Thanks for sending the pictures over. The pergola looks just fabulous!
It really is lovely. I like the way you have used so many different ways of including plants and accessories to make your area an interesting place to sit. The darker colour of the posts adds to the overall effect, too. And, of course, it's weather-proof - what a bonus!
It's no wonder your neighbours are keen to have you help them.
Glad to hear that your wife loves it - a few brownie points never go amiss!!
It would be great to see the climbers in flower. The solanum (top right of picture) is one of my favourites - such a beautiful purple.
Until the summer then...
John mentions measuring the hypotenuse very carefully so that his polycarbonate panels fitted perfectly onto his attached pergola lean-to.
When building a DIY pergola, it is important that the distance between the diagonal posts is equal. This ensures that the pergola is absolutely square.
For example, say we had a pergola with the dimensions 8' x 12' - if we have opposite sides exactly the right measurement, it doesn't necessarily mean that the post footprint will be square. The angles need to be equal too!
Let's take a look...
The purple diagonals in the top rectangle are perfectly equal, or 'square'.
The bottom shape, even if it's just a tiny bit out, makes the rectangle become a parallelogram, because the diagonals are no longer equal and neither are the corner angles 90 degrees (I've exaggerated the amount it is off square to illustrate the point).
There are two ways that you can achieve equal diagonals:
To find what is called the hypotenuse of a triangle (the longest, diagonal side) we use Pythagoras' Theorum, which states that:
'The square of the hypotenuse is equal to the sum of the squares of the two shorter sides.'
So say our attached pergola is 12' x 8', we would calculate the diagonal like this...
Now this leaves us with a dilemma. What exactly is 14.42'!
This is why, when doing more tricky calculations, I always use metric measurements.
To do it this way, find out what 14.42 is using a length conversion website...
Here we find that 14.42' = 4,395.2mm. Point 2 of a mm isn't worth bothering with so we'll say 4,395mm, which also equals 4m and 395mm.
This would be your measurement between the diagonal posts.
However, if the length of our sides is 12'4" x 8'6", then we're going to have difficulty with this too! First we'd have to convert the feet to inches and do the calculation with these, but then it'll probably give us a point something in the answer, and as .6 is not six inches (because there are 12 inches in a foot and decimals are in tenths)...This proves too difficult!! (I wouldn't be surprised if you switched off halfway through that!)
I do use imperial measures for some things, but for this type of calculation it's safest to use metric measurements: you'll save yourself getting into a real muddle!
It depends on how you visualise distance/length. Do you think in feet and inches, or in metres and millimetres? Even if you tend to think in feet and inches, if in doubt, use metric measurements. They are accurate, easier to calculate and you won't run into any sticky situations!
Everyone loves climbing plants! They are something attractive to look at and smell while sitting under your attached pergola lean-to. The forms of different species and varieties are incredible, both planted on their own or in combination with other climbers.
Like John, you can grow plants in the ground, in pots and in hanging baskets to give a really interesting and abundant look.
Find out more about climbing plants here...
If you haven't already seen the plans, read more about them here...
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