Explore guide
Plan a modular or mitred blanket
Measure a finished joined module and keep its orientation and assembly sequence explicit.
Related lessons and tools
Measure a finished joined module and keep its orientation and assembly sequence explicit.
Before you start
Gather the measurements, counts or timing sample needed below. Record their units and whether they describe a sample, the whole project or one purchased package. Use a finished sample when dimensions or material use depend on fabric structure.
How to do it
- Plan modular and mitred construction — Measure a joined module and map its orientation. Centered decrease lines and pickup direction determine how adjacent units meet.
- Join edges with mattress-style seaming — Join corresponding edge bars while keeping the seam allowance consistent. Tighten short sections gradually and preserve the fabric’s natural length.
- Record sample measurements and behavior — Record numbers alongside the exact material, tool, stitch pattern and finishing method. Add observable behavior rather than only a gauge total.
Try this example
A joined square module advances 10 cm in both directions. A 40 × 50 cm field needs four by five modules, or 20, before borders; verify one four-module intersection first.
Check your result
- Recheck the inputs against the actual sample or label, keep units consistent and round only the final count or purchase. Repeat a sample if a small measuring difference changes the decision.
- These arithmetic examples assume the measured structure stays comparable. Shaping, borders, dense textures and color changes require their own allowances or samples.
Sources
Motif layout planner
Turn a measured, joined motif repeat into rows, columns, and a make count for a rectangular project.
Before you use this tool
Join and finish several sample motifs before measuring the repeat pitch between matching points. Enter the motif field after subtracting borders.
Cover rounds up each axis; complete-only rounds down. Extra motifs are spares outside the layout.
Extra outer-edge allowance is added twice to each target dimension. Internal joins belong in the measured motif pitch.
Method and limits
Formula and assumptions
Required field = target width/height + twice the outer-edge allowance. Divide each axis by the finished joined motif pitch, swapping axes when rotated. Cover rounds up; complete-only rounds down. Multiply rows by columns, then add the rounded-up spare percentage. This model covers aligned rectangular layouts.
Worked example
Example: a 10 × 10 cm joined repeat covering 95 × 135 cm needs 10 columns × 14 rows = 140 motifs; 5% allowance means making 147.
Limits and rounding
Results are planning estimates from the values entered. Displayed decimals are rounded for craft use; whole materials and repeats round up where the method says so. Confirm gauge, material behavior, construction, and finished measurements before committing supplies.