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London Roads Quilt Block Pattern From our Free Quilt Block Pattern Library

London Roads Quilt Block Pattern tutorial

The London Roads quilt block pattern is made from quarter square triangle and Rail Fence units and a solid center square. A great combination for the beginning quilter!

It is a two fabric block where the placement of the fabrics creates 'arrows'.

No special tools are needed, just your basic quilting supplies and rulers.

Skill Level: Beginner

Grid: 3x3

AKA: Arrow, At the Square, Betty's Choice, Colorado's Arrowhead, Fireside Visitor and Rope and Anchor

On this page you'll find cutting and piecing instructions, as well as additional block sizes to make.

Construction Instructions

Block Size:

Grid Size:

9" finished (9-1/2" unfinished)


London Roads quilt block drawing

All seams are 1/4".

When you are instructed to press, first press the pieced unit flat to set the seam. Then open the patch, pressing from the front. Seam allowances are pressed to the dark fabric unless otherwise noted.

Click here for cutting instructions for additional block sizes.

Step 1: Cut the fabric patches

For QSTs, I prefer to cut my patches 'over-sized' and then trim the unit to the correct size after stitching. The size of the over-sized patches I used in this tutorial are in parentheses below ().

This block requires a light and a dark fabric.

(Black and
white dot)

Two 4-1/4"(4-1/2") squares
One 1-1/2" x 14-1/2" strip
One 3-1/2" square

(Red print)

Two 4-1/4"(4-1/2") squares
Two 1-1/2" x 14-1/2" strips

Step 2: Assemble the units

Stitch the Rail Fence units

The strips are cut an extra 1/2" long to allow for squaring the strip sets once they are stitched.

Align the long edges of one dark and one light strip. Stitch.

Stitch strip sets


Align the long edge of the remaining dark strip with the light strip of the pieced unit. Stitch.


At the cutting mat, square off the end of the strip set.

Square up the end of the strip set

Sub-cut it into 3-1/2" squares.

Sub-cut the strip set

Stitch the QSTs

We'll use the quick pieced method to make these units.

With a pencil mark a diagonal line from corner to corner on each of the light 4-1/2" squares.

With RST, align a light square with a dark square. Stitch on both sides of the line with a 1/4" seam.

Cut this unit apart on the drawn line.

Repeat for the remaining pair.


At this point you have four half square triangles.

Draw a diagonal line on the back of two of these units that bisects the seam. (You can see it in the photo below.)

With RST, align two units with the light fabric of one to the dark fabric of the other. Nest the seam allowances. Pin if needed.

Stitch 1/4" away from the drawn line on both sides.

Stitch on both sides of the line

Helpful Tip

As you can see, my HSTs were a little sloppy, but because I cut those original squares a 1/4" over-size it all works out in the end (you'll see in the finished block).

Cut apart on the drawn line.

Repeat for the remaining pair.

Press with the seam allowance towards either side or open.

For a refresher on trimming QST units to size, click here to review this technique in Step 8 of Learn to Make Quarter Square Triangles. The center measurement for our unit here is 1-3/4".

Step: 3 Assemble your London Roads quilt block

Layout all the units paying particular attention to the positioning of the corners.

Layout the units in order

Stitch the blocks into rows. The black arrows show the direction of the seam allowances. Pin as needed.

Arrows show the direction to press the seam allowances

Nest the seam allowances to help you match the seams as you pin the rows together.

Nest the seam allowances to make it easier to match the seams

Stitch the rows together. 

Sew the rows together

Press. For the flattest block, check out our Best Pressing Technique.

Your finished London Roads quilt block looks like this.

The finished London Roads quilt block

Cutting Chart of Other Block Sizes

You may want to over-size your quarter square triangles just like the tutorial above. To so do, add 1/4" to the measurements for those squares indicated with a ** below. Trim to size after stitching.

Notice that the finished size of the block is dependent on the size of the strips in the Rail Fence units. The 'grid size' must be a divisible by 3 AND be a rotary cutter friendly number (unless you want to paper piece the Rail Fence portion.)

Finished Block Size
Fabric Qty 4-1/2” 11-1/4” 13-1/2”
Light** 2 2-3/4” sq 5” sq 5-3/4” sq
Light 1 8-1/2” x 1” 17-1/2” x 1-3/4” 20-1/2” x 2”
Light 1 2” 4-1/4” sq 5”
Dark** 2 2-3/4” sq 5” sq 5-3/4” sq
Dark 2 8-1/2” x 1” 17-1/2” x 1-3/4” 20-1/2” x 2”
Grid Size: 1-1/2” 3-3/4” 4-1/2”
QST midpoint
for trimming
1” 2-1/8” 2-1/2”

Ready for more?

Your quilt block is finished!

Congratulations! You've finished your London Roads quilt block.

When you're ready for more, do visit our Free Quilt Block Pattern Library for your next quilting adventure.

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