ᐅ Constructing concrete footings or pier foundations for a pergola?

Hello everyone,

We have ordered a Pergolux pergola with wall mounting. One side will be attached to the house’s masonry, and the other side will be supported by two posts.

The pergola has a height of 235cm (7 ft 8.5 in) at the underside. However, I need to raise it to at least 250cm (8 ft 2.5 in), so I have to build a roughly 15cm (6 in) high base for each post. Both bases also need to be exactly the same height.

The base will be built on the existing terrace, which already has partial foundations in the relevant areas. However, I am still looking for the right method.

1) Place prefabricated concrete bases (such as stair blocks or similar) on the old foundation? Will that hold?

2) Create isolated pad foundations on the existing foundation? What should I pay attention to?

I imagine it roughly like in the pictures, just a bit lower... the last picture shows the spot on our terrace where the base should be built.

Maybe someone has an idea?

Thanks in advance and best regards
Tim

That seems like a rather shaky setup to me.
It also looks a bit questionable… is your Pergolux pergola not supposed to have any slope to allow rainwater to drain?

How shaky are we talking?

The pergola has an integrated gutter with its own slope and water drainage through the support posts. Therefore, I don’t need to factor in any additional incline.

Why don’t you order the pergola, or the posts, in the correct length?

Because it is only available in this length, and a custom size would cause additional costs of about 2000 euros.

Hello Tim,

I assume you want to increase the installation height to 250cm (98 inches) because of a roller shutter box, is that correct?

Have you considered using height-adjustable post bases to compensate the support posts to the required height? You can see this approach in the attached picture.

Or have you already found a solution by now?

I am facing the same challenge.

Good luck with the installation!