Table of Contents<\/h2>\n\n- Before You Begin \u2013 Essential UK Considerations<\/a><\/li>\n
- Measuring for Perfect Fit \/ INTU Blinds (The Most Common & Recommended Method for UK Bi-Folds)<\/a><\/li>\n
- Measuring for Other Blind Types<\/a><\/li>\n
- Double-Checking and Common Pitfalls (UK Specific Warnings)<\/a><\/li>\n
- Ordering Your Blinds<\/a><\/li>\n<\/ul>\n
Before You Begin \u2013 Essential UK Considerations<\/h2>\n
<\/p>\n
![\"Before](\"https:\/\/www.dotcomblinds.com\/pub\/wp\/wp-content\/uploads\/2025\/06\/Before-You-Begin.jpeg\")
<\/p>\n
<\/p>\n
1.1 Choosing the Right Blind Type for UK Bi-Fold Doors<\/strong><\/h3>\nDifferent blinds suit bi-fold doors in different ways. Here’s a breakdown of the most appropriate options for UK homes:<\/p>\n
Perfect Fit Blinds<\/strong><\/a> (Most recommended for the UK)<\/em><\/h4>\nThese clip directly onto the window or door frame without drilling\u2014perfect for preserving warranties on newly installed bi-folds.<\/p>\n
Why they work well in the UK:<\/strong><\/p>\n\n- Fit neatly onto uPVC or aluminium frames (the most common in UK homes)<\/li>\n
- Move with the door panel\u2014no dangling fabric<\/li>\n
- No screws or drilling required<\/li>\n
- Excellent light control with minimal gaps<\/li>\n
- Compliant with UK child safety standards<\/li>\n<\/ul>\n
INTU Blinds<\/strong><\/h4>\nVery similar to Perfect Fit, but use a slightly different clip-in mechanism. Popular with UK homeowners and available from most made-to-measure blind retailers.<\/p>\n
Key benefits:<\/strong><\/p>\n\n- Tool-free installation<\/li>\n
- Sleek and secure<\/li>\n
- Work well on inward or outward folding doors<\/li>\n<\/ul>\n
Pleated Blinds<\/strong><\/h4>\nOften used within Perfect Fit and INTU frames.<\/p>\n
Popular for:<\/strong><\/p>\n\n- Slim, stacked profile when open<\/li>\n
- Thermal performance (great for conservatories or south-facing rooms)<\/li>\n
- Soft, diffuse light filtering<\/li>\n<\/ul>\n
Aluminium Venetian Blinds<\/strong><\/h4>\nAnother popular option within clip-in systems, especially for contemporary homes.<\/p>\n
UK-friendly benefits:<\/strong><\/p>\n\n- Excellent privacy and light control<\/li>\n
- Minimalist appearance, great for modern interiors<\/li>\n<\/ul>\n
Integral Blinds<\/strong> (Factory-fitted only)<\/em><\/h4>\nFitted within<\/em> the double glazing unit itself, these aren\u2019t measured or installed by the homeowner.
Note for UK buyers:<\/strong> Only available when ordering new bi-fold doors, not suitable for retrofit.<\/p>\nCassette or Slimline Roller Blinds<\/strong><\/h4>\nCan work on individual panels if installed precisely within a recess.<\/p>\n
Limitations:<\/strong><\/p>\n\n- Often bulky<\/li>\n
- Can interfere with door operation<\/li>\n
- Less tidy appearance than clip-in systems<\/li>\n<\/ul>\n
Vertical Blinds \/ Standard Roller \/ Outside Mounted Venetians<\/strong><\/h4>\nThese are best suited to covering the entire bi-fold opening<\/em>, like a curtain would.<\/p>\nDrawbacks:<\/strong><\/p>\n\n- Don\u2019t move with the door<\/li>\n
- Can obstruct door stacking<\/li>\n
- May appear bulky or cluttered<\/li>\n<\/ul>\n
\u2705 Key Takeaway:<\/strong> For UK bi-fold doors, Perfect Fit and INTU blinds<\/strong> remain the most popular and practical panel-by-panel solutions.<\/p>\n1.2 Essential Tools You’ll Need<\/strong><\/h3>\nGather the following before you begin:<\/p>\n
\n- Metal tape measure<\/strong> \u2013 The gold standard for UK DIYers (accurate and won\u2019t stretch)<\/li>\n
- Pencil<\/strong> \u2013 For jotting down measurements<\/li>\n
- Paper or notepad<\/strong> \u2013 Keep records panel by panel<\/li>\n
- Calculator<\/strong> (optional)<\/em> \u2013 Helpful if converting or checking totals<\/li>\n
