I built a surround, mantel and overmantel using MDF, various moldings and honed travertine tiles (filled). I don't know how to post pictures, but, if you e-mail me I'd be glad to send you some. To answer your questions: You can install the travertine directly on the drywall using fortified thinset (don't buy the pre-mixed kind). Just make sure the drywall is well anchored, I drove some extra drywall screws into the studs before installing the travertine. I didn't seal my tiles, but, the honed finish is smoother than what you have. The reason to seal before grouting is that the sealant acts as a grout release and makes it easier to clean the grout from the tiles. With rough tiles I've found it helps to keep a water spray bottle handy which you can use to flush out any grout that gets in the holes before it sets. 1/8" spacing is good, however, if your tiles have rough edges you may have to go to 3/16". On the hearth you need plywood for strength and then you should put down some wonderboard or hardiboard. This is because code usually requires at least 1" of non-combustible material on the hearth (check your local code to be sure what the requirement is). You meet the requirement by calculating the thickness of your tile plus the thickness of the thinset (1/8' - 1/4") plus the thickness of the cement board. You should err on the high side. Hearths can get pretty hot, so the thicker the non-combustible layer the better (it acts like an insulator). Also remember to check your local code on the required clearances from the firebox opnening to the mantel and surround. In most jurisdictions this is 12" (for non-combustible materials). I used some corbels that are closer but I bought some made out of molded stone that are non-combustible.

drystonemason - thanks for the offer! I wish you lived in Colorado. My husband and I have a 70's wall o' brick. Really, the entire back wall of our den is covered in blond brick and the sides have custom built (70's style) cabinetry over the brick. We are planning to rip the cabinets out but our question is, what is the best way to reface this much brick? We plan to put travertine tile below the mantel to break up the look but on the rest of the wall, from what we have read, we have a few options. 1) Use a lime based plaster (not drywall compound) to fill in grout lines and eventually build up and smooth out to a rough, toweled on surface 2) Use mortar and stucco to achieve the same look. 3) Using drywall we can either frame out the whole wall and start over or use liquid nails (a lot of it) to put sheetrock on the areas that are not tiled. Hoping you might have some suggestions on what the easiest route would be considering it IS a whole wall. I will see if I can get a picture to insert which might be helpful.

I have this fireplace that sticks out at a weird angle and takes up too much space in a narrow, rectangular living room. It was never used by the previous owner who were the 1st owners of this house, built in 1968. We don't use it either. It's wood and gas burning. I would like to have someone redo the fireplace so it's flush to the wall. This would free up a lot of space in the living room. Is this possible to do? How expensive would it be to do and what kind of contractor would I need to hire? Thank you.

Shiplap became quite popular with the influence of the original Fixer Upper show series which is now in reruns. I think the fireplace looks lovely as it is, but if you want to stay up-to-date, I'd look at something other than shiplap which is past its peak as far as trends go. If you just really love shiplap, then do what you like since you'll be the one living there.