Measuring guide · Indoor roller blinds

How to measure for your roller blind

Reading time: 8 minutes

Every window is different, which is why we make our roller blinds to measure for the space you want to cover.

This guide shows you what to measure, in what order and how to arrive at the measurement to enter in the configurator, so your blind fits with no surprises.

PREPARATION

What do you need?

You only need a few tools. Have ready:

  • a rigid tape measure, ideally metal;
  • a pencil and paper to note down the measurements;
  • a ladder or step stool, if the window is high.

Each blind is made to measure, within these limits:

  • Finished width, brackets included: 60 to 280 cm
  • Height, bottom bar included: 30 to 300 cm

STEP 1

Check for obstacles

If something gets in the way of the fabric as it comes down, in most cases you can simply switch from wall fitting to ceiling fitting.

Before measuring, check that the fabric can come down without touching anything. In particular, look at:

Windowsill protruding into the room

With wall fitting, if the windowsill sticks out from the wall by more than 8 cm, the fabric touches it on the way down, before reaching the bottom.
Choose ceiling fitting and fix the bracket far enough from the wall to clear the windowsill.

Protruding handle

If the handle sticks out from the wall by more than 8 cm, the fabric touches it on the way down.
Measure how far it sticks out. If it's more than 8 cm, choose ceiling fitting and fix the bracket further from the window.

Tilt-and-turn or tilting window

When tilted open, the sash leans into the room and can hit the brackets or the fabric.
Open the window in this position and measure how far the sash sticks out from the wall. If it's more than 8 cm, choose ceiling fitting and fix the bracket further from the window.

Radiator under the window

If the radiator sticks out from the wall by more than 8 cm, the fabric rests on it.
Measure how far it sticks out. If it's more than 8 cm, choose ceiling fitting and fix the bracket further from the wall, or give us the measurements for a shorter blind so that it stops above the radiator.

Air vent

If there's an air vent near the window, the lowered blind mustn't cover it. In many rooms, for example where there are gas appliances, the vent is there for safety.
Check where the vent is in relation to the fabric. Choose the width, height or fitting type so that it stays clear.

Existing curtains or other systems

Poles, tracks, pelmets and brackets from old blinds can take up the space needed for the brackets or get in the way of the fabric.
Measure how much space they take up. If you want to keep them, choose a fixing point that leaves room for both systems.

Other items near the window

Air conditioners, wall lights, shelves or furniture can take up the space needed for the brackets or stop the fabric before it reaches the bottom.
Check that the fixing point and the fabric's whole path are clear, and that the blind doesn't block the air conditioner's airflow. If the item can't be moved, change the fixing point or the width.

Allow space to open the window

With the blind raised, the bracket and bottom bar take up 10.5 cm in height: this is the space you need above the window, to open it without hitting the blind.

With wall fitting, the gap between the wall and the fabric is about 8 cm: check that the sash, the handle or the windowsill don't stick out further than that.

SO, WHAT DO YOU NEED TO DO?

Check that the fabric can come down freely.

  • Go over the windowsill, handles, sash, radiator and anything on the wall near the window.
  • If anything sticks out more than 8 cm, consider ceiling fitting.
  • Keep air vents clear.

⚠ WARNING

Check for pipes and electrical cables before choosing the fixing point.

There may be hidden pipes or wiring where you want to fix the bracket. 

STEP 2

Choose where to fix the bracket

Before taking any measurements, decide where you'll fix the bracket: on the wall or on the ceiling. 

On the wall

The bracket is fixed to the wall, above the window. With this fitting the fabric hangs about 8 cm from the wall.

On the ceiling

The bracket is fixed directly to the ceiling. It's the right choice when there isn't enough space on the wall, or when the blind needs to hang more than 8 cm away from the wall.

SO, WHAT DO YOU NEED TO DO?

Decide where to fix the bracket before you measure.

  • Check how much space there is above the window.
  • Choose whether to fix the blind to the wall or the ceiling and note it down.

STEP 3

Measure the width

In the configurator you can give the width in two ways (see the drawing below):

  • Option 1: give the fabric width
  • Option 2: give the total width, brackets included

Option 1: fabric width

You know how wide you want the fabric to be. We add the space taken up by the brackets.

So measure the width of the glass, or of the whole frame if you want to cover it. 

We recommend adding 10 cm of overlap

We recommend adding 5 cm on each side, 10 cm in total. Without this margin, when you look at the window from the side you can see part of the glass or frame you wanted to cover, and more light gets in at the sides.

WITHOUT OVERLAP

WITH OVERLAP

Option 2: total width, brackets included

Choose this option if the blind needs to fit a specific space. Mark on the wall or ceiling where you want the outer edges of the two brackets to be, then measure from one mark to the other: this is the total width. We deduct the space taken up by the brackets, so the fabric will be about 5 cm narrower than the total width.

Here are some typical cases where it's better to measure from the brackets.

Space limited at the sides

The window is in a recess, between two walls or in a corner: the blind, brackets included, needs to fit in.

Obstacles next to the window

A wardrobe, a shelf, a vertical radiator or a wall a few centimetres away limit how far the brackets can go.

Side-by-side blinds

On a wide glazed area the customer splits the total space between two or more blinds, so they work with the finished width of each one.

Lining up with existing features

The blind needs to finish in line with a pelmet, a beam, a suspended ceiling or another blind in the same room.

Replacing a blind

The customer removes an old blind and wants the new one to take up the same space, perhaps using the same holes.

Wall-to-wall blind

The customer wants to cover the wall from one side to the other, not just the window.

