How to Hang a Glass Pergola

Written by tom king
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How to Hang a Glass Pergola
A glass-framed pergola provide an excellent framework for vines and plants. (pergola image by Rebekah Gonzalez from

A pergola is an open beamed arbor structure on which plants are often trained to grow. It's often attached to a house or covers a deck or porch. Pergolas may be left open or covered with glass panels. The easiest way to build a pergola is to purchase the posts, framework and glass panels in a prefabricated kit found in hardware and home improvement stores.

Skill level:

Things you need

  • Glass pergola panels
  • Posts (included with the glass pergola kit)
  • Post hole digger
  • Roll of string
  • Bundle of wooden stakes
  • Tape measure
  • 2 bags concrete mix for each post hole
  • Frame work trusses
  • Bolts, nuts and lock washers (included with kit)
  • Truss mounts
  • Truss frames and joists
  • Insulation strips
  • Top frame keeper pieces
  • Drill and drill bits
  • Socket wrench set

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  1. 1

    Measure the width of the eaves of the house and add this to the depth of the pergola design. Now run a string line from the house to the position of the corner posts of the pergola. Mark the ground with stakes where you will dig the posts. Run string to mark the rectangle determined by the shape of the pergola. Measure the diagonals to insure the corners are squared.

  2. 2

    Dig post holes for the corner posts the depth and width as recommended by the plans. Make the poles wider at the bottom than they are at the top. Mark off the spots for the posts you will need to support the centre span of the outside support beam. If the support beams attach to a deck, drill holes through the deck support beams and the support posts and bolt them together. Otherwise, put the posts in the holes, and adjust the level till the top is at the height shown in the assembly plan that came with your pergola panels and framing.

  3. 3

    Pour concrete into the post holes and allow the posts to set. Mount the truss mounts on top of the posts by starting at one end and attach the first mount to a corner post. Attach one end of the front truss frame to the first frame mount with bolts, nuts and lock washers. Pull up the stakes and strings.

  4. 4

    Line up the second mount with the next set of holes on the frame and screw the mount to the top of the second post. Continue across the front row of posts till the front truss frame is in place.

  5. 5

    Attach the truss frame mounts to the ends of the joists for the rear frame the same way you did along the front—the mounts are attached to the eaves.

  6. 6

    Bolt the truss joists between the front and rear frames. The truss will form a frame for the glass panels. When completed, lay the insulation strips around the inside of a panel frame. Set the glass panel in place in a truss frame.

  7. 7

    Add the top insulation strips over the glass panel. Repeat on the first row of panels front to back. Screw the top frame pieces into the frame around the top of the glass panels. Repeat the process as you go row-by-row, installing the glass panels till the roof of the pergola is completed.

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