pergola post heights for pitch

Depends on the reference points.
Is the 192mm is based on 5.5m and are your support point 5.5m? Ie between your extenda brackets and the front post.

If the 5.5m is the length of the roof then to work out the difference in support locations is :
5500 / 192 =X
Distance between extenda and from post x X

Although unless there is significant difference between the roof length and support locations it is only going to be fractions of a degree.

The blocklayer website may assist.
https://www.blocklayer.com/

hey mate yeah based in the 5.5 roof. so distance from extendas to posts would be 4.5. taking out overhangs

so 157mm around there should be fine?

Sorry got it a&$# about



192 / 5500 = 0.035
0.035 x 4500 = 157 mm

If the roof length is 5.5m and you want 192 mm fall over the roof, and your support points for the roof are 4.5m apart then the height difference between the support point will need to be 157mm.

yes thank you clear things up sometimes i overthink haha