How to make -
Interlined Roman Blind
WORKROOM METHOD
BLIND SAFETY
Blind Safety

This website is viewed globally and at the last time of looking had been used by people from 136 different countries.

The instructions and videos on this website show you the traditional methods of making a roman blind. Many countries have introduced safety regulations with respect to child safety, to reduce the threat of injury or strangulation to young children from the cords of roman blinds.

It is your responsibilty to find out what the regulations are for your country and modify these instructions to make your blind compliant with those regulations

Examples of safety advice and rules used by some countries of the world are:

  • Do not place furniture or beds near windows where children can climb up and access the blind cords.
  • For roman blinds with rod pockets greater than 20cms apart at any point a breakaway device must be used on each cord.
  • The cleat must be 150cms from the floor and accumulate all/most of the cord – only a single cord of no more than 20cms can hang below the cleat.
  • The bottom loop of the chain or cord must be 150cms from the floor and secured with a safety device OR If the operating chain/cord has a breakaway device then the bottom loop of the cord/chain can be 60cms from the floor.
  • Some countries require that all the blind's components have been tested and certified when used together.

BLIND SAFETY
Blind Safety

This website is viewed globally and at the last time of looking had been used by people from 136 different countries.

The instructions and videos on this website show you the traditional methods of making a roman blind. Many countries have introduced safety regulations with respect to child safety, to reduce the threat of injury or strangulation to young children from the cords of roman blinds.

It is your responsibilty to find out what the regulations are for your country and modify these instructions to make your blind compliant with those regulations

Examples of safety advice and rules used by some countries of the world are:

  • Do not place furniture or beds near windows where children can climb up and access the blind cords.
  • For roman blinds with rod pockets greater than 20cms apart at any point a breakaway device must be used on each cord.
  • The cleat must be 150cms from the floor and accumulate all/most of the cord – only a single cord of no more than 20cms can hang below the cleat.
  • The bottom loop of the chain or cord must be 150cms from the floor and secured with a safety device OR If the operating chain/cord has a breakaway device then the bottom loop of the cord/chain can be 60cms from the floor.
  • Some countries require that all the blind's components have been tested and certified when used together.

Materials
  • - Fabric
  • - Lining
  • - Interlining
  • - Thread
  • - Velcro Loop Tape
  • - Buckram (optional)
  • - Rods
  • - Bottom Bar
  • - Rings or Breakouts
  • Tools
  • - Sewing Machine
  • - Tape Measure
  • - Needles
  • - Scissors
  • - Set Square
  • - Straight Edge
  • - Invisible Marker
  • Headrail
  • - Wooden Batten
  • - Velcro Hook Tape
  • - Screw Eyes
  • - Acorn
  • - Cleat Hook
  • - Cord
  • - Staple Gun
  • or
  • - Headrail Kit
  • - Hacksaw
  • Step 2: Calculate the Blind Dimensions
    Printable Worksheet
    Printable Worksheet

    You now have the finished blind width, length and a preferred Top Section size

    Next you need to calculate the number of rod pockets on the back of the blind and their positions. This will determine the style and depth of the blind when it is pulled up.

           

    The making process is the same for all 3 styles of blind, the only difference is the calculation of the number of rod pockets and their positions. In our tutorial videos we will be making a standard folds blind where flaps all line up in the up position. If you are making a cascading blind or a blind with an extended bottom flap, see the links at the bottom of the page for some extra information.

    DETERMINE YOUR HEADRAIL ALLOWANCE

    First we need to establish the Headrail Allowance

    The headrail allowance must be sufficient to cover the batten/headrail face and allow enough room under the blind for the folds to pull up to the correct position..

    We use a minimum of 6.5cm for headrail allowance for our headrails. As a general rule use an absolute minimum headrail allowance of:

    Headrail mechanisim: Headrail depth + 2.5cm
    Traditional wooden batten: Batten face + 3.5cm

    Please see our BLOG entry HEADRAIL ALLOWANCE EXPLAINED for more detail

    STANDARD FOLDS CALCULATION

    • Deduct the headrail allowance from the finished blind length to give the amount of fabric to be folded.
    • Divide the length of fabric to be folded by an odd number of fold sections - this will be the fold depth for that number of fold sections.
    • Add the headrail allowance to the fold depth to get the Top Section size.
    • Find the odd number that gives a Top Section size nearest your preferred Top Section size.
    • The odd number that was closest is now your number of fold sections and the answer in (2.) is now the depth of your folds.
    • The number of rod pockets = (number of fold sections -1) divided by 2

    PRO TIPS

    1. When choosing the best Top section size also consider your pattern if using patterned fabric. If possible choosing a depth that gives the best pattern placement when the blind is up.
    2. Adjust the headrail allowance slightly to tweak a Top section size. (never below minimum). Eg when trying to get 2 blinds of slightly different lengths the same size when pulled up, or getting the Top section the perfect size for the pattern.

