MEET OUR NEW, INNOVATIVE, CUSTOM-DESIGNED TOOL TO SOLVE ALL YOUR BUTTON SIZING NEEDS!

PATENT PENDING

Button Hole Sizing Tool

How To Use

It all began with an idea. How can we figure out what size button we need for our fiber arts project after creating the buttonhole? With this custom-designed tool its as easy as 1, 2, 3:

  1. choose millimeters or inches

  2. insert the tool into your knit or crocheted button hole until it no longer fits

  3. read the number on the step that is flush with the fabric… this is your needed button size!

(optional 4th step… come back to Tinkers Hollow to order your buttons!)

Shop Button Hole Sizing Tool Now

About Our Tool

This tool accommodates for fabric stretch (a necessary accommodation for knit fabrics compared to more anchored sewn buttonholes), recommends a button size that is 1/8in/4mm larger than the button hole (which is the standard knitwear button sizing recommendation for button size to hole size ratio), and uses a convenient step method which accounts for the width of most knit fabrics, while including both standard and metric sizing in one convenient tool.

This tool is the first of its kind and was invented by our proprietor, Anna Seibert. Patent Applications were filed in October of 2025 before introducing this tool to the market or sharing images of it online. Any similar tool claiming to be a button hole sizing tool is in violation of intellectual property rights and will be treated accordingly.