ROUGHCUT / The Keystone SeriesSEWING PATTERNS / MADE BY YOU

KEYSTONEDENIMS.

The Keystone Denims

The fabric is the start.
The rest is yours.

A modular selvedge jean system designed to teach how a pair of jeans is actually constructed — while giving you complete freedom to design your own version.

THE KEYSTONE SERIES

The Keystone Denims

Choose your pattern format.

Check fabric & sizing ↓
CHOOSE YOUR FORMAT

DIGITAL & PRINTED OPTIONS
THE KEYSTONE SERIES

Choose your next build.

Explore the Keystone bundle ↗
01 / THE DETAILS

The things you’ll
make your own.

A closer look at the techniques and details inside this pattern.

01Flat-felled seam construction
02Button fly & zip fly construction
03Front & back pocket systems
04Structured waistband construction
05Buckle & hardware installation
06Double-knee reinforcement
The Keystone Series
STUDY / MAKE / REPEAT

Good things take
a little making.

02 / EXPLORE THE BUILD

Small steps.
Real progress.

Select a panel to explore. Follow the tutorial for the full construction sequence.

Flat-felled seam construction
EXPLORE / 01

Flat-felled seam construction

Explore flat-felled seam construction as part of the The Keystone Denims build. Follow the pattern and its construction resources for the exact sequence and method.

03 / OPEN BEFORE YOU BUY

Your next build.
Inside the folder.

See the file formats and reference material before you choose your pattern. The project starts with knowing what you’re opening.

Print at actual size. Check the test square before cutting fabric.

ROUGHCUT / The Keystone DenimsYour pattern files.OPEN YOUR DOWNLOAD FOLDER +
A0
Copy-shop pattern

Full-size sheets for large-format printing.

A4
Print at home

Tiled pages for an A4 printer.

US
US Letter

Tiled pages for US Letter paper.

MAP
Layout & materials

Panel labels, notches, cutting layout and materials information.

SIZE
Choosing which sizes to print

Layered sizing: select the size layer you need in a compatible PDF reader.

SEAM
Seam allowance

¼″ already included — cut on the line

FILM
Construction on film

Companion tutorials linked below. Watch, pause and replay as you work.

Folder illustration shows file categories, not a page-for-page preview. Check the supplied files for size layers and exact contents.

04 / MAKE IT WITH ME

See how it
comes together.

Pause, replay and take the build at your own pace.

05 / PLAN BEFORE YOU CUT

Choose the cloth.
Make it yours.

Fabric changes the character. Check the pattern’s material guidance before buying.

A starting point for fabric

Selvedge denim — 13–16 oz recommendedHeavyweight non-selvedge denimJapanese or European shuttle-loom denim

Exact fabric quantities depend on size, fabric width and your chosen version. Use the materials guide supplied with the pattern.

How much fabric?

Choose your project and the width of your cloth.

Allowances follow the supplied guides. Check your chosen modular pieces and usable fabric width before cutting.

06 / THE FIT DESK

Measure something
you already love.

Lay a similar garment flat. Compare like-for-like measurements with the pattern chart, keeping the intended fit in mind.

Your comparison checklist
Garment areaWhat to compare
Chest / waistUse the same flat or circumference method as the chart
LengthMeasure between the same start and end points
MovementAllow for layering and the intended silhouette
The Keystone Denims — published measurement chartPublished measurement chart for The Keystone Denims

Open the image at full size to read the original values and units.

Denims · Baggy — measurement grid (cm)

Scroll sideways to compare all sizes.

Pattern measurements in centimetres
Measurement2426283032343638404244
Waist (circumference)7175.980.885.790.695.5100.4105.3110.2115.1120
Hip — chart value85.99196.1101.1106.2111.3116.4121.5126.5131.6136.7
Thigh — chart value59.762.665.568.571.474.477.380.283.286.189.1
Knee — chart value56.158.560.963.365.768.170.472.875.277.680
Hem — chart value58.860.762.664.466.368.270.17273.875.777.6
Inseam73.77576.377.678.980.181.482.78485.386.6
Front rise29.129.63030.53131.431.932.432.833.333.8
Back rise38.238.839.439.940.541.141.742.242.843.443.9

From the existing Keystone sizing data. Match the measurement method to the pattern diagram before comparing.

Denims · Straight — measurement grid (cm)

Scroll sideways to compare all sizes.

Pattern measurements in centimetres
Measurement2426283032343638404244
Waist (circumference)68.373.278.18387.992.897.8102.7107.7112.5117.5
Hip — chart value83.288.493.798.9104.1109.4114.6119.9125.1130.3135.6
Thigh — chart value55.758.761.664.567.570.473.476.379.382.285.1
Knee — chart value45.547.950.352.65557.359.762.164.466.869.1
Hem — chart value43.845.747.650.452.254.15657.959.861.663.5
Inseam75.276.577.881.582.884.185.486.788.189.490.7
Front rise24.424.925.426.326.827.227.728.228.629.129.6
Back rise32.132.733.333.934.43535.636.136.737.337.8

From the existing Keystone sizing data. Match the measurement method to the pattern diagram before comparing.

Full measurement tables (cm)

Denims · Baggy

Measurement2426283032343638404244
Waist (circumference)7175.980.885.790.695.5100.4105.3110.2115.1120
Hip — chart value85.99196.1101.1106.2111.3116.4121.5126.5131.6136.7
Thigh — chart value59.762.665.568.571.474.477.380.283.286.189.1
Knee — chart value56.158.560.963.365.768.170.472.875.277.680
Hem — chart value58.860.762.664.466.368.270.17273.875.777.6
Inseam73.77576.377.678.980.181.482.78485.386.6
Front rise29.129.63030.53131.431.932.432.833.333.8
Back rise38.238.839.439.940.541.141.742.242.843.443.9

Denims · Straight

Measurement2426283032343638404244
Waist (circumference)68.373.278.18387.992.897.8102.7107.7112.5117.5
Hip — chart value83.288.493.798.9104.1109.4114.6119.9125.1130.3135.6
Thigh — chart value55.758.761.664.567.570.473.476.379.382.285.1
Knee — chart value45.547.950.352.65557.359.762.164.466.869.1
Hem — chart value43.845.747.650.452.254.15657.959.861.663.5
Inseam75.276.577.881.582.884.185.486.788.189.490.7
Front rise24.424.925.426.326.827.227.728.228.629.129.6
Back rise32.132.733.333.934.43535.636.136.737.337.8

Find your starting size

Compare a similar garment you like the fit of. These are garment measurements, not body measurements.

07 / FROM THE STUDIO

Real cloth.
Real possibilities.

THE PATTERN / YOUR WAY

Your next build
starts here.

Choose a digital download or have the pattern printed and shipped. Fabric and hardware are not included.

CHOOSE YOUR FORMAT

Digital files are delivered after purchase. Printed orders require delivery. Shipping and applicable taxes are shown at checkout.

BEFORE YOU BEGIN

A few things
to know.

Am I buying a finished garment?

No. This is a sewing pattern. You choose your own fabric and hardware and make the garment.

What do I receive?

Open the download folder above for the listed formats and resources. Digital is a file download; printed is a physical paper pattern. Check the selected format before purchase.

How do I choose a size?

Use the published measurement chart and compare a similar garment you already own. The guided questionnaire compares your garment with the chart. Check the full measurements and intended fit before cutting.

Can I start with just one pattern?

Yes. Each pattern has its own page. Explore the collection links if you would like to build related garments over time.

Where can I share my finished build?

Share with #ROUGHCUTMYOG or visit Community Builds on the Rough Cut website.

The Keystone DenimsChoose your format ↗