How To Measure

Standard Windows

  • Roller Blinds

    Now, you can’t mess this one up. It’s what we call ‘easy’ here at DotcomBlinds. But just in case you need some help, follow this quick guide.

    To measure a roller blind to fit inside the recess of your standard window, simply measure the full width and the height of the recess. Then input those measurements into the product page with your order selecting the ‘recess’ option. We’ll do the rest, leaving you the well-deserved excuse to put your feet up, you worked hard for it after all!

    Don’t be tempted to deduct any measurements, we do this for you. Make sure you use a metal tape measure; a cloth one can stretch and give you more millimetres per centimetre than a pound-shop ruler. Also, take your measurements in three places and give us the smallest (if there is a smallest). You will find that some recesses shift and settle over time.


    Outside the recess

    If you want your blind to hang outside the recess, measure the height and width but be sure to add some overlap to reduce light leakage. This overlap should be about 70mm at the top and bottom and 50mm each side, ensuring you suffer no dazzling strips of sunlight once your blind is happily installed. Please select the ‘exact’ size option when ordering. 

If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!
  • Insect Screens

    To measure a insect blind to fit inside the recess of your standard window, simply measure the full width and the height of the recess. Then input those measurements into the product page with your order selecting the ‘recess’ option. We’ll do the rest, leaving you the well-deserved excuse to put your feet up, you worked hard for it after all!

    Don’t be tempted to deduct any measurements, we do this for you. Make sure you use a metal tape measure; a cloth one can stretch and give you more millimetres per centimetre than a pound-shop ruler. Also, take your measurements in three places and give us the smallest (if there is a smallest). You will find that some recesses shift and settle over time.


    Outside the recess

    If you want your blind to hang outside the recess, measure the height and width but be sure to add some overlap to reduce light leakage. This overlap should be about 70mm at the top and bottom and 50mm each side, ensuring there are no dazzling strips of sunlight once your blind is happily installed. Please select the ‘exact’ size option when ordering. 

If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!
  • Vertical Blinds

    To measure a vertical blind to fit inside the recess of your standard window, simply measure the full width and the height of the recess. Then input those measurements into the product page with your order selecting the ‘recess’ option. We’ll do the rest, leaving you the well-deserved excuse to put your feet up, you worked hard for it after all!

    Don’t be tempted to deduct any measurements, we do this for you. Make sure you use a metal tape measure; a cloth one can stretch and give you more millimetres per centimetre than a pound-shop ruler. Also, take your measurements in three places and give us the smallest (if there is a smallest). You will find that some recesses shift and settle over time.


    Outside the recess

    If you want your blind to hang outside the recess, measure the height and width but be sure to add some overlap to reduce light leakage. This overlap should be about 70mm at the top and bottom and 50mm each side, ensuring there are no dazzling strips of sunlight once your blind is happily installed. Please select the ‘exact’ size option when ordering. 

If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!
  • Venetian Blinds

    To measure a venetian blind to fit inside the recess of your standard window, simply measure the full width and the height of the recess. Then input those measurements into the product page with your order selecting the ‘recess’ option. We’ll do the rest, leaving you the well-deserved excuse to put your feet up, you worked hard for it after all!

    Don’t be tempted to deduct any measurements, we do this for you. Make sure you use a metal tape measure; a cloth one can stretch and give you more millimetres per centimetre than a pound-shop ruler. Also, take your measurements in three places and give us the smallest (if there is a smallest). You will find that some recesses shift and settle over time.


    Outside the recess

    If you want your blind to hang outside the recess, measure the height and width but be sure to add some overlap to reduce light leakage. This overlap should be about 70mm at the top and bottom and 50mm each side, ensuring you suffer no dazzling strips of sunlight once your blind is happily installed. Please select the ‘exact’ size option when ordering. 

If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

How To Install

  • Fitting guide Roller.

  • Fitting guide Venetian.

  • Fitting guide Vertical.

  • Fitting guide Crank Roller.

  • Fitting guide Battery Roller.

  • Fitting guide Spring Roller.

Angled Bay

  • Roller Blinds

    Has it been keeping you up at night? Knowing you need to measure your bay window for a roller blind, but not knowing how to do it. All those angles, all that potential to get it so very wrong. What are you going to do? Read the simple instructions and tackle the project head on – it’s easier than you think! If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    Steps:

    • Step 1: First, you need to measure the blind’s protrusion. This is to find out how far the blind needs to be away from the window. A roller blind’s brackets protrude by approximately 55mm when top fixed or approximately 75mm when face fixed. Take a look at the window and check for any window handles or vents or anything else sticking out that would catch the blind on its way up or down. Measure how far these protrude and add it to the bracket protrusion. This figure is called P (see, that GCSE in algebra did come in handy!).
    • Step 2: Using a ruler, place two pieces of card edge-to-edge and measure the blind’s protrusion (P). Draw a line on both to indicate this.
    • Step 3: Here’s the clever part: slide the paper towards each other on the windowsill, heading into a corner. Keep the edges flat against the sill. When the two protrusion marks meet, stop.
    • Step 4: Grab your pencil again and mark on the windowsill the point where the lines meet. Do this for any other angled parts of the bay window.
    • Step 5: Measure across from one mark to the next, going from closest line to the next closest line, this will show you the width of the blind that you will need to order from us.
    • Step 6: Measure from the drop (listed on our website’s product specifications) to where you want the blind to end, which will most likely be your windowsill.
    • Step 7: Now, armed with these measurements, you’re ready to order your blind! Enter them into the product page and proceed to the checkout! Finally, go make yourself a celebratory cup of tea, you’ve just found the size of the blind you need for your angled bay window.
  • Vertical Blinds

    Has it been keeping you up at night? Knowing you need to measure your bay window for a vertical blind, but not knowing how to do it. All those angles, all that potential to get it so very wrong. What are you going to do? Read the simple instructions and tackle the project head on – it’s easier than you think! If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    Steps:

    • Step 1: First, you need to measure the blind’s protrusion. This is to find out how far the blind needs to be away from the window. A vertical blind’s headrail protrudes by approximately 75mm. Take a look at the window and check for any window handles or vents or anything else sticking out that would catch on the blind. Measure how far these protrude and add it to the headrail depth. This figure is called P (see, that GCSE in algebra did come in handy!).
    • Step 2: Using a ruler, place two pieces of card edge-to-edge and measure the blind’s protrusion (P). Draw a line on both to indicate this.
    • Step 3: Here’s the clever part: slide the paper towards each other on the windowsill, heading into a corner. Keep the edges flat against the sill. When the two protrusion marks meet, stop.
    • Step 4: Grab your pencil again and mark on the windowsill the point where the lines meet. Do this for any other angled parts of the bay window.
    • Step 5: Measure across from one mark to the next, going from closest line to the next closest line, this will show you the width of the blind that you will need to order from us.
    • Step 6: Measure from the drop (listed on our website’s product speci cations) to where you want the blind to end, which will most likely be your windowsill.
    • Step 7: Now, armed with these measurements, you’re ready to order your blind! Enter them into the product page and proceed to the checkout! Finally, go make yourself a celebratory cup of tea, you’ve just found the size of the blind you need for your angled bay window.
  • Venetian Blinds

    Has it been keeping you up at night? Knowing you need to measure your bay window for a venetian blind, but not knowing how to do it. All those angles, all that potential to get it so very wrong. What are you going to do? Read the simple instructions and tackle the project head on – it’s easier than you think! If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    Steps:

    • Step 1: First, you need to measure the blind’s protrusion. This is to find out how far the blind needs to be away from the window. A venetian blind’s headrail protrudes by approximately 30mm. Take a look at the window and check for any window handles or vents or anything else sticking out that would catch the blind on its way up or down. Measure how far these protrude and add it to the protrusion. This figure is called P (see, that GCSE algebra did come in handy!).
    • Step 2: Using a ruler, place two pieces of card edge-to-edge and measure the blind’s protrusion (P). Draw a line on both to indicate this.
    • Step 3: Here’s the clever part: slide the paper towards each other on the windowsill, heading into a corner. Keep the edges flat against the sill. When the two protrusion marks meet, stop.
    • Step 4: Grab your pencil again and mark on the windowsill the point where the lines meet. Do this for any other angled parts of the bay window.
    • Step 5: Measure across from one mark to the next, going from closest line to the next closest line, this will show you the width of the blind that you will need to order from us.
    • Step 6: Measure from the drop (listed on our website’s product specifications) to where you want the blind to end, which will most likely be your windowsill.
    • Step 7: Now, armed with these measurements, you’re ready to order your blind! Enter them into the product page and proceed to the checkout! Finally, go make yourself a celebratory cup of tea, you’ve just found the size of the blind you need for your angled bay window.

