How to measure the square meterage of a room
Want to begin your house renovation today? Let's get started today by learning how to measure the square meter of a room. This skill can be used to help you measure the tiles for your bathroom, wallpaper for your sitting room or a splashback for your kitchen. Measuring the square meterage of a room is an essential step in determining how much of something you'll need to cover the floor or walls. Having the skill of measuring the square meterage of a room is a versatile skill that will help you through any house renovation task. To successfully measure the square meterage of a room, follow these steps:
Use a tape measure to measure the length and width of the room in meters (make sure to measure at the widest points).
Top tip: if your room has more than four corners in your room, break the room up into different sections. Then add the two totals at the end for the full room room square meterage.
Once you have the length and width measurements, multiply them together to get the total square meterage. For example, if the length of the room is 2 meters and the width is 3 meters, the total square meterage is 6 square meters (2 x 3 = 6).
If there are any areas of the room that you don't want to account for, subtract the square meterage of those areas from the total square meterage. For example, if there's a built-in cabinet that takes up 1 square meter, subtract 1 square meter from the total square meterage.
It's always a good idea to purchase extra to account for waste during installation. The amount of extra needed for tiles will depend on the tile size and layout, but a good rule of thumb is to add 10% to 15% to the total square meterage.
By following these steps, you'll be able to accurately measure the square meterage of a any room and determine how much of a material you may need.
Sep 20, 2026
Bathrooms4U is proud to be nominated in two categories at the 2026 NTFAI Awards — Best Tile Shop Over 300m² and Best Marketing. A fantastic recognition of the hard work, creativity and dedication of the entire B4U team.
Sep 12, 2026
Bathrooms4U at the Ballincollig Business Showcase in Cork, connecting with the local community and showcasing our bathroom design, retail and installation services
Sep 4, 2026
Take a look behind the scenes at Bathrooms4U as another delivery arrives. From bathroom ware and tiles to showers, furniture and more, discover how we keep our warehouses stocked and our teams ready for every project.
Aug 26, 2026
Explore the new Bathrooms4U bathroom catalogue, created in collaboration with Sanbra Group and packed with quality, design-led bathroom solutions for residential and commercial projects.
Aug 18, 2026
Planning a commercial bathroom project? Discover how Bathrooms4U works with commercial clients on bathroom fit-outs, from initial planning and product selection through to installation and completion.
Aug 11, 2026
Discover Bathrooms4U Commercial Retail and how Darren Hanlon works with commercial clients nationwide to source bathroom ware, tiles and products for projects of all sizes, including our recent work with The Derrynane Coast Hotel.