- Step ladder<\/strong> \u2013 Useful for tall doors, common in UK garden rooms and extensions<\/li>\n
- Helper<\/strong> \u2013 Optional, but recommended for large installations<\/li>\n
- Glazing bead depth tool<\/strong> \u2013 Or use a thin card\/rigid ruler to measure bead depth. Most UK suppliers offer bead measuring tools for free or a nominal fee.<\/li>\n<\/ul>\n
1.3 Understanding Your UK Bi-Fold Door Frame<\/strong><\/h3>\nWhat Is the Glazing Bead?<\/strong><\/h4>\nThe glazing bead is the rubber or plastic trim that holds the glass in place within the frame. For clip-in systems like Perfect Fit or INTU, this bead is the crucial measuring reference.<\/p>\n
Common UK Frame Materials:<\/strong><\/h4>\n\n- uPVC<\/strong> \u2013 Widely used, with uniform bead profiles<\/li>\n
- Aluminium<\/strong> \u2013 Popular in modern builds and extensions<\/li>\n
- Timber<\/strong> \u2013 Less common but still found in period or bespoke properties<\/li>\n<\/ul>\n
Inward or Outward Folding?<\/strong><\/h4>\nKnowing how your doors open helps determine if your blinds will project too far and cause interference. Outward-folding doors tend to offer more internal clearance.<\/p>\n
Watch for Obstructions:<\/strong><\/h4>\nMeasure the projection<\/strong> of:<\/p>\n\n- Door handles<\/li>\n
- Keyholes<\/li>\n
- Espagnolette bolts<\/li>\n
- Locking mechanisms<\/li>\n<\/ul>\n
\u26a0\ufe0f Tip:<\/em> If the handles stick out significantly, your blind supplier may offer extended or offset brackets.<\/p>\nMeasuring for Perfect Fit \/ INTU Blinds (The Most Common & Recommended Method for UK Bi-Folds)<\/h2>\n
<\/p>\n
![\"Measuring](\"https:\/\/www.dotcomblinds.com\/pub\/wp\/wp-content\/uploads\/2025\/06\/Measuring-for-Perfect-Fit-and-INTU-Blinds.jpeg\")
<\/p>\n
<\/p>\n
2.1 General Principles (UK Context)<\/strong><\/h3>\n\n- Measure only the visible glass area<\/strong> inside the glazing bead<\/li>\n
- Do not<\/strong> make deductions \u2013 the blind manufacturer will do this<\/li>\n
- Always provide measurements in millimetres (mm)<\/strong><\/li>\n
- Measure each panel separately<\/strong>, as sizes can vary<\/li>\n<\/ul>\n
2.2 Step-by-Step Measuring Guide<\/strong><\/h3>\nStep 1: Identify the Glazing Bead<\/strong><\/h4>\nLook for the rubber or plastic edge around the glass inside the frame. This is where your measurement starts and ends.<\/p>\n
Step 2: Measure Width<\/strong><\/h4>\n\n- Measure from inside edge to inside edge<\/strong> of the glazing bead<\/li>\n
- Take three measurements: top, middle, and bottom<\/strong><\/li>\n
- Record the smallest<\/strong> measurement (to ensure a snug fit)<\/li>\n<\/ul>\n
\ud83d\udcdd Provide the width in mm, with no deductions.<\/em><\/p>\nStep 3: Measure Drop (Height)<\/strong><\/h4>\n\n- Again, measure from inside glazing bead edge to edge<\/strong><\/li>\n
- Measure left, middle, and right<\/strong><\/li>\n
- Use the smallest<\/strong> value<\/li>\n<\/ul>\n
\ud83d\udcdd Again, record in mm, exactly as measured.<\/em><\/p>\nStep 4: Measure Glazing Bead Depth<\/strong><\/h4>\nThis ensures the blind\u2019s clips will fit properly and won\u2019t interfere with door movement.<\/p>\n
How to measure:<\/p>\n
\n- From the surface of the glass to the edge of the bead<\/li>\n
- Use a glazing bead depth tool or thin card\/ruler<\/li>\n<\/ul>\n
\ud83d\udca1 Common UK depths:<\/strong><\/p>\n\n- 18mm, 20mm, 24mm, 28mm<\/li>\n
- Most Perfect Fit systems accept 18mm\u201330mm<\/li>\n
- Some suppliers offer spacers\/brackets for shallower (12mm) or deeper (up to 34mm) beads<\/li>\n<\/ul>\n
\u26a0\ufe0f If your bead depth falls outside this range, contact the supplier before ordering.<\/em><\/p>\nStep 5: Assess Frame Profile<\/strong><\/h4>\nSlimline or unusually shaped beads may not accept clip-in blinds.
\ud83d\udca1 Tip: Take a photo and ask the blind supplier to confirm compatibility.<\/em><\/p>\n2.3 Dealing with Obstructions: Handles, Hinges & Locks<\/strong><\/h3>\nMeasure how far handles or key cylinders protrude from the frame:<\/p>\n
\n- Use a ruler to get depth in mm<\/li>\n
- If they extend too far, it could block blind movement<\/li>\n<\/ul>\n
Solutions:<\/strong><\/p>\n\n- Use extended brackets<\/strong> (common in the UK)<\/li>\n
- Select shallower blind styles<\/strong> (e.g. pleated vs. Venetian)<\/li>\n
- Ask supplier if cut-out options<\/strong> are available<\/li>\n<\/ul>\n
2.4 Measure Each Panel Individually<\/strong><\/h3>\nEven if all panels look the same, measure each one separately. Variations of just a few millimetres are common in UK installations\u2014and enough to affect the blind fit.<\/p>\n
Measuring for Other Blind Types<\/h2>\n
<\/p>\n
![\"Measuring](\"https:\/\/www.dotcomblinds.com\/pub\/wp\/wp-content\/uploads\/2025\/06\/Measuring-for-Other-Blind-Types.jpeg\")
<\/p>\n
<\/p>\n
While Perfect Fit and INTU blinds are generally the most practical and popular options for UK bi-fold doors, there are scenarios where alternative blind fitting methods may be considered. This section explains when and how to measure for these less common options and outlines their suitability for UK homes.<\/p>\n
3.1 Measuring for Recess Fit Blinds<\/strong><\/h3>\nTypically not recommended for folding bi-fold panels but may suit a single traffic door or recess-mounted applications.<\/em><\/p>\nWhen It Might Be Considered<\/strong><\/h4>\n\n- If your bi-folds include a single hinged \u201ctraffic door\u201d (a regular door within the bi-fold set that opens independently)<\/li>\n
- When Perfect Fit or INTU blinds aren\u2019t compatible with your door profile or bead depth<\/li>\n
- If you prefer a conventional blind fitting that sits inside the frame recess<\/li>\n<\/ul>\n
How to Measure (UK Method):<\/strong><\/h4>\n\n- Measure the full recess width<\/strong>: wall to wall, inside the frame<\/li>\n
- Measure the full recess drop\/height<\/strong>: from the top of the recess to the windowsill or base<\/li>\n
- Take measurements in three places<\/strong> (top, middle, bottom for width; left, middle, right for height)<\/li>\n
- Use the smallest<\/strong> of each to ensure the blind fits properly<\/li>\n
- Note<\/strong>: You provide exact measurements\u2014the blind supplier will deduct<\/strong> around 10\u201315mm from the width<\/strong> to allow for smooth operation and fitting<\/li>\n<\/ol>\n
Downsides for UK Bi-Folds:<\/strong><\/h4>\n\n- Blinds do not move with the doors<\/strong>, making them awkward to use on folding panels<\/li>\n
- Creates gaps<\/strong> during door operation or when doors are partially open<\/li>\n
- May interfere with stacking<\/strong> of the doors when fully open<\/li>\n
- Not child-safe unless specific safety devices are fitted<\/li>\n
- Can look bulky and interrupt the sleek, minimalist appearance typical of UK bi-fold installations<\/li>\n<\/ul>\n
\u2705 Best reserved for single traffic doors or recess-mounted roller blinds used to dress the entire aperture.<\/em><\/p>\n3.2 Measuring for Face Fit Blinds (Outside the Recess)<\/strong><\/h3>\nUsed when the goal is to cover the entire bi-fold door set like a curtain, rather than integrate with individual panels.<\/em><\/p>\nWhen It Might Be Considered<\/strong><\/h4>\n\n- If your bi-folds open outwards<\/strong> and there’s no suitable recess internally<\/li>\n
- When you’re aiming to cover the entire opening<\/strong> for light blocking or privacy<\/li>\n
- In rental properties or homes where drilling into frames is not permitted<\/li>\n<\/ul>\n
How to Measure (UK Method):<\/strong><\/h4>\n\n- Decide your desired overlap<\/strong>: typically 50\u2013100mm beyond the opening<\/strong> on all sides (left, right, and above)<\/li>\n
- Width<\/strong>: Measure the width of the opening and add your chosen overlap (e.g., if opening is 2400mm and you want 100mm overlap each side, total width = 2600mm)<\/li>\n
