Union Square quilt pattern
12" Union Square blocks: a center square ringed by flying geese and half-square triangles, set side by side with a 4" border.
The queen size is 92" × 104" with 56 blocks. Each size below has its own fabric list, cutting and backing, worked out for 42" fabric with ¼" seams, 10% extra and yardage rounded up to the next ¼ yard.
| Size | Finished | Blocks | Top fabric |
|---|---|---|---|
| Crib | 44" × 56" | 12 | 4½ yd |
| Throw | 56" × 68" | 20 | 6¾ yd |
| Twin | 68" × 92" | 35 | 10¾ yd |
| Full | 80" × 92" | 42 | 12¾ yd |
| Queen | 92" × 104" | 56 | 16½ yd |
| King | 104" × 104" | 64 | 18¾ yd |
The Union Square block page has the cutting for single blocks in four sizes and the piecing step by step, with a drawing of every unit.

Crib Union Square quilt, 44" × 56"
12 blocks of 12", 4 rows of 3, 4" border.

| Background, BorderNavy sprig tree | 2¼ yd | |
| MainSage leaf | 1½ yd | |
| Centers, BindingEvergreen vine | ¾ yd | |
| Backing2 panels 52" long, seams across; or 1½ yd of 108" wide | 3 yd | |
| Batting72" × 90" | Twin |
Cutting
- Background, Border: Cut 3 strips 2½" × WOF. Subcut 48 squares 2½". Cut 4 strips 2⅞" × WOF. Subcut 48 squares 2⅞" for the half-square triangles. Cut 6 strips 4½" × WOF. Subcut 96 rectangles 2½" × 4½" for the flying geese. Cut 5 strips 4½" × WOF. Join end to end. Cut 2 at 48½" and 2 at 44½".
- Main: Cut 4 strips 2⅞" × WOF. Subcut 48 squares 2⅞" for the half-square triangles. Cut 12 strips 2½" × WOF. Subcut 192 squares 2½" for the flying geese. Cut 3 strips 2½" × WOF. Subcut 48 squares 2½".
- Centers, Binding: Cut 2 strips 4½" × WOF. Subcut 12 squares 4½". Cut 6 strips 2½" × WOF. Join into one 212" strip.
Putting it together
- Make 12 Union Square blocks, 12" finished (12½" with seam allowance). That takes 96 half-square triangles and 96 flying geese.
- Lay out the blocks in 4 rows of 3. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (52" × 64"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.
Throw Union Square quilt, 56" × 68"
20 blocks of 12", 5 rows of 4, 4" border.

| Background, BorderNavy sprig tree | 3¼ yd | |
| MainSage leaf | 2½ yd | |
| Centers, BindingEvergreen vine | 1 yd | |
| Backing2 panels 64" long, seams across; or 2 yd of 108" wide | 3¾ yd | |
| Batting72" × 90" | Twin |
Cutting
- Background, Border: Cut 5 strips 2½" × WOF. Subcut 80 squares 2½". Cut 6 strips 2⅞" × WOF. Subcut 80 squares 2⅞" for the half-square triangles. Cut 10 strips 4½" × WOF. Subcut 160 rectangles 2½" × 4½" for the flying geese. Cut 6 strips 4½" × WOF. Join end to end. Cut 2 at 60½" and 2 at 56½".
- Main: Cut 6 strips 2⅞" × WOF. Subcut 80 squares 2⅞" for the half-square triangles. Cut 20 strips 2½" × WOF. Subcut 320 squares 2½" for the flying geese. Cut 5 strips 2½" × WOF. Subcut 80 squares 2½".
- Centers, Binding: Cut 3 strips 4½" × WOF. Subcut 20 squares 4½". Cut 7 strips 2½" × WOF. Join into one 260" strip.
Putting it together
- Make 20 Union Square blocks, 12" finished (12½" with seam allowance). That takes 160 half-square triangles and 160 flying geese.
- Lay out the blocks in 5 rows of 4. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (64" × 76"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.
Twin Union Square quilt, 68" × 92"
35 blocks of 12", 7 rows of 5, 4" border.

| Background, BorderNavy sprig tree | 5¼ yd | |
| MainSage leaf | 4¼ yd | |
| Centers, BindingEvergreen vine | 1¼ yd | |
| Backing2 panels 100" long, seams down; or 2¼ yd of 108" wide | 5¾ yd | |
| Batting90" × 108" | Queen |
Cutting
- Background, Border: Cut 9 strips 2½" × WOF. Subcut 140 squares 2½". Cut 10 strips 2⅞" × WOF. Subcut 140 squares 2⅞" for the half-square triangles. Cut 18 strips 4½" × WOF. Subcut 280 rectangles 2½" × 4½" for the flying geese. Cut 8 strips 4½" × WOF. Join end to end. Cut 2 at 84½" and 2 at 68½".
- Main: Cut 10 strips 2⅞" × WOF. Subcut 140 squares 2⅞" for the half-square triangles. Cut 35 strips 2½" × WOF. Subcut 560 squares 2½" for the flying geese. Cut 9 strips 2½" × WOF. Subcut 140 squares 2½".
- Centers, Binding: Cut 4 strips 4½" × WOF. Subcut 35 squares 4½". Cut 8 strips 2½" × WOF. Join into one 332" strip.
Putting it together
- Make 35 Union Square blocks, 12" finished (12½" with seam allowance). That takes 280 half-square triangles and 280 flying geese.
- Lay out the blocks in 7 rows of 5. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (76" × 100"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.
Full Union Square quilt, 80" × 92"
42 blocks of 12", 7 rows of 6, 4" border.

| Background, BorderNavy sprig tree | 6 yd | |
| MainSage leaf | 5¼ yd | |
| Centers, BindingEvergreen vine | 1½ yd | |
| Backing3 panels 88" long, seams across; or 2½ yd of 108" wide | 7½ yd | |
| Batting90" × 108" | Queen |
Cutting
- Background, Border: Cut 11 strips 2½" × WOF. Subcut 168 squares 2½". Cut 12 strips 2⅞" × WOF. Subcut 168 squares 2⅞" for the half-square triangles. Cut 21 strips 4½" × WOF. Subcut 336 rectangles 2½" × 4½" for the flying geese. Cut 8 strips 4½" × WOF. Join end to end. Cut 2 at 84½" and 2 at 80½".
- Main: Cut 12 strips 2⅞" × WOF. Subcut 168 squares 2⅞" for the half-square triangles. Cut 42 strips 2½" × WOF. Subcut 672 squares 2½" for the flying geese. Cut 11 strips 2½" × WOF. Subcut 168 squares 2½".
- Centers, Binding: Cut 5 strips 4½" × WOF. Subcut 42 squares 4½". Cut 9 strips 2½" × WOF. Join into one 356" strip.
Putting it together
- Make 42 Union Square blocks, 12" finished (12½" with seam allowance). That takes 336 half-square triangles and 336 flying geese.
- Lay out the blocks in 7 rows of 6. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (88" × 100"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.
Queen Union Square quilt, 92" × 104"
56 blocks of 12", 8 rows of 7, 4" border.

| Background, BorderNavy sprig tree | 7¾ yd | |
| MainSage leaf | 7 yd | |
| Centers, BindingEvergreen vine | 1¾ yd | |
| Backing3 panels 100" long, seams across; or 3¼ yd of 108" wide | 8½ yd | |
| Batting120" × 120" | King |
Cutting
- Background, Border: Cut 14 strips 2½" × WOF. Subcut 224 squares 2½". Cut 16 strips 2⅞" × WOF. Subcut 224 squares 2⅞" for the half-square triangles. Cut 28 strips 4½" × WOF. Subcut 448 rectangles 2½" × 4½" for the flying geese. Cut 9 strips 4½" × WOF. Join end to end. Cut 2 at 96½" and 2 at 92½".
- Main: Cut 16 strips 2⅞" × WOF. Subcut 224 squares 2⅞" for the half-square triangles. Cut 56 strips 2½" × WOF. Subcut 896 squares 2½" for the flying geese. Cut 14 strips 2½" × WOF. Subcut 224 squares 2½".
- Centers, Binding: Cut 7 strips 4½" × WOF. Subcut 56 squares 4½". Cut 10 strips 2½" × WOF. Join into one 404" strip.
Putting it together
- Make 56 Union Square blocks, 12" finished (12½" with seam allowance). That takes 448 half-square triangles and 448 flying geese.
- Lay out the blocks in 8 rows of 7. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (100" × 112"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.
King Union Square quilt, 104" × 104"
64 blocks of 12", 8 rows of 8, 4" border.

| Background, BorderNavy sprig tree | 8¾ yd | |
| MainSage leaf | 8 yd | |
| Centers, BindingEvergreen vine | 2 yd | |
| Backing3 panels 112" long, seams across; or 6¼ yd of 108" wide | 9½ yd | |
| Batting120" × 120" | King |
Cutting
- Background, Border: Cut 16 strips 2½" × WOF. Subcut 256 squares 2½". Cut 19 strips 2⅞" × WOF. Subcut 256 squares 2⅞" for the half-square triangles. Cut 32 strips 4½" × WOF. Subcut 512 rectangles 2½" × 4½" for the flying geese. Cut 10 strips 4½" × WOF. Join end to end. Cut 2 at 96½" and 2 at 104½".
- Main: Cut 19 strips 2⅞" × WOF. Subcut 256 squares 2⅞" for the half-square triangles. Cut 64 strips 2½" × WOF. Subcut 1024 squares 2½" for the flying geese. Cut 16 strips 2½" × WOF. Subcut 256 squares 2½".
- Centers, Binding: Cut 8 strips 4½" × WOF. Subcut 64 squares 4½". Cut 11 strips 2½" × WOF. Join into one 428" strip.
Putting it together
- Make 64 Union Square blocks, 12" finished (12½" with seam allowance). That takes 512 half-square triangles and 512 flying geese.
- Lay out the blocks in 8 rows of 8. Sew the rows, pressing the seams in opposite directions from row to row, then join the rows.
- Add the 4" border: measure through the middle of the quilt, sew strips to the sides first, then to the top and bottom.
- Layer the backing (112" × 112"), batting and top, quilt, and trim. Join the binding strips end to end, press them in half lengthwise and sew to the front.

See this quilt in your own fabric
With the cut list for your size, checked against your stash.