cabinet more strenght. The question is which width I need for the pine beans that will conform the structure? The cabinet will be about 80 inches long by 20 inches height and width. The holding "legs" will be 20 inches apart from each side. I wonder if I'll need another central rail. Any other idea for giving the cabinet strength? There are any existing tables on the net for estimating material withstanding?
Any suggestion will be appreciated Thanks in advance