Every seamless textile pattern tiles in one of three basic geometries: straight, half-drop, or half-brick. The choice affects how the design reads on fabric, whether repeats look obvious or hidden, and how the motif composition needs to be structured in the first place. This guide covers each geometry visually, when to use which, and the math of repeat sizing.
Straight Repeat (Square)
The simplest repeat geometry. Each tile sits directly next to and directly above/below its neighbors, forming a clean grid. Rows align. Columns align. No offset.
Visual structure:
┌──┬──┬──┐ │ A│ A│ A│ ├──┼──┼──┤ │ A│ A│ A│ ├──┼──┼──┤ │ A│ A│ A│ └──┴──┴──┘
When straight repeats work:
- Strongly geometric patterns (checkerboards, grids, plaid)
- Logo repetition and brand work
- Designs where the grid itself is the aesthetic
- Technical fabrics (uniforms, sports apparel with grid motifs)
When straight repeats fail:
- Floral patterns (obvious gridded appearance)
- Any motif with directional flow
- Natural textures (the grid breaks organic feel)
- Patterns where repeat visibility must be minimized
Production note: straight repeats are the easiest to verify, set up, and correct. Use them when the design genuinely works with them — not as a default because they're simpler.
Half-Drop Repeat
Each column of tiles shifts down by half a tile height relative to the column to its left. The result has a diagonal rhythm that hides vertical seams.
Visual structure:
┌──┬──┬──┐ │ A│ │ A│ ├──┤ A├──┤ │ A│ │ A│ ├──┤ A├──┤ │ A│ │ A│ └──┴──┴──┘
(Alternating columns are offset by half a tile height)
When half-drop works:
- Floral patterns (disguises repeat very effectively)
- Organic and natural motifs
- Abstract textures
- Most apparel prints
Production note: half-drop is the textile industry default for a reason. When in doubt, design for half-drop. Roughly 70% of printed textile patterns in production use half-drop geometry.
Half-Brick Repeat
Each row shifts horizontally by half a tile width, like standard bricklaying pattern. Hides horizontal seams.
Visual structure:
┌──┬──┬──┐ │ A│ A│ A│ ├──┴──┴──┤ │A│ A│ A│A│ ├──┬──┬──┤ │ A│ A│ A│ └──┴──┴──┘
When half-brick works:
- Stone, brick, and masonry-inspired motifs
- Horizontally-banded designs
- Patterns where horizontal rhythm should dominate
- Wallpaper-style geometric repeats
Production note: half-brick is less common than half-drop in apparel but dominant in home textile (wallpaper, upholstery). The choice between half-drop and half-brick often comes down to whether the motif reads more naturally vertically (use half-drop) or horizontally (use half-brick).
Quick Reference
| Geometry | Offset | Best For | Industry Use |
|---|---|---|---|
| Straight | None | Geometric, logo, grid aesthetics | ~15% |
| Half-drop | Column shifts down ½ tile | Florals, organic, natural | ~70% |
| Half-brick | Row shifts right ½ tile | Stone, bands, horizontal | ~10% |
| Other | 1/3-drop, 1/4-brick, etc. | Specialty applications | ~5% |
How Repeat Choice Affects the Design
This is often missed: the repeat geometry isn't just how the finished tile arranges — it changes what the composition needs to be.
- Designing for straight repeat: motifs should balance on a grid. Corners should meet cleanly. Avoid focal points too close to edges.
- Designing for half-drop: motifs should flow diagonally. Vertical alignment of similar motifs will create obvious stripes. Stagger intentionally.
- Designing for half-brick: motifs should flow horizontally. Vertical emphasis will look strange. Design for banding.
Decide the repeat geometry first. Design accordingly. Converting late is rework, not a shortcut.
Repeat Size Math
Repeat size matters independently of geometry. Common sizes:
- 20cm × 20cm — small scale, detailed work, obvious at garment scale
- 40cm × 40cm — balanced default for apparel and home
- 64cm × 64cm — rotary screen standard (matches screen circumference)
- 91cm × 91cm — larger rotary standard
- 1m+ — statement prints, large panel work
Match repeat size to fabric roll width for max yield. A 50cm repeat on 150cm fabric tiles three across cleanly. A 64cm repeat on 150cm fabric wastes 22cm of selvedge every meter.
Geometry-Specific Verification
Each geometry needs different verification:
- Straight: 3×3 grid check. Verify horizontal and vertical seam continuity.
- Half-drop: half-drop grid check AND straight grid check. The two configurations need separate verification.
- Half-brick: half-brick grid check AND straight grid check. Same — both configurations.
For the verification workflow in detail: how to check if your pattern tiles.
Related Reading
For making seamless repeats: 60-second seamless repeat workflow. For the industry's seamless pattern fundamentals: complete seamless textile pattern guide. For rotary screen specifications including repeat size: rotary screen design checklist.