- Drop\/Height<\/strong>: Measure from where you plan to install the blind (e.g. above the frame) down to where you want the blind to finish (e.g. floor level or just below the doors)<\/li>\n
- Check for any obstructions<\/strong> above or to the sides of the opening that may interfere with the blind housing or operation<\/li>\n<\/ol>\n
Considerations:<\/strong><\/h4>\n\n- Allows the use of standard roller, vertical or Venetian blinds<\/strong><\/li>\n
- Blinds will not move with the doors<\/strong>, so they need to be fully raised or drawn aside before opening the doors<\/li>\n
- Light bleed<\/strong> is likely around the edges, unless carefully designed<\/li>\n
- Stack-back space<\/strong> (especially with vertical blinds) must be planned for, as it will reduce light and may obstruct access<\/li>\n
- Bulky appearance<\/strong> compared to Perfect Fit\/INTU blinds<\/li>\n
- Can undermine the sleek visual appeal that bi-fold doors are designed to provide<\/li>\n<\/ul>\n
\u2705 May be suitable where appearance is secondary to full-coverage functionality, such as in utility rooms or for temporary use.<\/em><\/p>\nDouble-Checking and Common Pitfalls (UK Specific Warnings)<\/h2>\n
<\/p>\n
![\"Double-Checking](\"https:\/\/www.dotcomblinds.com\/pub\/wp\/wp-content\/uploads\/2025\/06\/Double-Checking-and-Common-Pitfalls.jpeg\")
<\/p>\n
<\/p>\n
Measuring for bi-fold door blinds is all about precision. Even a few millimetres can make the difference between a perfect fit and a frustrating installation. This section covers the most common mistakes UK homeowners make\u2014and how to avoid them\u2014so you can measure with confidence and order once, not twice.<\/p>\n
4.1 The Importance of Measuring Thrice<\/strong><\/h3>\nThe old saying \u201cmeasure twice, cut once\u201d is wise, but for made-to-measure blinds, it\u2019s even better to \u201cmeasure thrice, order once.\u201d<\/strong>
Why? Bi-fold doors involve multiple panels, varied dimensions, and potentially tricky sightlines. Measuring three times helps catch small inconsistencies and boosts your confidence that you’ve got it right.<\/p>\n4.2 Don\u2019t Make Deductions Yourself<\/strong><\/h3>\nThis is one of the biggest pitfalls for UK homeowners.
Before You Begin \u2013 Essential UK Considerations<\/h2>\n
<\/p>\n
<\/p>\n
<\/p>\n
1.1 Choosing the Right Blind Type for UK Bi-Fold Doors<\/strong><\/h3>\nDifferent blinds suit bi-fold doors in different ways. Here’s a breakdown of the most appropriate options for UK homes:<\/p>\n
Perfect Fit Blinds<\/strong><\/a> (Most recommended for the UK)<\/em><\/h4>\nThese clip directly onto the window or door frame without drilling\u2014perfect for preserving warranties on newly installed bi-folds.<\/p>\n
Why they work well in the UK:<\/strong><\/p>\n\n- Fit neatly onto uPVC or aluminium frames (the most common in UK homes)<\/li>\n
- Move with the door panel\u2014no dangling fabric<\/li>\n
- No screws or drilling required<\/li>\n
- Excellent light control with minimal gaps<\/li>\n
- Compliant with UK child safety standards<\/li>\n<\/ul>\n
INTU Blinds<\/strong><\/h4>\nVery similar to Perfect Fit, but use a slightly different clip-in mechanism. Popular with UK homeowners and available from most made-to-measure blind retailers.<\/p>\n
Key benefits:<\/strong><\/p>\n\n- Tool-free installation<\/li>\n
- Sleek and secure<\/li>\n
- Work well on inward or outward folding doors<\/li>\n<\/ul>\n
Pleated Blinds<\/strong><\/h4>\nOften used within Perfect Fit and INTU frames.<\/p>\n
Popular for:<\/strong><\/p>\n\n- Slim, stacked profile when open<\/li>\n
- Thermal performance (great for conservatories or south-facing rooms)<\/li>\n
- Soft, diffuse light filtering<\/li>\n<\/ul>\n
Aluminium Venetian Blinds<\/strong><\/h4>\nAnother popular option within clip-in systems, especially for contemporary homes.<\/p>\n
UK-friendly benefits:<\/strong><\/p>\n\n- Excellent privacy and light control<\/li>\n
- Minimalist appearance, great for modern interiors<\/li>\n<\/ul>\n
Integral Blinds<\/strong> (Factory-fitted only)<\/em><\/h4>\nFitted within<\/em> the double glazing unit itself, these aren\u2019t measured or installed by the homeowner.
