The sizes included range from 2 inches to 12 inches, so it has every size you will need when buying or cutting pieces of fabric. I’ve already started my starburst quilt and have 2 squares complete, so making the triangle bigger is not an option for me. Our calculator gives you the option of calculating the exact cost of materials. If you need an unusually sized HST (5 3/8″?? 3 7/8″??? But I like having the lines there to insure accuracy.) To figure out what size rectangles to cut, take the FINISHED size of your HRT unit, and add 1 1/2″ to the short measurement, and 1 3/4″ to the long measurement. Your directions and PDF are exactly what I need !!!!!!!!!!! If you liked this Area of a Half Circle Calculator please try some of our other Area Calculators. Choose the measurement in the second white column if you are making them larger for trimming. 6 Methods for Making Half Square Triangles for Your Quilt. The HST, or Half Square Triangle, is an essential building block used in many traditional quilt designs. Can you help me with this dilemma? Thank you for the HST cheat sheet. half square triangles-these can be … I promise...a tutorial following. Some of the numbers can’t be read. ), I’ve also included the FORMULA at the bottom of the chart for calculating what size squares to cut. Thank you for this cheat sheet. Thank you so much. I don’t know all the details behind why restarting the computer works, but it does for me. The half square triangle unit is probably the most commonly used patch in a quilt block -- well it is second only to the square. thank you! These triangles are usually made up of different fabrics that contrast each other in some way, such as light and dark, solid and patterned, or complementary colours. Here is my cut down version for making Half Square Triangles. I re-uploaded the file to see if that helps. My name is Jacquelynne, and I just like to make stuff. This will come in real handy! The solution is pretty easy. Pin the two squares together right sides facing, and sew around the perimeter Place the two squares together, right sides facing each other. These half square triangles can be made in any size. I would have to say that HST quilt blocks are my favourite for this very reason. So this corner square was 4″, and my half square triangle is 3″. I appreciate this so much, you have made things so much easier for me. Step 5 - Trim the two resulting half square triangles to the correct size. Half Square Triangle Calculator for Quilting Projects - staceymosier/half-square-triangle-calculator Wonder if I am the only one who can’t print it off? Fingers crossed. Quarter square triangles are one of the basic building blocks in quilting. 9 of the 16 layouts in this article. Also explore many more calculators covering geometry, math and other topics. 6 inches + 1-3/4 inches = 7-3/4 inches. *** How to Cut HSTs from Strips Using a Half Square Triangle Ruler. You make it so easy to understand that I can’t fail when making HST’s now. You are so thoughtful to share this info. Thank you for your cheat sheet and clear instructions. Thanks. This method also maintains the grainline of the fabric so the edges of your finished half square triangles will be on grain. Did you download the PDF version of the cheat sheet? Thanks for the work put into working out the formulas. Another way to calculate the exterior angle of a triangle is to subtract the angle of the vertex of interest from 180°. So let’s say you need your HST’s to be 5″ in your quilt- that means you need them to be 5 1/2″ with the seam allowance. For your practice HST, let's make 3 x 3 inch HST units. I found this nifty little ruler which makes it really easy to draw your lines. Let’s chat about Half Rectangle Triangles or HRT’s. Pin 2 squares RIGHT SIDES TOGETHER. But with larger half square triangles, you end up with a nice bonus unit with little extra work. I am working on a quilt and trying to figure out block sizes. To figure out your own dimensions for making 4 half square triangles at a time you will need to know either the beginning square size you will be cutting or the size of the unfinished block you need. Thank you for this cheat sheet! Thank you so much for the HST sheets and charts! Often I think of the words at the bottom of this page. Thank you Jacqueline – this chart is wonderful! Male Female Age Under 20 years old 20 years old level 30 years old level 40 years old level 50 years old level 60 years old level or over Occupation Elementary school/ Junior high-school student When I was somewhat new to quilting I decided to go with the half square triangle for the basis of a quilt for one of my grandsons. 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