If you are a beginner stitcher prefer to use Aida cloth. Its weave forms clearly distinctive squares in the fabric, which eases the placing of stitches.
Another option is using waste canvas. It forms a grid for stitching which can be easily removed later.
Material Type: Aida Generic White
Sewing Count: 14/inch or 55/100mm
Design Size: 214 x 177 stitches
Sewn Design Size: 15.3 x 12.6 inches or 388 x 321 mm
Suggested Material Size: 21.2 x 18.5 inches or 538 x 471 mm
Stitch Style: Cross-stitch Using 2 strands