Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.
Source V. Hartikainen