# What is the fastest way to add a poly frame to a window hole?

I am proceeding like this: first I select the hole external edges.

And I make a face out of them:

Then I duplicate the face in the Y axis, and delete the old one (I don't know how to detach the new face from the main object):

Then I extrude:

Then I extrude again all faces, so to inflate the box by the right amount:

Then I delete the back face:

Then I bring the open box to intersect the wall:

Then I make FACE - INTERSECT (BOOLEAN):

Then I merge the exceeding vertexes and assign the new material:

Et voilá: frame in the wall.

I am sure this is a stupidly long and convoluted process and that there's a quick command to do this.

Edit: a little bit faster.
Take the 4 sides of the window, duplicate and move locally in axis, extrude along normals with negative value, delete faces in excess, then move the 4 polygons back into the wall and do the intersect boolean. It's a bit faster. Still makes no sense.

• All of that can be easier by using inset. – susu Jan 6 at 3:27
• Ehm no, I know the command INSET... but the windows need to be that dimension. I need to put the frame to the external of the existing hole. That's the whole point of this post. – PolyMad Jan 6 at 3:28
• The inset tool has an "outset" option, did you try that? – susu Jan 6 at 3:31
• @PolyMad The structure of your question may be a little confusing for some readers, may I suggest something like "I have this > I want this > I am doing this" somewhere? – Timaroberts Jan 6 at 3:33
• As @susu points out, there is an outset option. But I think it's fair to suggest, when modeling to reference, if you want to save time and get clean results, planning is the most important step. ( You would raise an eyebrow if you saw a builder taking a jackhammer to a wall to fit a wooden window-frame.. :) ) – Robin Betts Jan 6 at 7:28

Use the Inset tool in Outset mode. Then extrude and delete the inner face.

Outset will create new faces around the selected face.

Avoid using booleans, they will create bad topology.

• This is king! – PolyMad Jan 6 at 15:34
• This is the king! – PolyMad Jan 6 at 15:34

Quickest way I could think of is to bevel the edges.

Just select the edge loop, press Ctrl + B and adjust the number of cuts to $$2$$, and the shape to $$1$$.

Eliminate the inner edge loop if undesirable.

• This is king! – PolyMad Jan 6 at 15:33
• Not the best for this exact situation, but I learned something! – PolyMad Jan 6 at 15:35