    ROD POCKET POSITIONS

    With the number of rod pockets (3) and fold depth (12.0cm), we can now calculate the rod pocket positions

    Ttry our online calculator to check your figures.

      EXTRA INSTRUCTIONS


    To calculate the rod pocket positions for a cascading blind please use our FREE Cascading Roman Blind Folds Calculator



    To calculate the rod pocket positions for a blind with a bottom flap please use our FREE Cascading Roman Blind Folds Calculator

    Enter your bottom flap size and a cascade increment of 0. The folds will then all line up with just the bottom flap hanging lower when the blind is pulled up.


    FAQs

    Yes that is normal,standard folds form a very slight cascade due to the way the rods and rings stack on each other when the blind is pulled up. The calculation of the rod pocket positions means that if the rods were all pulled up to exactly the same height, all the folds would be exactly inline. (see image)

    However that is not how a blind pulls up, the rods and rings stack on each other on the cord which creates a very slight cascade. If you were really wanting to make the folds line up exactly inline you would have to make make an adjustment to your rod pocket position calculation . It would involve making a mock up to see what the slight cascade depth is caused by the type of rod pockets and ring/breakouts you are using. Then recalculating the rod pocket positions to adjust for this. (this is not something we do)

    Your Questions & Comments

    Ann Parry

    This is amazing thank you so very much.

    I have always been unsure how or should I say where to put my rod pockets but think I have finally got it luckily I came across this information, as I wanted the folds to cascade slightly, if I hadn’t seen this I would have not got that effect,I cannot thank you enough.

    Also I am making them for my daughter so she too would have been disappointed but would never have said to me.

    Once again thank you.

    Regards

    Ann Parry. Xx????

    Rosie

    I want my blinds to be outside the recess and be interlined. Is it best to have fewer folds if they are interlined? I'm just trying to work out how far above the window they will need to be positioned

    SewHelpful:

    Interlined blinds are thicker than lined, the more folds you have the more likely they are to push out when stacked at the top. Up to 3 or 4 rods ( 5 or 7 pleat sections) usually works fine, on long blinds we have done more.

    The thickness of your fabric and the thickness of the interlining is a factor. You will see in the videos we use a fine interlining.

    Caroline Warwood

    Hello I'm confused about the head rail allowance...do you not just measure the depth of the roman blind cassette attachment. I normally deduct 5cm. Is that right?

    SewHelpful:

    We add a lttle bit more than the depth of the cassette attachment (x 1.5) to allow for some room for the rings of the blind to pull up underneath when the blind is fully pulled up.

    The tutorial is also for a traditional wooden batten headrail with ring eyelets underneath. The extra room underneath is more important here as the rings only pull up to the eyelet not the bottom of the batten.

    Ann Whettingsteel

    am making a recessed roman blind with bobbles on the drop edge. Do i have to make the blind smaller so the bobbles just touch the windowsill.Also so the bobbles show when the blind is fully up do I have to put a dowel rod pocket nearer the bottom of blind.

    SewHelpful:

    Make the length of the blind the drop you measured in step 1 minus the size of the bobbles. Calculate your pocket and folds based on this shorter length. Then attach your bobbles to the bottom of the blind.

    The total blind length including bobbles should now be your measured drop. So the bobbles will just touch the sill when the blind is down. When the blind is pulled up, all the folds will be in line and the bobbles will just hang below at the front.

    The bottom of the blind has a bar in it already.

    Caroline

    I have made a roman blind where the drop is 208cm in length.

    I used the calculator and went with the pleat sections and rod pockets all being 40.6cm with two rod pockets in total. My question is when lowering the blind can it stop and sit at any point of the blind (half way down a fold)or should it sit only on the folds ?

    SewHelpful:

    You can lower a blind to where you like. 2 rod pockets for that length blind doesn't sound enough for a conventional looking blind.

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