Common Grommet Questions
See below for answers to some common questions about grommets.
The small but mighty grommet is a piece of hardware used to reinforce holes in fabric. Grommets are metal rings paired with coinciding washers that engage with each other on either side of the piece of fabric (sold in sets through Trivantage®).
While there is a lot out there to choose from, certain manufacturers make stable metal grommets specially built for heavy-duty uses. There are several types of grommets and washers, depending on application and size demands. They can be used in tents and tarps, industrial covers, boat covers and other marine uses, custom awnings, shade sails, vinyl banners and flags, grommet curtains, drapery, outdoor upholstery, home decor including drapery, and more.
See below for answers to some common questions about grommets.
Grommets and washers are assigned a standard sizing number from #00 to #4. Keep in mind, though, sizing is slightly different between plain/tooth and spur grommets/washers. Take care in selecting the properly sized tools for the types of grommet and washers you’re installing. What size grommet you need will depend on the project.
For example, a #0 Spur Washer has an approximate inner diameter (ID) of 5/16”, therefore, will pair with a #1 Hole Punch or Cutter (not a #0, which makes a 1/4” hole)
See grommet size chart below for corresponding sizes (in inches).
You’ll find grommets and washers in a few different materials, each containing its own benefits. The following are four of the most common choices.