Homemade Whiteboard

Step 4 Mark to length

This is where you're not going to like me, in that I'm not going to give you lengths for the frame pieces. Because you can do the frame two different ways, you can have the short pieces inside the long ones(which is what I did), or the long pieces inside the short pieces. Also if there is one thing that I have learned doing trim work, that is don't measure, but mark the piece that needs to be trimmed instead. Because the numbers will always trick you.

So here is how I did it.
1) Take a pieces of sand paper and sand all the edges of the tileboard, because the fit is very tight. And the frame piece will bind if you don't sand the tileboard. The tileboard should have the writing surface up.
2)Slide the two short pieces on each end, fat side of the grove down.
3)Take one of the long pieces and trim the end square.
4)Slide the long piece onto the tileboard and square it up in one corner.
5)At the other end of the long piece, mark for length on the outside of the frame.
6)repeat for the other long piece.
7)Now take the two scrap pieces and slide one into the normal frame position. And slide the other scrap piece to butt against the overhanging short frame.
8) Now mark the short frame on the inside. Cut to length and repeat on the other short piece.