We have detected that you have cookies switched off in your browser.
This site uses cookies to provide a more efficient service to our visitors.
You will not be able to place orders, print orders or use the search function on this site if you do not have our strictly necessary and functional cookies switched on. You will however be able to browse our range of products and use some other services.
Select to find out details of what cookies are and how we use cookies.
To give you the best possible experience, this site uses cookies. Continuing to use diy.com means you agree to our use of cookies.
If you'd like to learn more about the cookies we use please click 'Find out more' on the right.
Cookies are small text files stored on your computer. They are used by most websites to help personalise your web experience. Some features on

Enter the dimensions of your wall in m2 then select the number of doors and windows in the room. Select the number of coats you require and click calculate to find out how many litres of paint you will need.
What are the dimensions of the room?
Enter Wall dimensions:
© B&Q 2013 - Terms & Conditions | View cookies policy