Turn Old Jeans into a Clothing-Inspired Denim Quilt

Do you have a pile of worn-out jeans taking up space? Put them to good use! This project turns old denim into a clothing-inspired quilt that measures approximately 56″ x 70″ [142.2 x 177.8cm] before quilting. The concept is clever, the fabric costs nothing, and the result is a truly one-of-a-kind keepsake.

The idea started simply enough: call some friends, collect their cast-off jeans, and see what happens. The response was generous. More jeans arrived than the project needed, and the pairs still in good condition went off to donation once the quilt was done. Avoid anything stained with paint or grease, but otherwise there is no need to be choosy about color or condition. In fact, the mix of washes and weights is what makes the finished quilt interesting.

materials

cutting and sewing tools

• 60mm ergonomic rotary cutter
• replacement rotary blades, 60mm (5-pack)
• double-sided rotary cutting mat, 24″ x 36″ [61 x 91.4cm]
• ruler, 8½″ x 24″ [21.6 x 61cm]
• ruler, 20½″ x 20½″ [52 x 52cm]
• dressmakers’ scissors, 8¼″ [21cm]
• iron
• quilting clips, small (12-pack)

notions

• old jeans (at least 7 pairs, ideally more); avoid paint-stained fabric
• denim thread, 12 shades (100m each)
• non-woven light-weight fusible interfacing, 20″ x 25 yds [50.8cm x 22.8m]
• faux leather labels (optional, for a decorative touch)
• quilt batting, low-loft, 90″ x 108″ [229 x 274cm]
• circle cutter (adjustable, for applique circles)
• safety pins, large (for basting)
• backing fabric of choice

Preparing the Denim: Cutting and Squaring the Panels

Start by cutting the legs off five pairs of jeans, right below the crotch seam. Use dressmakers’ scissors to open each leg along the inseam, giving you a flat panel to work with. Even after years of wear and washing, the outer seam on most jeans stays fairly straight. Use that outer seam as a guide to line up your ruler, then trim away the bottom hem.

Squaring the panels takes two rulers working side by side. Denim is wider than a single ruler, so butting two together and keeping them perfectly level is important. Align the rulers just below the inner seam, trim the top and one side, then reposition to align with those fresh edges and trim the remaining two sides. Repeat for a total of 14 pant legs. A 60mm rotary cutter handles this job much better than a smaller 45mm blade. Denim is thick and dense, and the metal hardware in jeans — zippers, buttons, grommets — dulls a blade fast. Keep extra blades on hand before you start.

Cutting the Blocks and Making the Most of Each Panel

With all 14 panels squared, it is time to cut the blocks. The narrowest pant leg determined the block size for the whole quilt: 14″ x 14″ [35.6 x 35.6cm] squares. That size fits every panel with room to spare. Cut one 14″ [35.6cm] square from each panel.

From the leftover fabric on each panel, cut a 7¼″ x 14″ [18.4 x 35.6cm] rectangle. These rectangles get mixed and matched into pairs and sewn together to make six more 14″ [35.6cm] blocks. Together, the squares and the paired rectangles give you the 20 blocks needed for this quilt.

When cutting, there is no need to keep a pant leg seam centered in each block. If a seam sits more to one side, that is perfectly fine. It adds to the handmade character of the finished piece.

Two of the rectangles had flaws: one had a hole, the other a rip. The solution was easy. Sew them together with the flaw toward the center seam, so it ends up hidden. For any remaining thin spots or damaged areas, cut a denim circle using an adjustable circle cutter set to approximately 6″ [15.2cm]. Back the damaged area with fusible interfacing first, then fuse the circle right on top. Finish with a machine blanket stitch in a contrasting thread color from the denim thread collection. The result looks intentional and adds visual interest rather than hiding anything to be embarrassed about.

Completing the Quilt Top: Pockets, Clothing, and Creative Details

Before assembling the full quilt top, check every block for very thin areas. Back pockets removed from the original jeans work beautifully as patches over these spots. Select a matching thread and sew each pocket flat directly onto the block. This both reinforces the weak area and adds a fun, dimensional detail to the finished quilt.

Now for the clothing applique, which is what makes this quilt truly unique. For the jeans portion, remove as much of the back of a child’s pair of jeans as possible. Trim away the pockets and any extra bulk, and cut off the thick hems. Sew all openings shut, including the pockets and the zipper flap. Lay the jeans front on the quilt top, position them as flat as possible, and sew them in place. Leave the waistband unsewn for now.

For the shirt, iron it completely flat first. Sew the collar down so it lies flat, then remove the back panel including the sleeves. Tuck the shirt front into the jeans on the quilt top and sew down all sides. Once the shirt is fully secured, sew down the waistband. Finally, flip the quilt top over and carefully cut away the denim underneath the jeans front. This reduces bulk at that section without leaving the quilt top compromised. Leave the denim under the shirt in place, as removing it would make that area too thin relative to the rest.

Now is also a good time to add any decorative labels. Faux leather labels work especially well on denim. Options like “Made with Love” or “Denim Love” sewn onto a pocket or directly onto a block add a personal touch that someone will treasure.

Quilting with Parallel Line Stitching

A quilt needs three layers: a top, a batting, and a backing. Even though denim is already heavy, skipping the batting means the finished piece technically is not a quilt. The right batting choice here is a low-loft polyester. It is lightweight, which keeps the finished quilt from becoming unwieldy, and it gives the layers just enough body without adding warmth the denim already provides.

Baste the three layers together using large safety pins placed every few inches across the quilt. This holds everything firmly in place while you quilt.

For the quilting itself, parallel-line stitching in alternating directions is what adds life to this quilt. Rather than stitching all lines in the same direction across the whole surface, change the angle from section to section. On some blocks, run lines horizontally. On others, switch to diagonal. Also, vary the spacing between the lines, keeping some sets close together and others farther apart. A seam guide on the machine keeps the lines parallel within each section.

The 12 shades of denim thread used throughout the quilting are perfect here. Change the thread color as you move from section to section. The variety of shades against the denim fabric creates a subtle, rich effect. Light threads on dark denim and dark threads on lighter washes both catch the light differently, giving the quilting itself visual texture.

Binding the Quilt with Denim Strips

The binding for this quilt comes from the same source as everything else: old jeans. Leftover pant leg fabric from the cutting stage works perfectly, or use another pair of jeans entirely.

Here’s how to make the binding strips. Take a pant leg and lay it flat. Square off two edges using a ruler. Then cut a 5″ [12.7cm] wide strip the full length of the pant leg. From that 5″ [12.7cm] strip, cut two 2½″ [6.4cm] strips.

At both ends of each strip, mark a 45-degree angle. Sew all strips together on those diagonal lines, lining them up in an L-shape to form the joins. After sewing, trim each seam to a ¼″ allowance and press the seams open. For a quilt measuring 56″ x 70″ [142.2 x 177.8cm], approximately 10 to 11 strips are needed, depending on the average length of the pant legs (most average around 25″ [63.5cm]).

Fold the joined binding strip in half lengthwise with wrong sides together and press the full length. Sew the binding to the back of the quilt first. To reduce bulk at the corners, snip the corner points off the quilt before folding the binding over to the front. Use small quilting clips to hold the folded binding in place before stitching down from the top. Use a denim thread shade that contrasts nicely with the binding fabric for a polished, intentional finish.

Final Thoughts

This project uses every bit of the jeans. Nothing goes to waste. The blocks come from the legs. The patches come from the back pockets. The binding comes from the leftover strips. The clothing on the front comes from real garments with real memories attached. It’s a quilt that tells a story before anyone even picks it up.

The parallel line quilting, the circle applique over the flaws, the pockets, the labels — all of these details come together into something that looks finished and intentional, not improvised. Take the time on the cutting stage, keep extra blades on hand, and trust that the imperfections in the denim will become part of the charm.

Original series by Paul Leger on QUILTsocial.com. Photos by Paul Leger.