Before ordering new flooring, you need accurate measurements. Getting this step right ensures you buy enough material, avoid unnecessary waste, and stay within budget. Whether you're fitting carpet, vinyl, laminate, LVT, or wood flooring, a simple measuring method can give you the correct room size and help your flooring supplier or installer provide a precise quote. Most rooms are straightforward to measure, and even irregular shapes can be handled with a few extra steps.

1. Measure the Length and Width

Start by measuring the longest and widest parts of the room using a tape measure.

• Measure the maximum length of the room

• Measure the maximum width

• Always measure to the nearest centimetre or inch

Even if your room isn’t perfectly square, measuring the longest points ensures enough flooring is ordered.

Example:
Room length = 4.8m
Room width = 3.6m
Room size = 4.8 × 3.6 = 17.28m²

2. Allow for Cutting and Wastage

Every flooring type requires a little extra to allow for cuts, pattern matching, or shaping around corners.

Typical allowance:

• Carpet: +10%

• Vinyl/Lino: +5%

• Laminate/LVT/Wood: +10%

This ensures you don’t run short, especially when installers need offcuts for edges or tricky areas.

3. Measuring L-Shaped or Irregular Rooms

For rooms that aren’t simple rectangles, divide the space into individual sections.

How to do it:

1. Break the room into squares or rectangles

2. Measure each section separately

3. Multiply each length × width

4. Add all section totals together

This method works for:

• L-shaped rooms

• Rooms with alcoves

• Open-plan spaces

• Bay windows

Example:
Main area = 4m × 3m = 12m²
Alcove = 1m × 1.5m = 1.5m²
Total = 13.5m²
Add waste allowance afterwards.

4. Measuring for Stair Carpets or Runners

Stairs need more detail because of shape and angles.

Measure:

• Width of each step

• Tread depth (the flat part)

• Riser height (the vertical part)

• Multiply the total number of steps

• Add extra for winders (turning stairs)

Professional installers often confirm measurements, but good estimates help with budgeting.

5. Consider Additional Areas

Don’t forget small adjoining sections that may need flooring:

• Cupboards

• Wardrobes

• Landings

• Steps into extensions

• Small connecting spaces

These are easy to overlook but can change the total size significantly.

Is Measuring a Room Easy to Do?

Yes — with a tape measure and a simple method, most homeowners can measure a room accurately. For complex layouts or when ordering expensive flooring, a professional measure is always worth considering. But even doing it yourself first helps with planning, budgeting, and choosing the right flooring for your space.