Ever have a conversation about a dining chair and struggle with terminology in your discusion. Well, here is a nice picture which shows a dining room chairs anatomy. Some of the most important dining chair parts are the crest rail, ear, front seat rail, side seat rail,slip seat, pierced splat, shoe and knee.  You might want to know these names next time you have talks about your mahogany dining room chairs. 
More importantly, you should also get familiar with the types of upholstery which are available on different model dining room chairs.   Some chairs have slip seats and some do not. If you look carefully at the chair from a picture, you should be able to determine whether the dining room chair is upholstered or if it has a slip seat or slip cushion. Slip seats are always very easy to change upholstery. 4 screws on the under side of the chair will remove the slip seat for fabric change. 

Fully upholstered dining room chairs will look like the picture below.  This is designer furniture..more money and fancier look.  Harder to maintain or change this fabirc.  Both of these examples show brass nail trim. Not all upholstered chairs are finished like this. Some upholstered dining room chairs will have a sigle or double welting.

Upholstered dining chairs with brass nail trim


Upholstered dining chairs with brass nail trim


Upholstered dining room chairs with double welt trim.  This trim is available on most of our chairs and this finishing trim does not require a special frame.  In most instances, with a chair like this, you have a choice between, nails, double welt or gimp (not shown) when you re-cover the chairs.



Upholstered dining room chair, shown without finished fabric. This picture shows the "groove" which is needed to get a single welt into place correctly. We do not offer this type of trim anymore, because it is limiting.  Once a chair is built with grooves like this, you cannot trim with nails, gimp or double welt.