Trim, subtract, cut from a surface

I am trying to subtract a load of squares from a surface. I have seen a thread for circles but have seen that the script split the circles into arcs to get it to work without code. Grill_Test.dyn (104.3 KB)

Any help most welcomed!

Surface.Split may help here

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is this in a package? it doesn’t seem to be a node available to me. 2019-01-22%2014_13_50-Window

Sorry it’s Geometry.Split. You’ll likely want to union your solids into a single geometry first. Looks like this: