9. Double check your work

After you cut the pair of boards, put them atop each other again and make sure they are perfectly sized.  If one board is even 1/8" off - it will make a difference later ... so be very patient and very picky!

Once one pair is finished, do the exact same thing for the other side of the frame.  Repeat blogs 6 - 9.  After this, you should have the frame cut.  In our case, we have 2 6' boards and 2 4' boards with angles on all ends.