SO, WHAT DO YOU NEED TO DO?

If you know how wide you want the fabric to be:

  • Measure the width of the glass or of the whole frame.
  • Add 5 cm on each side.
  • In the configurator choose “Fabric width”.

If you know how wide the blind needs to be, brackets included:

  • Mark where the outer edges of the brackets will be.
  • Measure from one mark to the other.
  • In the configurator choose “Total width”.

Measure every window separately, even when they look the same. With just a few millimetres' difference, a blind made to another window's measurements can turn out too narrow or too wide.

⚠ WARNING

Remember to choose the right option in the configurator.

STEP 4

Measure the height

Find the point where you'll fix the bracket, on the wall or ceiling, and measure from there to where you want the fabric to reach: the bottom edge of the windowsill, or the floor if you want a fuller look.

Fixing point (top) → where you want the blind to reach (bottom) = height to enter

You don't need to add or subtract anything: the measurement you take is the one we make. The height ranges from 30 to 300 cm, bottom bar included. If the blind reaches the floor, subtract 1 cm so the fabric doesn't drag on the floor.

If you want a manual blind, also measure the height from the floor

Measure from the floor to the point where you'll fix the bracket. For safety reasons the chain must end at least 150 cm off the floor and is at least 50 cm long: that's why a manual blind can only be fitted from 200 cm upwards. Below 200 cm you can only choose a motorised blind.

SO, WHAT DO YOU NEED TO DO?

Measure from the fixing point to where you want the fabric to reach.

  • Mark the point where you'll fix the bracket.
  • Measure to the bottom edge of the windowsill or to the floor.
  • Check that the measurement is between 30 and 300 cm.

STEP 5

Got your measurements? Configure your blind

At this point you have everything you need:

  • width: of the fabric (glass or frame + overlap) or finished (from one fixing point to the other), with the matching option;
  • height: from the fixing point to where you want the fabric to reach;
  • installation height from the floor: only if you choose a manual blind.

Open the configurator, enter your measurements and choose the fabric. If you're unsure about the fabric, read the guide before configuring: you can order physical fabric samples. For any questions about measurements, there's a free video consultation.

Don't order with a measurement you're unsure of.

The blind is made to measure: write to us first, and our team will check the measurements with you before it goes into production.

SPECIAL CASES

French doors and sliding doors

French doors and sliding doors

Measure as you would for a window, taking the same constraints into account. The blind usually reaches the floor: measure from the fixing point to the floor and subtract at least 1 cm, so the fabric stays just off the floor and doesn't drag. 

Side-by-side blinds make it easier to open a French door

For doors with several panels we recommend one blind per panel: you can raise just the one you walk through and leave the others down.

Multiple side-by-side blinds

The maximum finished width, brackets included, is 280 cm. For a wider glazed area you need two or more side-by-side blinds.

How do you measure in this case?

  1. Measure the total width to cover, from one fixing point to the other.
  2. Decide how much space to leave between one bracket and the next and, if needed, subtract it from the total width. You can also fit them right next to each other.
  3. Divide the result by the number of blinds. Each blind must be between 60 and 280 cm wide.
  4. In the configurator choose the “Finished width” option and enter the measurement for each blind.

For side-by-side blinds with adjoining brackets

Bear in mind there will be a gap of about 5 cm between the two fabrics.

Tips from the Centro Stile Maanta

Fix all the brackets at the same height and on the same plane, and give every blind the same height: this gives the glazed area a continuous line at the top and bottom.

If the glazed area has a mullion, place the split there: the gap sits in front of the mullion and doesn't let light through. If the mullion isn't in the middle of the glazed area, the blinds will have different widths: measure each one from its fixing point to the centre of the mullion.

FAQs

TOPIC (ADD ONE FOR EACH SECTION OF THE GUIDE)

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FAQs

FAQ

We make every blind to measure, with an overall width from 60 to 280 cm, plates included, and a height from 30 to 300 cm, bottom bar included.

No. Our indoor roller blinds are fixed to the wall above the window or to the ceiling.

Enter the fabric width if you know how wide you want it: measure the glass or frame and add 5 cm on each side. Enter the overall width if the blind has to fit a specific space, for example a niche, between two walls or next to a piece of furniture.

That way the fabric also covers the edges of the window, less light comes in at the sides, and when you look at the window from an angle, you don't see the glass or frame: it's an aesthetic recommendation from Centro Stile Maanta, our in-house style office in Italy.

No. We make the exact height you give us: if you add extra, the fabric will hang lower than you wanted. Only if the blind reaches the floor, subtract 1 cm so the fabric doesn't drag on the floor.

With the blind raised, the plate and bottom bar take up 10.5 cm of height. That's the space you need above the window to open it without hitting the blind, whether you fit it to the wall or the ceiling.

With wall fitting, about 8 cm. If the sill, handle or radiator sticks out further, choose ceiling fitting.

Yes, if you fit the plate at least 200 cm off the floor. For safety reasons, the chain must end at least 150 cm above the floor. Below 200 cm, you can only choose the motorised blind.

Yes, a manual blind can be motorised even after purchase.

No, measure each window separately. Even a few millimetres' difference can make a blind too narrow or too wide.

Use two or more blinds side by side. Measure the overall width, decide how much space to leave between the plates and divide the measurement by the number of blinds. You'll find all the steps in the “Special cases” section.

Yes, even with the plates butted together, there's about 5 cm with Kyma and about 4.3 cm with Recta. If the glazed wall has a mullion, put the split there: the gap ends up in front of the mullion.

Write to us before you order: our team will check the measurements with you before your blind goes into production.