Beadboard Wall Paneling

It's less formal than raised panels, but is correct in your house in a country or rustic environment. Beadboard is versatile enough which it looks good in just about any room at home.
You will get it in 4 ft. by 8 ft. panels inside big home centers like Home Depot. Usually, the panels run about $20 each, are 3/8" thick, and they are created from pine. This is a soft wood that may expand and contract with changing seasons, so paint the panels before you decide to add the lower and top rails.
The beads on these panels are about 1 1/2" wide. If you want more width, you need to by tongue and groove boards and assemble them individually. If you go this route, the price will be greater, and the installation time will be more, however you have much more choice regarding look with the paneling once it's finished.
I have visited several historic buildings through the years, and also the Early American carpenters were pretty imaginative regarding how they assembled beaded wall panels. I've seen three to four widths combine in the repetitive design; alternating 2 widths; and I saw a place where 8" wide planking was applied one wall and two 1/2" wide beadboard was on another wall.
Having imagination about these products is well and good, however the steady, constant repetition brings feeling of uniformity that I believe is exactly what most people look for. Height is yet another aspect in places you could have lots of flexibility.
The minimum height ought to be "chair rail height" or 34" across the floor. However, your decorative scheme could be better served if the panels were 40" high, or 48", or 60", or anything between.
The best thing to do is always to make templates or sample pieces out of cardboard or some other inexpensive material. Tape them to the wall and then leave them there for a couple of days. Then repeat, employing a different height. Decide which that suits you best, and choose it.
Your bottom and top rails should be notched out in the back so that the panels fit in the rails as well as the rails touch the walls. This will eliminate gaps between the rails and the walls.
Some from the most popular ways people use beadboard are:
To cover entire interior walls.
As wainscoting on either interior or exterior walls.
To cover ceilings - inside coffers, over a small part of a room to discover it from the rest with the room, or as porch ceilings.
As backsplashes in kitchens.
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As recessed panels in cabinet doors.
In conclusion, beaded wall paneling has stood the test of your energy. It has been around for hundreds of years and it is versatile enough to get many applications. Beadboard has visual appearance and charm, and it is priced for anybody's pocketbook.