Hello,

The fabric manufacturer we go through does not have 11ct. Black Aida but I did a google search and found some stores that have it. I am not sure they are wholesale or retail stores but you can definitely check them out and contact them.

http://www.stitchers-paradise.com/fabrics/AidaFabricColorChartZweigart.html

https://www.amazon.co.uk/11CT-Aida-Cloth-Black-Fabric/dp/B00EHIQ2SK

http://www.thestitchersgarden.com/shop/Fabric/Aida/11-ct.htm

http://www.ebay.com.au/itm/11CT-14CT-Aida-Cross-stitch-Fabric-White-Black-150cm-width-n-meter-/262381101816

~Kristi @ ECS