Life In 19x19

I have finished what will be my goban but i need a little help placing the grid the board dimensions are 17 15/16 in long by 16 11/16 in wide so i just need help placing the border of the grid.

Well, your aim is to be able to fit (almost flush) 19 stones on in each direction. The lines go in the middle of the stones. So, personally, I would divide the length of my board by 19, and call the result x; then I would mark 0.5x, 1.5x, 2.5x, ..., 18.5x across the board. (Each line will end up a distance of x from its neighbours, and the lines at the edge will be a distance of 0.5x from the edge of the wood.) The same in the other direction (your board is rectangular, so x changes, of course!). Then I'd join it up into a grid. You can test out the process on a piece of paper first - it doesn't matter if the size is different.

http://senseis.xmp.net/?EquipmentDimensions has all the details you need, I think?