SeeMyQuilt
Strips & logs · Beginner · 9" finished

9 inch Rail Fence, Four Units quilt block

Cutting chart, piecing steps and yardage for a Rail Fence, Four Units block that finishes at 9". The block is a 6 × 6 grid and each cell finishes at 1 1/2".

Finished block 9" × 9". Unfinished 9 1/2" × 9 1/2".

Cutting chart for one block

FabricCutSizeThen
Main4 rectangles5" × 2"–
Background4 rectangles5" × 2"–
Accent4 rectangles5" × 2"–

How to piece it

  1. Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
  2. Lay all the pieces out as in the diagram. The block is a 6 × 6 grid, and each cell finishes at 1 1/2". Sew neighbouring pieces into sections, then the sections into rows, pressing seams in opposite directions from row to row.
  3. Join the rows. The block should measure 9 1/2" now and 9" once it is sewn into the quilt.

Yardage for a quilt of 9" Rail Fence, Four Units blocks

Quilt sizeBlocksFinished sizeMainBackgroundAccentBorder & bindingBacking
Baby3 × 5 (15)33" × 51"1/2 yd1/2 yd1/2 yd7/8 yd1 3/4 yd
Lap5 × 6 (30)51" × 60"1 yd1 yd1 yd1 1/8 yd4 yd
Throw6 × 7 (42)60" × 69"1 3/8 yd1 3/8 yd1 3/8 yd1 3/8 yd4 1/2 yd
Twin7 × 10 (70)69" × 96"2 1/4 yd2 1/4 yd2 1/4 yd1 5/8 yd6 yd
Queen10 × 10 (100)96" × 96"3 1/8 yd3 1/8 yd3 1/8 yd1 7/8 yd8 3/4 yd
King11 × 11 (121)105" × 105"3 3/4 yd3 3/4 yd3 3/4 yd2 yd9 1/2 yd

Blocks side by side with a 3" border, 2 1/2" binding, 42" usable width and 10% extra.

What a lap quilt looks like

5 × 6 blocks, 51" × 60" with border.

This diagram uses plain colors. To see the quilt in your own fabrics, with sashing or on point, use the tool below: tap a fabric and choose a photo.

6" Rail Fence, Four Units12" Rail Fence, Four Units15" Rail Fence, Four UnitsAll Rail Fence, Four Units sizes

See it in your own fabrics

1. Your fabrics (tap a fabric, then choose a sample or your own photo)
2. Block
3. Quilt size
4. Block size
5. Setting

What to buy

FabricYardageCut

Based on 42" usable fabric width, 1/4" seams and 10% extra. Your photos stay on your device.

Questions

What do I cut for a 9 inch Rail Fence, Four Units block?

4 main rectangles at 5" × 2"; 4 background rectangles at 5" × 2"; 4 accent rectangles at 5" × 2".

What size is the block before it is sewn into the quilt?

9 1/2" square. It finishes at 9" once the seams on all four sides are sewn.

How much fabric for a throw quilt of 9 inch Rail Fence, Four Units blocks?

42 blocks make a 60" × 69" quilt. Buy 1 3/8 yd of main, 1 3/8 yd of background, 1 3/8 yd of accent and 1 3/8 yd of border & binding, plus 4 1/2 yd for the backing.