Deck constructionis a process, and setting deck posts is a multi-step project itself that requires careful work.
To make the job go quickly, do everything in stages.
First, you’ll square all the deck posts and set them in the anchors with a temporary brace.
Credit: Peter Krumhardt
Next, plumb, align, and brace the posts before marking and cutting them to a consistent height.
For step-by-step instructions, follow our guide on setting and cutting deck posts to get started on yourbackyard makeover.
Setting deck posts will go more than twice as fast if you have someone help you.
Credit: Larry Johnston
Dip cut ends in a preservative before setting them in the anchors and let the preservative soak in overnight.
Set Deck Posts
Set each deck post in its anchor.
While someone holds it plumb, drive one nail through the anchor hole and about halfway into the post.
Credit: Larry Johnston
This will keep the bottom in place but allow you to move it when you plumb it.
Tack 1x4 bracing to the post and stake in position.
Clamp a second 1x4 brace to the post and stake it.
Credit: Larry Johnston
Plumb each deck post with a post level, keeping its outside face against the mason’s line.
Align Deck Posts
Recheck the post alignment by sighting down the mason’s line.
Replumb any post that looks out of line and adjust the bottom of the post if necessary.
Credit: Larry Johnston
Adjustable post anchors are made to be moved up to the last minute.
To adjust, insert an open-end wrench in the slot and loosen the nut slightly.
Tap the post into place with a hammer and a piece of 2x4 scrap, and retighten the nut.
Credit: Larry Johnston
Anchor Deck Posts
Drive the remaining fasteners into the post anchor.
Some anchors are made to accept nails or screws only.
Others are fabricated to accept a lag screw, also.
Credit: Larry Johnston
Predrill for the lag screw before driving it.
Mark Level Line
Use a water level to establish the height of each post.
Hold the water level on each post and mark the post at the water line.
Credit: Larry Johnston
Transfer the mark around the posts.
Make this line dark enough to see it when the sawdust flies.
You will need to be able to see the line to keep the blade from wandering.
Credit: Larry Johnston
A reciprocating saw will prove more accurate.
Credit: Larry Johnston
