Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
A seamless texture of worn out "cardboard".
Source V. Hartikainen
Black paper texture, based on two different images.
Source Atle Mo
Based from Design Kindle
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Prismatic Hexagonalist Pattern No Background
Source GDJ
A repeating background of beige paper with vintage look. Repeats to infinity, as usual.
Source V. Hartikainen
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
To get the tile this is based on, select the rectangle 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
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin