Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Seamless Light Background Texture.
Source V. Hartikainen
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Tile-able Dark Brown Wood Background. Feel free to use it as a background image in your designs or somewhere on the web. By the way, the color seems to be close to Coffee Brown.
Source V. Hartikainen
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin