Affix the boards together and use a waterproofing membrane for wood along the top edge to keep water from between the boards.
Positioning vinyl posts how far from edge on wood deck.
Some builders position them every 4 feet for a completely rigid frame.
They draw the baluster up closer to the deck edge and make a slightly firmer joint than surface mounted posts.
As with any deck remember that any deck that is 2 feet or more above the ground must have a railing system.
In general posts should be spaced no more than 8 feet apart.
Lay the beams on top of the posts in the beam brackets.
Deck railings must be a minimum of 36 inches high from the deck floor to the cap rail.
With posts outside the joists the simplest approach is to use two posts at each corner held back far enough to line up with the second joist about 12 to 16 inches from the corner.
The type of post you use can also affect the spacing between posts.
Typically this is 16 inches on center measured from the center of one joist to the center of the next.
The maximum distance between footings is determined by the size of your joist material.
Use a joist scrap to be exact.
Mark the posts for a notch that is 1 1 2 inches deep and as long as the depth of the joist about 7 1 2 inches for a 2x8 joist about 9 1 2 inches for a 2x10.
This helps to prevent wooden posts from rotting.
Typically you ll need one for each 2 feet of post height.
If the balusters will run horizontally along your deck the 4 by 4 railing posts cannot be more that 6 feet apart.
Be sure to alternate joints on different posts and not have any joints on the gate posts.
Starting with your perimeter mark the location of each deck post to locate the fitting position.
The top rails extend beyond the posts to meet at the corner see detail below left.
There are several ways to set deck posts.
We recommend attaching the posts to concrete footers above the ground.
Longer stringers can span two or more posts.
If you re installing parting boards in the middle of the deck start marking the joist spacing from the center of the beams working toward the end joists.
Posts on the outside set back from corner.
In this situation the soil under each deck footing may be called upon to support 3 000 plus pounds.
First off mark where deck posts will stand in the yard.
Attach them to the posts following the ground contour.
Most backyard decks using wooden posts rely on the 5 to 8 feet average for the post spacing but modern advancements in deck building now allow for metal posts as well as composite posts to be used in place of traditional wood.