Note for UK buyers:<\/strong> Only available when ordering new bi-fold doors, not suitable for retrofit.<\/p>\nCassette or Slimline Roller Blinds<\/strong><\/h4>\nCan work on individual panels if installed precisely within a recess.<\/p>\n
Limitations:<\/strong><\/p>\n\n- Often bulky<\/li>\n
- Can interfere with door operation<\/li>\n
- Less tidy appearance than clip-in systems<\/li>\n<\/ul>\n
Vertical Blinds \/ Standard Roller \/ Outside Mounted Venetians<\/strong><\/h4>\nThese are best suited to covering the entire bi-fold opening<\/em>, like a curtain would.<\/p>\nDrawbacks:<\/strong><\/p>\n\n- Don\u2019t move with the door<\/li>\n
- Can obstruct door stacking<\/li>\n
- May appear bulky or cluttered<\/li>\n<\/ul>\n
\u2705 Key Takeaway:<\/strong> For UK bi-fold doors, Perfect Fit and INTU blinds<\/strong> remain the most popular and practical panel-by-panel solutions.<\/p>\n1.2 Essential Tools You’ll Need<\/strong><\/h3>\nGather the following before you begin:<\/p>\n
\n- Metal tape measure<\/strong> \u2013 The gold standard for UK DIYers (accurate and won\u2019t stretch)<\/li>\n
- Pencil<\/strong> \u2013 For jotting down measurements<\/li>\n
- Paper or notepad<\/strong> \u2013 Keep records panel by panel<\/li>\n
- Calculator<\/strong> (optional)<\/em> \u2013 Helpful if converting or checking totals<\/li>\n
- Step ladder<\/strong> \u2013 Useful for tall doors, common in UK garden rooms and extensions<\/li>\n
- Helper<\/strong> \u2013 Optional, but recommended for large installations<\/li>\n
- Glazing bead depth tool<\/strong> \u2013 Or use a thin card\/rigid ruler to measure bead depth. Most UK suppliers offer bead measuring tools for free or a nominal fee.<\/li>\n<\/ul>\n
1.3 Understanding Your UK Bi-Fold Door Frame<\/strong><\/h3>\nWhat Is the Glazing Bead?<\/strong><\/h4>\nThe glazing bead is the rubber or plastic trim that holds the glass in place within the frame. For clip-in systems like Perfect Fit or INTU, this bead is the crucial measuring reference.<\/p>\n
Common UK Frame Materials:<\/strong><\/h4>\n\n- uPVC<\/strong> \u2013 Widely used, with uniform bead profiles<\/li>\n
- Aluminium<\/strong> \u2013 Popular in modern builds and extensions<\/li>\n
- Timber<\/strong> \u2013 Less common but still found in period or bespoke properties<\/li>\n<\/ul>\n
Inward or Outward Folding?<\/strong><\/h4>\nKnowing how your doors open helps determine if your blinds will project too far and cause interference. Outward-folding doors tend to offer more internal clearance.<\/p>\n
Watch for Obstructions:<\/strong><\/h4>\nMeasure the projection<\/strong> of:<\/p>\n\n- Door handles<\/li>\n
- Keyholes<\/li>\n
- Espagnolette bolts<\/li>\n
- Locking mechanisms<\/li>\n<\/ul>\n
\u26a0\ufe0f Tip:<\/em> If the handles stick out significantly, your blind supplier may offer extended or offset brackets.<\/p>\nMeasuring for Perfect Fit \/ INTU Blinds (The Most Common & Recommended Method for UK Bi-Folds)<\/h2>\n
<\/p>\n
<\/p>\n
<\/p>\n
2.1 General Principles (UK Context)<\/strong><\/h3>\n\n- Measure only the visible glass area<\/strong> inside the glazing bead<\/li>\n
- Do not<\/strong> make deductions \u2013 the blind manufacturer will do this<\/li>\n
- Always provide measurements in millimetres (mm)<\/strong><\/li>\n
- Measure each panel separately<\/strong>, as sizes can vary<\/li>\n<\/ul>\n
2.2 Step-by-Step Measuring Guide<\/strong><\/h3>\nStep 1: Identify the Glazing Bead<\/strong><\/h4>\nLook for the rubber or plastic edge around the glass inside the frame. This is where your measurement starts and ends.<\/p>\n
Step 2: Measure Width<\/strong><\/h4>\n\n- Measure from inside edge to inside edge<\/strong> of the glazing bead<\/li>\n
- Take three measurements: top, middle, and bottom<\/strong><\/li>\n
- Record the smallest<\/strong> measurement (to ensure a snug fit)<\/li>\n<\/ul>\n
\ud83d\udcdd Provide the width in mm, with no deductions.<\/em><\/p>\nStep 3: Measure Drop (Height)<\/strong><\/h4>\n\n- Again, measure from inside glazing bead edge to edge<\/strong><\/li>\n
- Measure left, middle, and right<\/strong><\/li>\n
- Use the smallest<\/strong> value<\/li>\n<\/ul>\n
\ud83d\udcdd Again, record in mm, exactly as measured.<\/em><\/p>\nStep 4: Measure Glazing Bead Depth<\/strong><\/h4>\nThis ensures the blind\u2019s clips will fit properly and won\u2019t interfere with door movement.<\/p>\n
How to measure:<\/p>\n
\n- From the surface of the glass to the edge of the bead<\/li>\n
- Use a glazing bead depth tool or thin card\/ruler<\/li>\n<\/ul>\n
\ud83d\udca1 Common UK depths:<\/strong><\/p>\n\n- 18mm, 20mm, 24mm, 28mm<\/li>\n
- Most Perfect Fit systems accept 18mm\u201330mm<\/li>\n
- Some suppliers offer spacers\/brackets for shallower (12mm) or deeper (up to 34mm) beads<\/li>\n<\/ul>\n
\u26a0\ufe0f If your bead depth falls outside this range, contact the supplier before ordering.<\/em><\/p>\nStep 5: Assess Frame Profile<\/strong><\/h4>\nSlimline or unusually shaped beads may not accept clip-in blinds.
