Zweigart calls easy count fabric white but it more an off white (close to DMC 3865)
Fabric is pre-cut and serged. If you're wanting continuous yardage, please contact me before ordering so I can make sure I'm able to fulfill your request.
The gray grid marks every 10th thread.
If the grid needs to be washed out of the fabric, Zweigart recommends 40°C (104F) and 40 minutes in the washing machine. If some of the grid is still showing after washing the piece, wash it again. Zweigart claims it is important to wash the piece in a washing machine and not wash it by hand, but you can also try soaking your piece in a bath of about 90 degree water with a gentle cleaner like Oxyclean until the lines are gone (usually about one hour).