How to evenly space pergola boards

Old 05-31-20, 07:26 AM
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How to evenly space pergola boards

I built a 10x10 pergola in the back yard. I would like to add 12 2x2's to the top for a little more shade. How can I calculate equal spacing of 12 2x2 boards over 10 ft length? I could just guesstimate but would like to know if there is a simple calculation I can use.
Old 05-31-20, 07:31 AM
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12 2x2s are 18" wide. 10 feet is 120". That means you will have 102" of free space in the 11 spaces between. 102 11 is the width of each space. A little over 9 1/4".
Old 05-31-20, 07:57 AM
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Depends how you start/end.
So if you have a header at each end and want to start with a space and end with a space there are 13 spaces
Also is the actual space you want to cover 10 feet or is the outside dimension 10 feet?

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