\ud83d\udca1 Tip: Take a photo and ask the blind supplier to confirm compatibility.<\/em><\/p>\n2.3 Dealing with Obstructions: Handles, Hinges & Locks<\/strong><\/h3>\nMeasure how far handles or key cylinders protrude from the frame:<\/p>\n
\n- Use a ruler to get depth in mm<\/li>\n
- If they extend too far, it could block blind movement<\/li>\n<\/ul>\n
Solutions:<\/strong><\/p>\n\n- Use extended brackets<\/strong> (common in the UK)<\/li>\n
- Select shallower blind styles<\/strong> (e.g. pleated vs. Venetian)<\/li>\n
- Ask supplier if cut-out options<\/strong> are available<\/li>\n<\/ul>\n
2.4 Measure Each Panel Individually<\/strong><\/h3>\nEven if all panels look the same, measure each one separately. Variations of just a few millimetres are common in UK installations\u2014and enough to affect the blind fit.<\/p>\n
Measuring for Other Blind Types<\/h2>\n
<\/p>\n
<\/p>\n
<\/p>\n
While Perfect Fit and INTU blinds are generally the most practical and popular options for UK bi-fold doors, there are scenarios where alternative blind fitting methods may be considered. This section explains when and how to measure for these less common options and outlines their suitability for UK homes.<\/p>\n
3.1 Measuring for Recess Fit Blinds<\/strong><\/h3>\nTypically not recommended for folding bi-fold panels but may suit a single traffic door or recess-mounted applications.<\/em><\/p>\nWhen It Might Be Considered<\/strong><\/h4>\n\n- If your bi-folds include a single hinged \u201ctraffic door\u201d (a regular door within the bi-fold set that opens independently)<\/li>\n
- When Perfect Fit or INTU blinds aren\u2019t compatible with your door profile or bead depth<\/li>\n
- If you prefer a conventional blind fitting that sits inside the frame recess<\/li>\n<\/ul>\n
How to Measure (UK Method):<\/strong><\/h4>\n\n- Measure the full recess width<\/strong>: wall to wall, inside the frame<\/li>\n
- Measure the full recess drop\/height<\/strong>: from the top of the recess to the windowsill or base<\/li>\n
- Take measurements in three places<\/strong> (top, middle, bottom for width; left, middle, right for height)<\/li>\n
- Use the smallest<\/strong> of each to ensure the blind fits properly<\/li>\n
- Note<\/strong>: You provide exact measurements\u2014the blind supplier will deduct<\/strong> around 10\u201315mm from the width<\/strong> to allow for smooth operation and fitting<\/li>\n<\/ol>\n
Downsides for UK Bi-Folds:<\/strong><\/h4>\n\n- Blinds do not move with the doors<\/strong>, making them awkward to use on folding panels<\/li>\n
- Creates gaps<\/strong> during door operation or when doors are partially open<\/li>\n
- May interfere with stacking<\/strong> of the doors when fully open<\/li>\n
- Not child-safe unless specific safety devices are fitted<\/li>\n
- Can look bulky and interrupt the sleek, minimalist appearance typical of UK bi-fold installations<\/li>\n<\/ul>\n
\u2705 Best reserved for single traffic doors or recess-mounted roller blinds used to dress the entire aperture.<\/em><\/p>\n3.2 Measuring for Face Fit Blinds (Outside the Recess)<\/strong><\/h3>\nUsed when the goal is to cover the entire bi-fold door set like a curtain, rather than integrate with individual panels.<\/em><\/p>\nWhen It Might Be Considered<\/strong><\/h4>\n\n- If your bi-folds open outwards<\/strong> and there’s no suitable recess internally<\/li>\n
- When you’re aiming to cover the entire opening<\/strong> for light blocking or privacy<\/li>\n
- In rental properties or homes where drilling into frames is not permitted<\/li>\n<\/ul>\n
How to Measure (UK Method):<\/strong><\/h4>\n\n- Decide your desired overlap<\/strong>: typically 50\u2013100mm beyond the opening<\/strong> on all sides (left, right, and above)<\/li>\n
- Width<\/strong>: Measure the width of the opening and add your chosen overlap (e.g., if opening is 2400mm and you want 100mm overlap each side, total width = 2600mm)<\/li>\n
- Drop\/Height<\/strong>: Measure from where you plan to install the blind (e.g. above the frame) down to where you want the blind to finish (e.g. floor level or just below the doors)<\/li>\n
- Check for any obstructions<\/strong> above or to the sides of the opening that may interfere with the blind housing or operation<\/li>\n<\/ol>\n
Considerations:<\/strong><\/h4>\n\n- Allows the use of standard roller, vertical or Venetian blinds<\/strong><\/li>\n