How To Install

  • Fitting guide Roller.

  • Fitting guide Venetian.

  • Fitting guide Vertical.

  • Fitting guide Crank Roller.

  • Fitting guide Battery Roller.

  • Fitting guide Spring Roller.

Box Bay

  • Roller Blinds

    Before we start, you will need to make one of the following deductions from your measurements BEFORE you enter them into our website and buy your blind. For box bay window blinds, DotcomBlinds WILL NOT make deductions once we receive the order.

    If you are planning to top fix the blind then you will need to deduct 55mm off of each blind’s measurements. If you want to face fix your blind then you will need to deduct 75mm from each blind’s final measurements.

    Please take your measurements in three places because bay windows are renowned for movement, and widths can vary. If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    First things first, choose which kind of blind fitter you are: Rookie, Professional or Maverick? Depending on which blind fitter you are defines how you measure and fit your blind.

    Rookie:

    • You don’t want to set the world on fire, you just want to fit the blind, and we hear you loud and clear! This is the most common and simplest ways of installing roller blinds in a box bay window, so listen up.
    • The blind is going to run across the front, almost corner to corner, with the side blinds butted up to the front blind. Simply measure the full width of the bay window and then measure the sides in the same way. Deduct the bracket allowance for both side blinds, which makes space for the blind at the front. Head back to the top of this guide to find out which measurement to deduct based on the way you plan to fit the blind.
    • That is all you need to do, so put your feet up and enjoy the view from your box bay window, that roller blind you just ordered will be arriving within three-to-five working days, and then you’ll be proudly staring at your handiwork.

    Professional:

    • Always pushing your DIY limits and pursuing perfection, you’ll enjoy fitting blinds in your box bay window the professional way.
    • Firstly, make sure this will work for your window. Measure from the corner of the bay to the start of the glass pane on both sides, and if either measurement is less than 70mm, then sorry buster, you’ll have to sit this dance out – you run the risk of not quite covering all of the glass.
    • The aim of this method is to leave a square void in the corners so that the blinds meet in the corners but don’t overlap. Measure all three sections directly into the corners, deduct the bracket allowance measurement from each blind (double for the bracket allowance measurement for the front blind). You will find the bracket measurements at the top of this guide.
    • Now, with that task in hand isn’t there a bookshelf you need to hang?

    Maverick:

    • You’re unconventional, you don’t do DIY by the book, you want your fitted blinds to reflect your unique nature. Or, you simply have very small side windows in your box bay window and you’ve chosen this option out of practicality. Welcome all.
    • With small side windows, you can often be left with a measurement (after the bracket allowance deductions) that is smaller than we’re able to make a roller blind. This option allows you to continue the side blinds into the corner with the front blind sitting between them. Measure the side blinds into the corner. Then measure the front from corner to corner, but deduct the bracket allowance (don’t forget to double the bracket allowance for the front blind before you deduct) from the width. You’ll find the bracket allowance at the top of this guide. Job done.
  • Venetian Blinds

    Before we start, you will need to make one of the following deductions from your measurements BEFORE you enter them into our website and buy your blind. For box bay window blinds, DotcomBlinds WILL NOT make deductions once we receive the order.

    If you are planning to top fix the blind then you will need to deduct 30mm off of each blind’s measurements. If you want to face fix your blind then you will need to deduct 30mm from each blind’s final measurements.

    Please take your measurements in three places because bay windows are renowned for movement, and widths can vary. If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    First things first, choose which kind of blind fitter you are: Rookie, Professional or Maverick? Depending on which blind fitter you are defines how you measure and fit your blind.

    Rookie:

    • You don’t want to set the world on re, you just want to fit the blind, and we hear you loud and clear! This is the most common and simplest ways of installing venetian blinds in a box bay window, so listen up.
    • The blind is going to run across the front, almost corner to corner, with the side blinds butted up to the front blind. Simply measure the full width of the bay window and then measure the sides in the same way. Deduct the bracket allowance for both side blinds, which makes space for the blind at the front. Head back to the top of this guide to find out which measurement to deduct based on the way you plan to fit the blind.
    • That is all you need to do, so put your feet up and enjoy the view from your box bay window, that roller blind you just ordered will be arriving within three-to-five working days, and then you’ll be proudly staring at your handiwork.

