Half Square Triangle Units
- Pair a large background square and a T square of the same size. Use my easy sandwich method to make two half square triangle units from the squares:
- 12" Block - completed units should measure 8-1/2" x 8-1/2"
- 6" Block - completed units should measure 4-1/2" x 4-1/2"
- 3" Block - completed units should measure 2-1/2" x 2-1/2"
- 12" Block - completed units should measure 8-1/2" x 8-1/2"
- Pair a smaller background square with a T square of the same size. Sew together as you did the larger squares to create two half square triangle units:
- 12" Block - completed units should measure 4-1/2" x 4-1/2"
- 6" Block - completed units should measure 2-1/2" x 2-1/2"
- 3" Block - completed units should measure 1-1/2" x 1-1/2"
- 12" Block - completed units should measure 4-1/2" x 4-1/2"
- Combine four more small background squares with four T squares to make a total of ten smaller half square triangle units.
Assemble the T Quilt Block
Refer to the drawing above. Use a 1/4" seam allowance for all seams.
- Sew two smaller half square triangle units together in a vertical column as shown upper left. Press seam allowance towards the darker fabric.
- Sew the vertical column to the side of a larger half square triangle unit. The T fabrics should touch as shown. Press seam allowance towards the larger triangle unit.
- Sew three smaller half square triangle units into a horizontal row as shown above under the unit created in Step 2. Press seam allowances towards the right.
- Sew the Step 3 unit to the bottom of the Step 2 unit, matching edges and seam intersections. Repeat to make second block.
Press the quilt block. The 12" finished block should measure 12-1/2" square; the 6" finished block should measure 6-1/2" square; the 3" finished block should measure 3-1/2" square.
If your block is smaller than it should be, or skewed, press again and recheck. If it still isn't quite right, use my easy squaring-up method before sewing it to other blocks.
