Here is what I have now. The front opening is approx 33" wide by 22" at the sides and 27" in the middle of the arch. If memory serves, the back of the firebox is about 25"-26" and the depth is around 18"-20". I would guess the height inside the fireplace is about 36" at it's highest. That is purely a spitball guess though. I would provide exact measurements but I think you can see why I didn't.
![Wink ;)](./images/smilies/icon_e_wink.gif)
Thoughts?
![Image](http://i532.photobucket.com/albums/ee322/alex52e/RMH/IMG_20140123_190805_821.jpg)
![Image](http://i532.photobucket.com/albums/ee322/alex52e/RMH/IMG_20140123_190754_28_edit_1390522514398.jpg)