    Professional:

    • Always pushing your DIY limits and pursuing perfection, you’ll enjoy fitting blinds in your box bay window the professional way.
    • Firstly, make sure this will work for your window. Measure from the corner of the bay to the start of the glass pane on both sides, and if either measurement is less than 70mm, then sorry buster, you’ll have to sit this dance out – you run the risk of not quite covering all of the glass.
    • The aim of this method is to leave a square void in the corners, so that the blinds meet in the corners but don’t overlap. Measure all three sections directly into the corners, deduct the bracket allowance measurement from each blind (double for the bracket allowance measurement for the front blind). You will find the bracket measurements at the top of this guide.
    • Now, with that task in hand isn’t there a bookshelf you need to hang?

    Maverick:

    • You’re unconventional, you don’t do DIY by the book, you want your fitted blinds to reflect your unique nature. Or, you simply have very small side windows in your box bay window and you’ve chosen this option out of practicality. Welcome all.
    • With small side windows, you can often be left with a measurement (after the bracket allowance deductions) that is smaller than we’re able to make a blind. This option allows you to continue the side blinds into the corner with the front blind sitting between them. Measure the side blinds into the corner. Then measure the front from corner to corner, but deduct the bracket allowance (don’t forget to double the bracket allowance for the front blind before you deduct) from the width. You’ll find the bracket allowance at the top of this guide. Job done.
  • Vertical Blinds

    The box bay needn’t be the blind fitter’s three-sided nemesis. Here’s a quick and easy way to work out what size blinds you need for your box bay window. If any of this talk of measuring and fitting blinds still sounds like gobbledegook to you, please take a look at our Measuring & Fitting Service. Our professional tradespeople may be about to help!

    Steps:

    • Step 1:Cautiously approach your bay window, take a deep breath and proceed. This isn’t as difficult as it looks! Figure out where you are going to fit the fixing brackets, either top x or face x. Measure the widths of each window, go from corner to corner.
    • Step 2:Now you need to reduce the measurements by the bracket size. Our blinds have either a 75mm face x bracket or 25mm top x bracket, which you will need to specify when placing your order. With the following calculations both fittings will have a 25mm clearance between fabric and facing surface.
    • Step 3:Time to get mathematical! Once you’ve chosen your bracket, you need to reduce the measurement of the front window blind by the bracket size x2. Here’s the formula: Corner to corner window length – 150mm = the blind length you need to order
    • Step 4:You’ll also need to reduce the measurement of the side windows blind by the bracket size. Here’s the formula: Corner to corner side window length – 75mm = the blind length you need to order
    • Step 5:Order your blinds using your newly acquired measurements and then... relax!

How To Install

  • Fitting guide Roller.

  • Fitting guide Venetian.

  • Fitting guide Vertical.

  • Fitting guide Crank Roller.

  • Fitting guide Battery Roller.

  • Fitting guide Spring Roller.

Window for Curtain Tracks

  • We’ve made it super easy – just supply us with one measurement and we do all the deductions and supply you with the correct number of brackets.

    Measure the width of your ‘recess’ or ‘exact’ track size (outside the recess) and input it on the product page of the track you wish to buy.

    See, told you it was easy.

How To Install

  • Fitting Guide Curtain Light.

  • Fitting Guide Curtain Medium.

  • Fitting Guide Curtain Heavy.

  • Fitting Guide Curtain Cord.

Cubicle Track

  • We’ve do all the hard work so you don’t have to! Here’s what you need to do:

    • On our product page, select how you want the track to run, for example, you may want it to taken on an ‘L’ shape or cover a two-bed bay. This will provide you with a form to ll out of the required measurements.
    • Where possible, measure along a wall to provide an accurate measurement.
    • Do not try to deduct anything, or account for any extra measurements: we do this here at DotcomBlinds.
    • Enter in your measurements and proceed to the checkout!
    • If you are ordering your curtain, it is diligent to add 20% of the width to the width measurement. For example, if your curtain needs to be 1000mm wide, add 20% to make it 1200mm wide. This ensures there is enough fabric to cover entire track.

    See, nice and simple.

How To Install

  • Fitting guide Cubicle