- Blinds will not move with the doors<\/strong>, so they need to be fully raised or drawn aside before opening the doors<\/li>\n
- Light bleed<\/strong> is likely around the edges, unless carefully designed<\/li>\n
- Stack-back space<\/strong> (especially with vertical blinds) must be planned for, as it will reduce light and may obstruct access<\/li>\n
- Bulky appearance<\/strong> compared to Perfect Fit\/INTU blinds<\/li>\n
- Can undermine the sleek visual appeal that bi-fold doors are designed to provide<\/li>\n<\/ul>\n
\u2705 May be suitable where appearance is secondary to full-coverage functionality, such as in utility rooms or for temporary use.<\/em><\/p>\nDouble-Checking and Common Pitfalls (UK Specific Warnings)<\/h2>\n
<\/p>\n
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Measuring for bi-fold door blinds is all about precision. Even a few millimetres can make the difference between a perfect fit and a frustrating installation. This section covers the most common mistakes UK homeowners make\u2014and how to avoid them\u2014so you can measure with confidence and order once, not twice.<\/p>\n
4.1 The Importance of Measuring Thrice<\/strong><\/h3>\nThe old saying \u201cmeasure twice, cut once\u201d is wise, but for made-to-measure blinds, it\u2019s even better to \u201cmeasure thrice, order once.\u201d<\/strong>
Why? Bi-fold doors involve multiple panels, varied dimensions, and potentially tricky sightlines. Measuring three times helps catch small inconsistencies and boosts your confidence that you’ve got it right.<\/p>\n4.2 Don\u2019t Make Deductions Yourself<\/strong><\/h3>\nThis is one of the biggest pitfalls for UK homeowners.
These clip directly onto the window or door frame without drilling\u2014perfect for preserving warranties on newly installed bi-folds.<\/p>\n
Why they work well in the UK:<\/strong><\/p>\n Very similar to Perfect Fit, but use a slightly different clip-in mechanism. Popular with UK homeowners and available from most made-to-measure blind retailers.<\/p>\n Key benefits:<\/strong><\/p>\n Often used within Perfect Fit and INTU frames.<\/p>\n Popular for:<\/strong><\/p>\n Another popular option within clip-in systems, especially for contemporary homes.<\/p>\n UK-friendly benefits:<\/strong><\/p>\n Fitted within<\/em> the double glazing unit itself, these aren\u2019t measured or installed by the homeowner. Can work on individual panels if installed precisely within a recess.<\/p>\n Limitations:<\/strong><\/p>\n These are best suited to covering the entire bi-fold opening<\/em>, like a curtain would.<\/p>\n Drawbacks:<\/strong><\/p>\n \u2705 Key Takeaway:<\/strong> For UK bi-fold doors, Perfect Fit and INTU blinds<\/strong> remain the most popular and practical panel-by-panel solutions.<\/p>\n Gather the following before you begin:<\/p>\n The glazing bead is the rubber or plastic trim that holds the glass in place within the frame. For clip-in systems like Perfect Fit or INTU, this bead is the crucial measuring reference.<\/p>\n Knowing how your doors open helps determine if your blinds will project too far and cause interference. Outward-folding doors tend to offer more internal clearance.<\/p>\n Measure the projection<\/strong> of:<\/p>\n \u26a0\ufe0f Tip:<\/em> If the handles stick out significantly, your blind supplier may offer extended or offset brackets.<\/p>\n <\/p>\n <\/p>\n Look for the rubber or plastic edge around the glass inside the frame. This is where your measurement starts and ends.<\/p>\n \ud83d\udcdd Provide the width in mm, with no deductions.<\/em><\/p>\n \ud83d\udcdd Again, record in mm, exactly as measured.<\/em><\/p>\n This ensures the blind\u2019s clips will fit properly and won\u2019t interfere with door movement.<\/p>\n How to measure:<\/p>\n \ud83d\udca1 Common UK depths:<\/strong><\/p>\n \u26a0\ufe0f If your bead depth falls outside this range, contact the supplier before ordering.<\/em><\/p>\n Slimline or unusually shaped beads may not accept clip-in blinds. Measure how far handles or key cylinders protrude from the frame:<\/p>\n Solutions:<\/strong><\/p>\n Even if all panels look the same, measure each one separately. Variations of just a few millimetres are common in UK installations\u2014and enough to affect the blind fit.<\/p>\n <\/p>\n <\/p>\n While Perfect Fit and INTU blinds are generally the most practical and popular options for UK bi-fold doors, there are scenarios where alternative blind fitting methods may be considered. This section explains when and how to measure for these less common options and outlines their suitability for UK homes.