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How to Build a Pergola

Learn how to build a pergola; includes plans and a video of pergola design and construction, as well as tips, materials and tool lists.
  Print these instructions Tools you will need
Pergola Computer Sketch Up Pergola Sketch Poles Vertical Pergola Posts Sketch Up Perpendicular
Draw a detailed plan for your pergola, either by hand or using a computer program like SketchUp. View a copy of Ron's Pergola Plan Determine the location for the pergola's six posts.  Be sure they are lined up straight... ...and directly across from one another.
     
Pergola -marking the edge Pergola - marking posts with string Pergola - second stake
With a piece of 2x2 laid out straight along the front edge of the pergola, place an oversized right triangle against it.  This will help you draw the line for one side where the posts will go. Mark where the front corner post will go with a stake. Tie a piece of string to the stake. Move the string left and right until it is parallel to the edge of your oversized right triangle.  This will ensure that you place your posts in a straight line. Place a second stake roughly where the back of the pergola will be.  Tie the string to the stake to create a guide along which to place your posts.
     
Pergola - tie ribbon Pergola - stake markers
Pergola - chalk circles
Measure out the distance to your second post along the string guide.  Tie a ribbon at the placement for the middle post.  Do the same for the rear corner post. Line up stakes alongside each ribbon and drive them in.  Repeat the entire process on the other side of the pergola until all six post locations are staked out. Draw perfectly round circles around the stakes using a bottomless bucket and chalk dust.  Repeat with the remaining five stakes.
     
Pegola - post hole digger Pergola - measure depth of holes for posts Pergola - fill post holes with concrete
Use a post hole digger to dig the holes for the posts. Measure and check that your holes are the correct depth to support the posts.  In this case, 36 inches to meet building department code for hurricane country. Pour a few inches' worth of crushed rock into the bottom of the hole.  This will provide drainage to keep the ends of the posts from soaking up moisture and rotting.
     
Pergola - straighten post Pergola - post level Pergola - bottom post braces
Carefully place the post in the prepared hole. Use a post level to make sure your post is plumb. Use temporary braces clamped to the post and to a temporary stake to steady the post.
     
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