I'd probably do a 5 by 7. It will give the entrance more presence. It looks like your door clearance is tight so you may not be able to use a rug with a high pile.

It ok to put 1/2 the console on the rug? Size shown is probably 6 x 9 - looks good

I would do a smaller rug. The size you were thinking, 4 x 6. It will let the tile show on the sides and you don't have to have the console legs on it.

Is there a rule re: having console/bench legs on the rug - is it better to have a bigger rug and have console 1/2 on the rug or should the rug clear the furniture?

The general rule about rugs is to place furniture on them. You want rugs and furniture to relate, not look like strangers in an elevator. Bigger is almost always better.

https://www.google.com/search?q=rug+placement+advice&oq=rug+placement+advice&aqs=chrome..69i57.10718j1j7&sourceid=chrome&ie=UTF-8

That rule applies to foyer rugs as well?

Why would it not? It's your space, if you want to go smaller, go for it.

My preference would be a runner, with the length ending just before the arch. I’m not a fan of foyer consoles/other furniture sitting on rugs in this type of entryway, but that’s just me. I prefer a cleaner look, with more of the floor showing, and the rug being a walkway into the house. (Again, not all cases, but in this type of longer, closed in entry and with this type of console — glass, lightweight look.)

Tile squares are 2’ x 2’- the smaller space i have taped out is 4 x 6. It would end just before the arch - and leave the console legs clear of the rug.

Thanks for your help, I Am looking for a clean look - but dont want it to look too small.

Yes, I think that would look nice. I was going to suggest a 3 ft runner, but I like your 4x6 size, too.

I would look for an 3 (or 4) by 8 ft runner. I have a ten foot hall and used 3 by 8, but it’s narrower than yours. Try both sizes and style depends on how you want hall to feel.