Motif

Fish scale pattern — free hatch (.pat), texture & 3D tiles

Fish scale is a ceramic layout built from 1 tile per repeat (sizes 100 × 100 mm), repeating on the lattice a = (50, 50) mm, b = (-50, 50) mm, a cell of 5000 mm². The seamless texture repeat is 100 × 100 mm. Download it as a CAD hatch, a seamless texture or SVG and DXF lines, count the tiles for your room, or build it as real 3D tiles in SketchUp. All free.

Fish scale tile pattern: tiles drawn with their joints

Fish scale in numbers

CategoryCeramic, mosaic and geometric tiles
Tiles in one repeat1
Lattice vector a(50, 50) mm
Lattice vector b(-50, 50) mm
Repeat cell area5000 mm²
Tile sizes100 × 100 mm
Seamless texture repeat100 × 100 mm
Default width100 (range 10–1000)
Default row step / width0.5 (range 0.05–0.5)

Free downloads for Fish scale

The PAT files are approximate: this pattern has edges that a PAT line family cannot draw exactly, so they are drawn as stepped lines. SVG and DXF are exact.

Hatch units are millimetres at the default tile size. For other sizes use the hatch page or the editor, which exports every format at the size you set.

Fish scale tile calculator

Enter the room, grout and tile size. The count comes from the same engine that lays the 3D tiles, so the cut tiles are real cuts against your room edges (a 4 × 3 m room is shown first). More patterns: tile calculator.

Full tiles
2331
Cut tiles
140
Whole tiles used
2471
Area (net)
12 m²
Tile area bought
12.36 m²
Waste from cuts
3 %
Tiles to order
2719
Tiles by size
SizeFull tilesCut tiles
100 × 100 mm2331140

Open it in the editor or in SketchUp

Open Fish scale in the editor

Use it in SketchUp (10 free uses a day) motif.rbz

Questions about Fish scale

How many Fish scale tiles do I need for a 4 × 3 m room?

With the default tile size and a 3 mm joint, a 4 × 3 m floor needs 2331 full tiles and 140 cut tiles (2471 whole tiles counting each cut tile as one). The net area is 12 m² and the tiles bought cover 12.36 m², so cutting alone wastes 3 %. Enter your own room and tile size in the calculator on this page.

Is the Fish scale hatch exact?

Not entirely. A PAT file can only hold straight dashed line families, and Fish scale has edges that no such family reproduces exactly. The file draws 72 edges as a staircase of horizontal and vertical steps of 3.5 mm, within a fraction of a step of the true edge. The SVG and DXF downloads are exact.

How do I use the .pat file in AutoCAD?

Copy the .pat file into a folder that is in AutoCAD's Support File Search Path (Options > Files), keep the file name (the pattern name inside the file matches it), then pick the pattern in the HATCH command. If Windows blocks the download, right-click the file, open Properties and tick Unblock.

How do I use the .pat file in Revit?

In Revit open Manage > Additional Settings > Fill Patterns, click New, choose Custom and browse to the .pat file. Use the model variant when the pattern must keep its real size on the building.

What is the repeat size of Fish scale?

One repeat of the lattice covers 5000 mm² with 1 tile. The smallest rectangle that repeats seamlessly in both directions, which is what a texture image needs, is 100 × 100 mm at the default sizes.

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