Just responding to "bump", since I am curious as well :-) Also wondering if the cost to install shiplap is more or less expensive than to have smooth dry wall (no spray texture)?

We had shiplap installed in our home- it was installed over the drywall. Kelenangel- it was more expensive for us, since the shiplap was installed after the drywall. So, there was additional expense for materials, labor, and painting.

The added wall depth over the drywall has to be accounted for in all of your window and door trims in the planning stage. Before you order windows and doors. This is a very expensive and very permanent decision for a very fleeting fad.

Put up wallpaper and fake it. You can strip it a lot easier in 2 years when that fad is considered “so 2015 Waco”. Because it’s already on its way out. And you won’t have to redo all of your trim.

I didn't build the house, but I own a home with 10 year-old shiplap. Most of the house is drywall with shiplap installed over it. All of the exterior walls are drywall and shiplap.

I have found one small interior wall that is shiplap only. I found it when one room was dark and the adjacent room light was on. I could see the light through the gaps.

You should not use shiplap in wet locations such as bathrooms and laundry rooms.

One problem with ship lap is wood curing over time. Unless you paint the entire surface, meaning both sides, the board will continue to dry, shrink and warp. Part of this change is attractive and part of the material. If you are at all OCD, this twisting will drive you nuts. (I'm a little OCD, but I try to keep it under control.)

What Joanna Gaines doesn't show you is what a wall will look like 10 years from now. She started using shiplap as a material out of budgetary necessity. It was common to find in her area of the country in lower end houses. And, her clients had very limited budgets. She made what she found a feature. Adaptive reuse.

Remember, the paneling that she encountered had cured to a very stable state. Also, the wood tended to be old growth wood and much more stable than what we can find today. Shiplap is like any paneling. It will cost you double for the material and triple for the installation. Then you have to paint, stain or seal it. It's costly. I suggest to those that want this look, do one feature wall and drywall the rest. You get the vibe without the enormous cost.

Shiplap was NEVER a common material in Texas. She used it for TV, and she was copying home decorating bloggers from around 2000.

You are foolish if you don’t prime all sides—just like people who don’t finish the back of cedar siding but finish the front. That’s if you insist on using this material. Which I hope you won’t.