below:
https://www.spoonflower.com/collections/676801-checkers-by-pattern_talent checker is 1 1/8 inch or 3 cm (on fabric!) , larger on wallpaper. please order a swatch to make sure it works for your project
All Products forHand Drawn Checkerboard BW
bypattern_talent
Wallpaper
Kitchen & Dining
Bedding
Living & Decor
Fabric
About the Design
hand drawn black and white checkerboard. More colors and sizes in my Checkers collection, link