Hot Ruler

April 7, 2025 by
Erin W

Getting the perfect measurement and press on a seam, hem, or corner can be tedious, but this all-in-one tool will give you accurate measurements and crisp edges every time! We love the Hot Ruler! It's heat-resistant, super thin, and anti-slip, making it an irreplaceable tool in our studio and yours!


Available in Two Sizes

Hot Ruler
10" x 2-1/2"

The Hot Ruler is marked with accurate inch increments on all four edges, as well as 1/4", 1/2", and 3/4" markings on the short sides for precise seam measurements! The grid markings make it easy to keep your fabric straight, preventing messy pressing.

The Hot Ruler is made from heat resistant-nylon, so you can press directly on it. Heat-resistant means no more burnt fingers! After normal pressing, it may be warm to the touch but won't burn your fingers like a metal ruler would. The Hot Ruler is slip-resistant, but not sticky. This is so convenient because it won't slide around while ironing, but you can easily pick it up and move it for those extra long seams.

The ultra-thin material gives you a super crisp and precise edge. We love using the Hot Ruler and Flatter Smoothing Spray together to get the best press we can. This winning combination always keeps those hems and seams in place!

TIP: The Hot Ruler is perfect for needle turn appliqué... without the needle turn! Just press any straight sides or corners with the Hot Ruler and Flatter first to make cotton appliqué a breeze!

This tool is a master of mitered corners! First, fold the corner of your fabric so it is lined up with the diagonal line on the ruler and press.

Next, fold the fabric on one of the sides adjacent to the corner up onto the Hot Ruler and press.

TIP: For even more amazing results, use your favorite stiletto (we're big fans of the Hold It Precision Stiletto) to keep your fabric in place while you fold up the second side of the corner!

Repeat on the other side of the corner.

The Hot Ruler makes it SO simple to create a perfect, crisp corner!


Create

Check out the Hot Ruler's sister tool below... the Hot Hemmer! It's ideal for projects that don't need as long of a straight edge, where the extra length of the Hot Ruler would get in the way.

We love anything that makes pressing quicker and easier! See more of our favorite pressing tools below!