The Classic Cross Stitch fabric is Aida. This fabric comes in an evenweave with holes set in a 'per inch' count. The most common count for beginners is 14ct or 14 stitches to 1 inch.
There are 3 main counts 14ct, 16ct and 18ct and aida comes in a variety of colours.
* I prefer to not use the name Confederate Grey as I find the colour name to be outdated and offensive. I have listed this colour as Civil War Grey.