How to Measure Your Room for Flooring
Here at Leader Online, we have years of experience fitting flooring, and over the years, we have been asked lots of how to measure questions. Here are some of the most frequently asked questions when it comes to measuring for flooring.
How do you measure a room for flooring?
It depends on the shape of the room you are fitting your flooring in, but here is a quick breakdown of how to measure certain rooms.
How to measure rectangular rooms
- Measure the length of the room.
- Measure the width of the room.
- Multiply the two numbers.
- Add an extra 5% for wastage.
How to measure L-shaped rooms
- Split the room into two rectangular sections.
- Measure the length of one section.
- Measure the width of the other section.
- Work out the area of both sections.
- Add the numbers together.
- Add an extra 5% for wastage.
Good news - you have the easiest job! All you need to do is measure the length of the room, then the width, and multiply them together!
For Example:
Your room is 4 metres long and 8 metres wide.
4 x 8 = 32
So the area of flooring you’ll need is 32 square metres!
This is a little trickier, but it should still be no problem to calculate. All you need to do is split the room into two rectangular sections. Find the area of each of the rectangles, then add them together to get the full area.
For Example:
One part of your room is 4 metres long and 8 metres wide, and the other part is 5 metres by 5 metres.
4 x 8 = 32
5 x 5 = 25
32 + 25 = 57
So the area of flooring you’ll need is 57 square metres!
If you’ve got a room with lots of different corners and areas, we sympathise. This is going to be a bit more of a faff, but it’s not impossible at all! You just need to break the room up into smaller rectangles and squares, work out all the individual areas and add them all together.
For Example:
The main part of your room is 3 metres long and 6 metres wide, it has an L shaped join that is 2 metres long and 3 metres wide, it also has an annex that is 1 metre long and 2 metres wide, and another extension that is 4 metres long and 3 metres wide.
3 x 6 = 18
2 x 3 = 6
1 x 2 = 2
4 x 3 = 12
18 + 6 + 2 + 12 = 38
So the area of flooring you’ll need is 38 square metres!
Once you have your measurements, it’s usually a good idea to add an extra 5% to the area. This means that you’ll have spare flooring just in case any wastage occurs while it’s being installed. All you need to do is multiply the total area by 1.05.
If you don’t fancy calculating it all yourself, you can pop your measurements into our flooring calculator that appears on each flooring product page - we’ll even tell you how many packs you’ll need to buy!
Frequently Asked Questions
How many packs of flooring do I need?
On each of our product pages, you will find a calculator that will help you calculate the number of packs required to fill your room. All that you need to know is the area of the room that you want to fill.
How many square feet is a box of laminate?
Typically a box of laminate flooring will cover around 2.5-3 meters squared; however, if you would like to calculate the number of boxes that you will need to fill your room, we have a calculator that figures out how many you need on each product page.
How much do contractors charge to install laminate flooring?
You can expect to pay around £10 per square metre for laminate flooring fitting. Some fitters charge for installation per day at around £100-200 per day, depending on the level of expertise, size of the project and skill required for the flooring type. You can also expect to pay more for extras such as disposal of old materials and underfloor heating.
How much does a box of laminate flooring cost?
Here at Leader Online, we have a range of laminate flooring available at a variety of prices. Laminate flooring options within the range start at around £15 a pack and can range up to around £55 a pack for more premium options.
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Description
Naturlay: 12mm Natural Cotton Underlay
Sustainable Luxury, Maximum Comfort, and a Healthier Home Environment.
Naturlay 12mm Natural Cotton Carpet Underlay
Naturlay is the ultimate choice for homeowners seeking a premium, eco-friendly foundation for their carpets. Crafted from 100% natural cotton fibres, this 12mm underlay offers exceptional luxury while remaining completely biodegradable at the end of its life.
Soft & Comfortable
The natural cotton felt construction contains no hard lumps or synthetic recycled plastics, providing a beautifully smooth and consistent feel beneath your carpet. Walking on your carpet has never felt so comfortable, with the 12mm thickness providing a deep, cushioned bounce.
Healthier Home Environment
Naturlay is fully breathable when used with a compatible carpet, allowing natural air and moisture movement through the floor. This helps reduce the build-up of damp and mould beneath the carpet, supporting a healthier indoor environment—ideal for allergy-sensitive households.
Perfect For:
- Living rooms & Bedrooms
- Stairs and landings
- Family homes with heavy foot traffic
- Eco-conscious renovation projects
- Allergy-sensitive households
Product Specifications
| Material | 100% Natural Cotton Fibres |
| Thickness | 12mm |
| Roll Size | 1m x 15m (15m²) |
| Traffic Rating | Heavy Domestic Use |
| Eco Rating | 100% Biodegradable & Renewable |
♻️ Eco-Friendly Choice:
Made entirely from renewable natural fibres, Naturlay is fully biodegradable at the end of its life, making it an environmentally responsible flooring choice with minimal impact.
Essential Installation Accessories
Delivery & Returns
Doorstep Delivery
Whether you're upgrading a single room or transforming your whole home, we offer quick, reliable delivery options designed to suit your schedule - including eco-friendly & premium in-home delivery services for larger items. We remove the hassle of traditional kerbside delivery, taking away all packaging if required, for a truly customised service.
Need more info on lead times or delivery terms? Reach out to our team - we’re always happy to help.
Hassle-Free 28 Day Returns
Changed your mind? No problem. You’ve got 14 days from delivery to let us know, and a further 14 days to return the item to us. Once we receive and inspect your return, we’ll process your refund within 3–5 working days.
Check our Returns & Refunds page for the full details. Still unsure? Get in touch with us today.
Suitability
✔ Living rooms & bedrooms
✔ Kitchens & bathrooms (when edges are sealed)
✔ Hallways, conservatories & basements
✔ Commercial interiors
✔ Stairs & high-traffic areas
Store Promise
Never Pay More
We won't be beaten on price. If you find the same product cheaper elsewhere online, we'll match it.
Premium In-Home Delivery
Unlike most competitors, our team brings your order safely inside your property - directly to room-of-choice
Hassle-Free Returns
Changed your mind? No problem. Return your order within 28 days for a full refund, simple & stress-free.
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