Instructions for the construction of the Pergola wooden and plastic flower truss
Pergola flower pedestal is a type of outdoor flower trellis, designed from large surrounding pillars supporting an awning above. This flower trellis is often made to shade the front porch, garden porch, place to enjoy tea with family and receive guests. Hereafter, Kosmos will Construction instructions for Pergola flower truss made of wood and plastic in the article below.
Pergola flower trellis made of wood and plastic need wooden plastic bars and posts, products made from termite-proof and water-resistant composite wood plastic materials. To ensure rigidity and limit warping, when constructing, we need to insert galvanized iron bars into these two products.
According to Dr. David Grewell of Purdue University, USA, WPC (wood plastic composite) is a sustainable material and helps significantly reduce the negative impact of the construction industry on the environment.
Pergola flower trellises often have many different designs, depending on the construction area and style of the house to design appropriately. The following instructions are for reference only. To have the most suitable construction plan, it is necessary to survey the specific project and come up with an optimal construction solution.
- Step 1: Prepare tools and materials to construct a plastic wooden Pergola flower trellis.
- Step 2: Fix the galvanized iron bar to the floor as a column.
- Step 3: Insert the plastic wooden pillar into the pre-built column.
- Step 4: Make deep grooves on the Pergola post to attach the cross beam.
- Step 5: Make deep grooves on the bar to attach to the cross beam.
- Step 6: Fix the bars with corner brackets and stainless steel screws.
Prepare tools and materials for the construction of the Pergola wooden plastic flower truss
The necessary tools to construct the Pergola flower truss are:
- Cutting machines
- Welder
- Drill
- Screwdrivers
- Special glue
- Tape measure, measuring tool
- Grinder, sandpaper
Materials needed to install Pergola wood plastic flower truss include:
- Iron bar galvanized box
- Pergola
- Railing
- Code
- Stainless steel screws and brackets


You can see details on how to create a razor head shape in the video below.
We will prepare many galvanized iron box bars with different sizes. Their dimensions must be suitable for the bar and plastic wood pillars as follows:
| Galvanized iron bar size reference table for plastic wood poles and bars | |||
| PLU | Dimensions (mm) | Cylindrical cage size (mm) | Galvanized iron bar size (mm) |
| Cylindrical system | |||
| T100X100 | 3000x100x100 | 54.5 × 54.5 | 50 × 50 |
| T120X120 | 3000x120x120 | 61 × 61 | 60 × 60 |
| Blue system | |||
| LAM35X35 | 3000x35x35 | 24 × 24 | 20 × 20 |
| LAM50X50 | 3000x50x50 | 37 × 37 | 30×30 or 35×35 |
| LAM60X40 | 3000x60x40 | 48 × 27 | 25×25 or 40×20 |
| LAM80X40 | 3000x80x40 | 53 × 28 | 50 × 25 |
| L105X50 | 3000x105x50 | 32 × 31 | 30 × 30 |
| LAM160x80 | 3000x160x80 | 105 × 52 | 100 × 50 |
Fix the galvanized iron box to the ground as a column
We will use galvanized box iron bars, the size of which corresponds to the wooden and plastic pillars to build the poles. We fix the gusset plate to the floor, then weld the gusset plate to the galvanized iron bar.
Note: For unstable foundations, you can apply the form of digging a hole and then threading the pillar into the hole.

Insert the plastic wooden pillar into the pre-built column
This process is very easy because both have been carefully selected in size from the beginning. To increase the aesthetics, we can use additional accessories such as: base, plastic wood brace, .. cover the junction between the pillar and the foundation.

Make deep grooves on the Pergola to attach the crossbar
We use plastic wooden bars to make cross beams. Cut so that the width of the groove on the pillar is equal to the width of the beam, helping them to be tightly linked together (See illustration).


Make deep grooves in the bar to attach to the cross beam
We continue to use plastic wooden slats to make sunshades. Cut so that the width of the groove on the trellis bar is equal to the width of the cross beam, helping them to be tightly linked together (See illustration).
Normally, the distance between sun louvers is 30-40cm.

Fix the bars with angle kegs and stainless steel screws
Link the bars, plastic wooden pillars together with angle kegs and stainless steel screws to create certainty for the project.

When you complete the above steps, you have completed the construction of the Pergola wood plastic flower truss!

We hope that the instructions on how to build this wooden plastic Pergola flower truss will be useful to you. If you have any further questions about the construction process, please contact us click here or Kosmos Vietnam Fanpage


