The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
A bit strange this one, but nice at the same time.
Source Diogo Silva
Prismatic Abstract Background Design No Black
Source GDJ
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed