Likely the beams will be built up from two 2x10's nailed together. It is important to sight down each 2x10 to determine which way the crown of the wood goes. Most boards will bow up in one direction. It is important that the crown faces up.

Square one end of the 2x10's and then measure the finished length of the beam. Square the mark and cut to length. Nail the beam together every 16" with three 3-1/2" framing nails. Angle the nails into the wood so they don't protrude from the back face.

In order to secure the beam to the post you will need to use a post anchor. Be sure to use an anchor suitable for the size of post and beams you are using for your deck.

Your local building center can advise on suitable anchors.

With the post anchors in place the beam can be positioned onto the posts and adjusted to the right location. Secure the beam through the post anchors.

Now it is time to install the deck joists.

Next article in the series - Installing Joists »»