Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
As the original image 's page size is too large for its image size, I remixed it.
Source Yamachem
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Classic vertical lines, in all its subtlety.
Source Cody L
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
You know you love wood patterns, so here’s one more.
Source Richard Tabor
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Alternative colour scheme to the original.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Prismatic Abstract Background Design
Source GDJ
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
Formed by distorting a JPG from PublicDomainPictures
Source Firkin