A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Gold Triangular Seamless Pattern No Background
Source GDJ
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Prismatic Floral Background No Black
Source GDJ
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin