Motif

Zigzag interlock pattern — free hatch (.pat), texture & 3D tiles

Zigzag interlock is a stone layout built from 1 tile per repeat (sizes 245 × 132.5 mm), repeating on the lattice a = (225, 0) mm, b = (112.5, 112.5) mm, a cell of 25313 mm². The seamless texture repeat is 225 × 225 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.

Zigzag interlock tile pattern: tiles drawn with their joints

Zigzag interlock in numbers

CategoryStone, paving and cobble
Tiles in one repeat1
Lattice vector a(225, 0) mm
Lattice vector b(112.5, 112.5) mm
Repeat cell area25313 mm²
Tile sizes245 × 132.5 mm
Seamless texture repeat225 × 225 mm
Default length225 (range 60–600)
Default width112.5 (range 30–300)
Default tooth depth / width0.0888888889 (range 0.02–0.25)
Default end depth / width0.0888888889 (range 0.02–0.25)

Free downloads for Zigzag interlock

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.

Zigzag interlock 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
413
Cut tiles
136
Whole tiles used
549
Area (net)
12 m²
Tile area bought
13.9 m²
Waste from cuts
15.8 %
Tiles to order
604
Tiles by size
SizeFull tilesCut tiles
245 × 132.5 mm413136

Open it in the editor or in SketchUp

Open Zigzag interlock in the editor

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

Questions about Zigzag interlock

How many Zigzag interlock 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 413 full tiles and 136 cut tiles (549 whole tiles counting each cut tile as one). The net area is 12 m² and the tiles bought cover 13.9 m², so cutting alone wastes 15.8 %. Enter your own room and tile size in the calculator on this page.

Is the Zigzag interlock hatch exact?

Not entirely. A PAT file can only hold straight dashed line families, and Zigzag interlock has edges that no such family reproduces exactly. The file draws 16 edges as a staircase of horizontal and vertical steps of 8 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 Zigzag interlock?

One repeat of the lattice covers 25313 mm² with 1 tile. The smallest rectangle that repeats seamlessly in both directions, which is what a texture image needs, is 225 × 225 mm at the default sizes.

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