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Room Measuring

Mr Carpets Direct’s - How To: Measuring Guide

Mr Carpets Direct strongly recommends that you have any room/area measured Professionally, as this can save you time and money.”

It is advisable not to use measurements supplied by; House Plans, Estate Agent Measurements, or Architecture Drawings. As these measurements may not be as accurate, or allow enough tolerance for fitting your flooring, and can result in you ordering too little or too much flooring for your room/area to be fitted.

The information within these pages are for a basic idea of what quantity of flooring you may need for a typical square/rectangular shaped room/area. Again Mr Carpets Direct strongly recommends getting rooms measured by a Professional, as a square room within the Flooring Industry is not totally square, as Doorways, Bays, Recesses, and Floor Level Cupboards can altar the shape of a room, and can even protrude out of the room. Any room that has curved walls, and/or contains a stair case, then Mr Carpets Direct again recommends that you have these areas measured by a Professional.

Please use the below information/guide as a basic reference, as a Professional will ensure that there is enough flooring ordered to allow for fitting, pattern matching, and also reduce the need for joining/seaming when able too.

Measuring Image
Measuring Rooms
Measuring HSL
For further information concerning estimating your room sizes, please select one of the above options.

How to Measure Rooms/Areas

This is a basic guide to give you an understanding of what quantity of flooring you may need for your chosen room/area. This guide is designed for a typically square/rectangular room/area. Please bear in mind, any room greater than 5 metres in width, will require joining/seaming to complete the overall desired effect, and as such Mr Carpets Direct recommends that you have these areas checked by a Professional, along with other areas that contain stair cases and/or curved walls.

To begin with, it is a good idea to have at hand before starting;

Pad of 

Paper Pad/Paper   Pen or 

Pencil Pen/Pencil   Pen or 

Pencil Tape Measure
(at least 5m long)
  Calculator Calculator
Room Plan Diagram
(fig. 1)

We also have a Planning Sheet available to you, that you simply printout and fill in the details: planning-sheets.pdf

In a nutshell you simply need to measure the widest and longest points of your room/area (including: into any; Doorway, Recesses, Bays, Floor Level Cupboards, etc.).

It is good to start with a drawing of your room (you can make it as detailed as you like, but remember we are only interested with widest and longest points as stated above), a typical drawing may look like (See fig 1).

Once you have both measurements, please ensure to note them down on to your drawing/plan. Within the flooring industry we typically add a little extra to each measurement to allow a tolerance for fitting purposes (usually around 10cm (approximately 4 inches) to both the length and width measurements).


Measurements + Tolerance Order Quantity
Width*: 4.60 m 4.70 m 5 m
Length: 3.20 m 3.30 m 3.30 m
      16.50 m2
Please be aware Carpets/Vinyl flooring comes in specific widths (Carpet: 4m & 5m, Vinyl: 2m/3m/4m), so your width measurement will need to be rounded up to next available width, anything greater than the largest width available will require joining/seaming to complete your flooring, however there are bespoke carpet manufacturers like Bronte and Brockway that can offer greater width choices, with their bespoke options.

Again Mr Carpets Direct recommends that you have any figures checked by a Professional, you will find that most Carpet Shops/Retailers now offer a measuring service, mainly free of charge.

Measuring Hall, Stairs, & Landing

Mr Carpets Direct strongly advises you to have stairs measured by a Professional, as measuring your stairs can be more complex than measuring any other area. This in turn can lead you to ordering too little materials to complete the work. It is important to get the sizes right before ordering your materials as with any Textiles Industry it is impossible to guarantee colour match from different batches, so ordering the correct amount at the start will ensure that your flooring is from the same batch.

To begin with it is good practice to have the following at hand before we start;

Pad of 

Paper Pad/Paper   Pen or 

Pencil Pen/Pencil   Pen or 

Pencil Tape Measure
(at least 5m long)
  Calculator Calculator

We also have a Planning Sheet available to you, that you simply printout and fill in the details: planning-sheets.pdf

Mr Carpets Direct recommends that you start with a drawing/plan, this can be as simple or as detailed as you like (see fig 1), please ensure that you label each area of you drawing/plain (example: Landing, Hall, etc.). On your plan it is also good to indicate any doors, and what type of surface is on the other side of any internal door (i.e.. carpet, tile, vinyl, etc..) as this will help you with getting the right door-bars if you wish/need to change them.

It is also a good idea to mark on any plan where your stairs start and end as shown by the lines in our plans below (you can simply indicate stairs with an arrow, usually pointing in direction of the stairs running down):


Plan Hall Plan
(fig: 1)

Although we are only interested in the longest and widest measurements (a and b), it is also recommended to take down further measurements such as c and d remembering to also note them down on your plan, as this will ensure that your fitter has enough dimensions when fitting your chosen carpet/flooring.

Ensure any measurement on the landing where the stairs meet, includes the height of the riser to the first step off the landing as well, as highlighted in purple in example shown in fig 1.

There is no wrong or right place to start with, however it might be an idea to start from the top and then work your way down.


The simplest method is usually the best; it is pointless to over complicate things unless you need to. If your landing is in the shape of rectangular or an "L" then measure it as a complete square, as you may be able to use any waste for the stairs.

When measuring please ensure that you that always remember to measure in to any; Doorway, Recesses, Alcoves.

Top Step 

(fig 2)

Apart from the widest and longest points we are also interested in one more measurement, which is where the steps/stairs join the landing. This measurement should start from opposite the top step and will include any doorway, alcove, recess, etc. Now measure and continue over the top step and down the riser until you reach the step below (see fig 2).

If your Landing is not rectangular or an L shape then we recommend that you have the Hall, Stairs and Landing professionally measured.


Please note: unfortunately it is not as easy as running a tape measure the complete length of the staircase, as this will result in a MAJOR shortage, as this measurement will not take into account the tread and rise of each step, which are typically greater than the complete length of your staircase. unfortunately to get the exact size, you will need measure every step as outlined below.

The next thing is to determine what shape of staircase that you're going to cover. Does your stairs for instance cover a half-landing, and/or do your stairs curve (in the trade curved steps are known as winders), or does your staircase simply run straight up and straight down?

Unless your staircase is straight, it might be a good idea to draw these as well.


Straight Stairs

Straight Stairs:


(fig 3)

With a typical straight staircase you would measure the width of the step, and the length of the step (include tread and the riser to the next step below) see fig 3. Once you have these measurement you can disregard all but the widest width, and the longest length. Now count the number of steps (excluding the top as this is normally your landing). So you can now jot down "Stairs (width x length) x steps" for your staircase, please bear in mind that this is not an equation, as it is dimensions by quantity (example: I need 6 steps with 0.80m W x 0.90m L).

Quarter/Half Landing


These are designed to either change the direction of your stairs (typically 90o/180o), or they are there to avoid solid structures (like internal supporting walls).

Treat the Half-Landing/Quarter-Landing the same as any Landing, and simply follow the straight/winding stairs in between the floor and both the landings.

Winding Stairs

Winding Stairs:

Winders come in many different shapes (typically triangular or kite) and sizes, their function is to change the direction of the stairs normally 90o to 180o, even 360o on some occasions (spiral staircase). However the method of measuring them is the same.

It is advisable to measure each winder individually as each may have completely different dimensions than the other, this is another good reason to sketch a plan of your stairs so that you can number the different winders in accordance with your dimensions, so your fitter will know which carpet goes to which winder when they come to fit your flooring.

To measure your winder is pretty straight forward, again its measure the widest and longest points, however as these steps are no longer rectangular it might be harder to identify where these are on your winders.

Triangular Shape Winder Kite Shape Winder
Triangle Shaped Winder Kite Shaped Winder
A: is generally the longest point of a triangular step. A: is typically the longest point on a kite shaped step.
B: measure the front of the tread (nose), also check the back of the tread, and keep the widest width. B: is usually the widest width on a kite shaped step.

Remember to note down each measurement for each winder, and ensure you can reference you step dimension back to the plan of your steps. (Example Winder 1 = 1m W, 0.90m L).

Bull Nose Stairs

Bull Nose:

Some staircases may include a bull nose step or two, usually at the bottom of the staircase as highlighted in red, these are nothing to worry about and the measurements that are needed are the same as before; Width and Length, however instead of measuring the width from the tread, we take it this time from the riser, and ensure to also include curved area as well, the length is as before, measuring both the tread and the riser to the floor below.

If your bull nose doubles completely back on its self, or each of your stairs are bull noses, then Mr Carpets Direct recommends you seek professional advice.



The hall is reasonably straight forward again, as you would measure these as you would with any other room/area, again we are only really interested with the maximum dimensions at this stage, but again it is wise to take further measurements as per the landing, as this will aid you or your flooring professional with planning and fitting.

Remember to include any Doorways, Recesses, and Alcoves in any measurement that you take, and again it is wise to indicate on your plan any doors, and what flooring is on the other side of any internal doors (i.e. tiles, carpets, vinyl, etc.), as this will help if you wish/need to change the door bars.

Good planning can save you excess wastage and in turn will save you money. Again there is no need to over complicate things, if your hallway is rectangular in shape with the stairs included, then measure it as a rectangular, as any excess can/may be utilised in the stairs.

Net Figures

Ok now that we have finished measuring, it is now good to ensure that all your figurers are represented on you sketchs/plans.

Please note: the figures on your plan, are net figures only, as they do not include any tolerance for fitting or pattern match (if needed). Now you should have at least a plan (+doors) as displayed in fig 4.

Landing Plan Hall Plan
(fig: 4)

Now we recommend that you have these figures checked by a Professional, as a Professional will be able to include the right amount of tolerance, and should be able to advise on the overall carpet dimension that will need to be ordered.

A good flooring professional will be able to plan what is needed with one piece of carpet, which will reduce wastage, and save money.

If you would like Mr Carpets Direct to assist with the quantity you need, then simply print off our planning-sheets.pdf fill in with sketches, and dimensions. Once complete simply scan your plan(s), and email them back to us and will gladly advise on size of flooring required.

Why use a Professional?

Mr Carpets Direct recommends using a Flooring Professional for Measuring and Fitting of your chosen flooring, as a Professional will ensure that you have enough materials ordered to complete the work, without the need of ordering more, or having too much excess.

A Flooring Professional, will also be able to advise on the best place for joins/seams to go (if required). They can also advise on the right materials for your room/area (i.e. using a Heavy Domestic carpet or better for high traffic areas. e.g. stairs).

Using a Flooring Professional, will save you time, and may also save you money. As they will have the right tools and equipment for the job at hand.

Where to find a Flooring Professional.

The simplest answer is usually your nearest Carpet Shop/Retailer, where most now offer a measuring service (normally free of charge).

However there are also a number of online bodies where you can also find suitable local trades people, such as, and to name a couple.

Within the Flooring Industry there is also a recognised professional body (National Institute of Carpet and Floorlayers) their aim is to promote excellence within the field of floor fitting, understanding and awareness of the British Standards Code of Practice for the installation of textile floor coverings, and to provide assurance of quality of workmanship to the public.

Useful Information.

There may be times where excess wastage is unavoidable, Mr Carpets Direct strongly recommends that you retain any large off cuts after your flooring has been fitted, as these can be useful for cupboards, runners, mats, and minor repairs (if/when needed).

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