How can I make a rustic bedroom wall cheaply?

As long as you have the ends trimmed neatly, I don't think it would. One thing I would keep in mind for this type board is the rough texture and the dust aspect. You might want to try and put a sealer on them. Are you thinking of putting up similar to ship lap or like a fence? I think that would also make a difference in the finish appearance. I would go with one accent wall rather than the entire room.

Only you can answer that...it's your opinion that matters! I would nail one board on the wall you plan on doing (at eye level or above since that's the area you'll be viewing most often) and leave it up for a few days to see it various natural light conditions. Then ask yourself if it pleases you. If it does, then proceed!

If you want a rustic look, I think this is a great idea. Ask yourself what finish you want. When I put shiplap up, I thought I was going to stain it. Then, I realized I wanted a lightet, brighter look, so I painted it a soft ivory. Eventually, I went lighter with white. I loved both, and was glad I committed to painting. It is much easier once you decide the finish you want. Cedar has a distinctive fragrance, so you want to consider if you want that or not. You could live with it for awhile, first. That was what I did. I would sand the planks before putting them up.

I got some decals from amazon.com and they look like different shades of barnwood. I took apart an old box spring and saved the wood from the frame. I cut to size and stained the wood and used that as a border to frame the barnwood decals. So just have the price of the decals and the stain since the wood was free. Then placed a metal ram cut out in the middle. Did all for less then $20 and it is original and turned an unused over looked area into a nice looking part of my hallway.

If you do use fence boards - make sure they are untreated. Pressure treated boards are not considered safe for interior use. :)

Might check the price of cedar closet lining boards, they are thinner and might be cheaper.... the bonus is they are smooth/finished. Cedar is the most expensive wood to use for a rustic wall.

Lowes now sells panels that look rustic! It's super cheap and huge! Here is a link for one.

https://www.lowes.com/pd/48-in-x-8-ft-Smooth-Weathered-Pine-MDF-Wainscot-Wall-Panel/1000437575

I used it here in those post (as a backdrop for the bed I painted.)

https://letspaintfurniture.com/how-to-distress-furniture-with-chalk-paint/

I would suggest sanding them first for a more finished look. The brand Cedar Safe sells tounge and groove cedar planks that we used on a ceiling - https://www.charlestoncrafted.com/cedar-ceiling/

I love bead board. 4' x 8' piece under $20. People think you can just attach wood any place on a wall. You really should use studs unless you have perfectly straight walls and a good nail gun. You also must be careful to know what you are doing to not hit electrical wires behind the walls especially around receptacles.

Home and Garden DIY Ideas | Hometalk

Hello, you can use peel and stick to make the rustic wall,

https://www.amazon.ca/RoomMates-RMK9052WP-Distressed-Stick-Decor/dp/B01IDS62K2/ref=asc_df_B01IDS62K2/?tag=googleshopc0c-20&linkCode=df0&hvadid=293036915488&hvpos=&hvnetw=g&hvrand=466525304948550432&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001397&hvtargid=pla-310840063560&psc=1