Wood wasp? - NOT amateur radio

This fearsome looking insect was on our garage door after breakfast. It was still there after lunch. 

I think it is a wood wasp, but I am no expert!  The body was about 3cm long.

It has a very large bottom which you can probably only see by enlarging the photo.

Wood wasp? - NOT amateur radio

 

This was on our lounge window today. I think it is a wood wasp. It was there for several hours.