Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
You know you love wood patterns, so here’s one more.
Source Richard Tabor
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
"Beige Stone", Tileable Texture.
Source V. Hartikainen
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
Tiny circle waves, almost like the ocean.
Source Sagive
This one is amazing, truly original. Go use it!
Source Viahorizon
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Different from the original in being a simple tile stored as a pattern definition, rather than numerous repeated objects. Hence easy and quick to give this pattern to objects of different shapes. To get the tile in Inkscape, select the rectangle and use shift+alt+i.
Source Firkin
Abstract Tiled Background Extended 6
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat