Deck with pergola attached to house | Deck design and Ideas

Wood Deck with Pergola

Constructing A Pergola / December 2, 2020

Learn how to install a structural fiberglass pergola column for a low-maintenance Trex Pergola kit on a deck, using our exclusive TensionRodTM mounting system with deck mount adapter. Our unique TensionRod mounting system is easy to install and provides a secure foundation which is able to withstand wind loads up to 160 MPH.

This video will save you time and help simplify the building of your Trex Pergola kit by walking you through the column installation process. We show you the tools that you’ll need and give you tips to assist in assembling your pergola.

If you have any questions about the installation process after watching this video, please contact us at 888.908.4965

Hi, I’m Jake Panneton, Customer Care Coordinator at Structureworks and I’m going to show you how to install a pergola column on a deck, using our TensionRod mounting system with deck mount adapter.

The tools you’ll need for this installation are:

Torpedo level
4’ Level
Measuring Tape
Socket Wrench with 9/16″ Socket and 3/4″ Deep Socket
9/16” Open End Wrench
Impact Driver With Phillips and Square Drive Bits
5/8″ x 8″ Wood Drill Bit
3/16” Metal Drill Bit
5/8″ x 12” Metal Drill Bit
Circular Saw With an Abrasive blade
Painter’s Tape
8′ High Step Ladder, we recommend using two

To get started you’ll need a piece of blocking to install under the deck. A piece of pressure treated 2×8 cut to fit between the joists of the deck will work just fine. This block will be attached under the decking and secured with wood screws through the joists on each side.

Now that the blocking is secured, a 5/8” hole needs to be drilled from the top of the deck, through the decking and blocking to allow the 1/2” threaded rod to pass through.

Next, an aluminum plate needs to be secured on the underside of the blocking with a nut and washer.

When installing the plate, if you’re working by yourself, place a washer and nut on the top of the threaded rod, that will keep it from falling through the hole.

After the threaded rod is added, place a piece of 2×8 bracing on the bottom of the joists. This will give additional support to keep the joists from rolling as lateral loads are placed on the columns.

Once you’re done under the deck you’re ready to move to the top of the deck and finish the deck mount column installation.

The next step is to add the aluminum base plate. If you used a nut and washer to keep the threaded rod from falling through the deck, be sure to remove them now. The purpose of this plate is to act as a base for the column leveling studs so they won’t dig into the decking and work loose over time.

Now, install the leveling studs and nuts into the four holes on the column leveling plate. Use one nut on the top side of the plate and one on the bottom side of the plate for each stud.

Then place the column leveling plate on top of the base plate.

Using the four leveling studs and a torpedo level, make sure the plate is level as it will ensure that the column is plum when installed.