You can find fabric for cross stitching in different sizes, colors and types.
Aida, linen and evenweave are the most common types of cross-stitch fabric. The standard Aida fabric is a good fabric for beginners because the holes are large and easy to see.
Note - it is the number of holes per inch that determines the size of your stitches.
Material Type: Aida Generic White
Sewing Count: 14/inch or 55/100mm
Design Size: 22 x 23 stitches
Sewn Design Size: 1.6 x 1.6 inches or 40 x 42 mm
Suggested Material Size: 7.5 x 7.5 inches or 190 x 192 mm
Stitch Style: Cross-stitch Using 2 strands