There's a new calculator on blocklayer.com to work out paling lengths and spacings for fences (and gates?) with arched top.


Arched Fence Paling Lengths and Spacing Calculator - Metric


The arch can go up or down (select the radio buttons) and you can drag sliders to alter the rise or drop, re drawing the diagram so you can see the shape.
You can also drag a slider to add or subtract palings, altering the gap size, re drawing the diagram so you can see how it looks.


The paling width entry goes down to 20mm, so it should work ok for steel also?

Could this also have other woodwork related uses I haven't realized yet?


Please let me know if it needs altering, additions or fixing.

FenceArch.jpg