Easy to build and even easier to use. This jig will give you an exact alignment edge after your first cut. When you construct the jig make the T (fence) a little oversized, then when you make your first cut it will provide you with an alignment mark for accurate cuts with your circular saw. The jig shown in the plan will handle boards up to 18″ in width however the jig is so easy to build, I would suggest making a couple of different sizes just for ease of handling. The jig is just a great way to give you quick alignment and accurate cuts. If you are measuring from the left end of the board allow (add) the width of your saw blade for accurate cuts.
"Fatherhood is pretending the present you love most is soap on-a-rope."