Counter height patio furniture is great for those who like to eat or drink without having to bend over a table. However, they should be used with caution if there are children using them. Small children could fall off of the chairs and possibly get hurt. There are stools that you can get that have backs on them that sit at counter height. These would be best for people who enjoy this type of seating.
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You can find a variety of office chairs for those with bad backs at office supply stores such as Office Depot and Staples. Be sure to look for chairs that offer superior back support.
The Init Leather Office Chair has a nice padded back.
Their are office chairs with speaker, but not high backs. Their are many companies that do custom office chairs that could easily do that with you.
There are some great ergonomic chairs that you can get. A couple of the best chairs are the Embody and Life by Formway. You can buy them at several stores online like sit better and the bad back store.
The Wooden Ergonomic Kneeling Posture Office Chair With Reclining Back is an option.
The angle of the backs of chairs are at an obtuse angle to the seat. There are some straight back chairs that are 90 degrees but most are over 90 degrees.
Laz-Z-Boy is currently considered the market leader when it comes to recliners. They make chairs for people with bad backs as well.
Human Touch massage chairs can be purchased directly from the manufacturer on the Human Touch website. Other retail stores such as Back Store, which specializes in furniture to support backs, also sell the chairs.
Chairs are typically labled big and tall office chairs by their high backs and exlarge sitting area. You must special request such items from your local office supply store. By the way, you will have to pay more.
There is many places where you can find office chairs for bad backs. If you have a bad back, and you work in an office, and you would like to try and get a new chair for that bad back of yours I would suggest you take a look at this website: http://www.catalogs.com/office-supplies/office-chairs-for-bad-backs.html
A chair rail is designed to protect the dining room walls against chairs. So you want the rails to be the appropriate height and thickness to meet the backs of chairs before they could damage the walls.