<\/p>\n Typically not recommended for folding bi-fold panels but may suit a single traffic door or recess-mounted applications.<\/em><\/p>\n \u2705 Best reserved for single traffic doors or recess-mounted roller blinds used to dress the entire aperture.<\/em><\/p>\n Used when the goal is to cover the entire bi-fold door set like a curtain, rather than integrate with individual panels.<\/em><\/p>\n \u2705 May be suitable where appearance is secondary to full-coverage functionality, such as in utility rooms or for temporary use.<\/em><\/p>\n <\/p>\n <\/p>\n Measuring for bi-fold door blinds is all about precision. Even a few millimetres can make the difference between a perfect fit and a frustrating installation. This section covers the most common mistakes UK homeowners make\u2014and how to avoid them\u2014so you can measure with confidence and order once, not twice.<\/p>\n The old saying \u201cmeasure twice, cut once\u201d is wise, but for made-to-measure blinds, it\u2019s even better to \u201cmeasure thrice, order once.\u201d<\/strong> This is one of the biggest pitfalls for UK homeowners.\n
INTU Blinds<\/strong><\/h4>\n
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Pleated Blinds<\/strong><\/h4>\n
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Aluminium Venetian Blinds<\/strong><\/h4>\n
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Integral Blinds<\/strong> (Factory-fitted only)<\/em><\/h4>\n
Note for UK buyers:<\/strong> Only available when ordering new bi-fold doors, not suitable for retrofit.<\/p>\nCassette or Slimline Roller Blinds<\/strong><\/h4>\n
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Vertical Blinds \/ Standard Roller \/ Outside Mounted Venetians<\/strong><\/h4>\n
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1.2 Essential Tools You’ll Need<\/strong><\/h3>\n
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1.3 Understanding Your UK Bi-Fold Door Frame<\/strong><\/h3>\n
What Is the Glazing Bead?<\/strong><\/h4>\n
Common UK Frame Materials:<\/strong><\/h4>\n
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Inward or Outward Folding?<\/strong><\/h4>\n
Watch for Obstructions:<\/strong><\/h4>\n
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Measuring for Perfect Fit \/ INTU Blinds (The Most Common & Recommended Method for UK Bi-Folds)<\/h2>\n
<\/p>\n2.1 General Principles (UK Context)<\/strong><\/h3>\n
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2.2 Step-by-Step Measuring Guide<\/strong><\/h3>\n
Step 1: Identify the Glazing Bead<\/strong><\/h4>\n
Step 2: Measure Width<\/strong><\/h4>\n
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Step 3: Measure Drop (Height)<\/strong><\/h4>\n
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Step 4: Measure Glazing Bead Depth<\/strong><\/h4>\n
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Step 5: Assess Frame Profile<\/strong><\/h4>\n
\ud83d\udca1 Tip: Take a photo and ask the blind supplier to confirm compatibility.<\/em><\/p>\n2.3 Dealing with Obstructions: Handles, Hinges & Locks<\/strong><\/h3>\n
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2.4 Measure Each Panel Individually<\/strong><\/h3>\n
Measuring for Other Blind Types<\/h2>\n
<\/p>\n3.1 Measuring for Recess Fit Blinds<\/strong><\/h3>\n
When It Might Be Considered<\/strong><\/h4>\n
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How to Measure (UK Method):<\/strong><\/h4>\n
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Downsides for UK Bi-Folds:<\/strong><\/h4>\n
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3.2 Measuring for Face Fit Blinds (Outside the Recess)<\/strong><\/h3>\n
When It Might Be Considered<\/strong><\/h4>\n
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How to Measure (UK Method):<\/strong><\/h4>\n
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Considerations:<\/strong><\/h4>\n
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Double-Checking and Common Pitfalls (UK Specific Warnings)<\/h2>\n
<\/p>\n4.1 The Importance of Measuring Thrice<\/strong><\/h3>\n
Why? Bi-fold doors involve multiple panels, varied dimensions, and potentially tricky sightlines. Measuring three times helps catch small inconsistencies and boosts your confidence that you’ve got it right.<\/p>\n4.2 Don\u2019t Make Deductions Yourself<\/strong><\/h3>\n