How do I punch a square hole in a corrugated surface

Can someone please help. I’ve searched many tutorials but I can’t figure this out. How do I punch a square hole in a corrugated (uneven) surface. I’ve tried intersect face with selection, model etc. but nothing works. I get the feeling I’m not making the right selection. I’m working on a steel shell of a building and I need to cut out the windows. The steel is corrugated. The steel section is a component inside another component which is the entire shell. Greatly appreciated. Thanks. Jim

What tools do you have available? Your profile says you are using SketchUp 1. That would be long before Solid Tools or extensions would be available.

Sketchup V 21.1.331. OS in Mohave on the Mac. I’d attach the Sketchup file but I haven’t figured out how to do that yet either. How do I link an .skp file? Thanks…

Thanks. I’m using the push/pull tool. I think that’s all that’s necessary based on the tutorials I’m watching…

Please correct your forum profile.

Drag and drop into a reply here.

Steel30x60__02-15-22.skp (15.3 MB)

Thanks Dave.

If the model is a solid you can use the Solid tools to subtract or trim the holes. When you use the “intersect faces” function you must be working within the component or group that has the faces you want to be cut.

Thanks Anssi. Well I’m working in the right component but it’s a corrugated surface so I can’t draw a box like a solid. But there’s a solid wall that the steel is attached to that already has the holes but that’s a different component. So what I thought I might try is to trace a box using the solid surface and push it through the corrugated surface. Then intersect the square box with the corrugated surface. Will that work? But they’re 2 different components. I don’t know, I’m stumped on this one…

OK. I think I corrected my profile. Thanks.

Your idea is correct. See this SU file.

Cutting opening in a corrugated wall.skp (1.2 MB)


Wow. Thank you sir. Absolutely brilliant tutorial. I’ve been trying to figure that one out for weeks. So my mistake was that I kept putting the rectangle in the wall component before I made the box. It’s simple when you know what you’re doing…

This is not necessarily a mistake since you can add the rectangle in the component before push/pulling the box. However, you have to be very careful to avoid any unwanted interaction with the wall, especially with a corrugated wall.

OK. Then I must have been doing something dumb. The corrugated section is very complicated so I may have clicked on something I shouldn’t have. I’ve got a lot of windows to make so I’ll have a chance to play with it and get good at this. Thanks again so much for your help…