Measuring for multi panel windows, sliding & bifold doors for Roller Blinds
(inside the frame)
Most sliding doors do not have enough depth to allow you to mount the blind inside the recess. You will need to have at
least 60mm’s, although you can get away with a minimum of 30mm’s, allowing the blind to project forward out of the recess
into the room.
Also make sure that the door doesn’t have a lip in the centre of the door, preventing recess mounts. If recessing your roller
blinds, we recommend that you front roll the cloth to help clear of the handle when operating.
We only recommend one blind when recessing. If you have two blinds, you must make sure the blind beside the door, is not
in the down position when opening the door, otherwise it will easily get damaged.
You have an option of having 1 or 2 blinds.
- Measure the width from the outside edge of the frame, left to right.
- If you require 2 blinds, then measure from the outside left architrave edge, to the centre of the mid panel for Blind 1.
Repeat from the right side to the centre of the panel for Blind 2. Make sure the two measurements add up to the overall
Note: Not all panels are even and simply halving the overall width may cause a slight imbalance of the
2 blinds. It is always better to measure each panel, then making sure the 2 add up to the overall width. (B1 + B2 = A)
Measure the drop from the top of the architrave to where you want the blind to finish.
Chain controls will be on the left for the left hand blind and the right for the right hand blind.
3 Panel Door
As you do not want to have a gap between the cloths over the glass, we do not recommend 2 even blinds on 3 panel doors/glass.
It is always best to have the cloth gaps, over the timber or aluminium mullions.
Your options are;
3 individual blinds
2 Blinds - 1 Blind over 2 panels and the other over 1 panel
1 Blind if the width does not exceed 3000mm
3 Individual Blinds
A1 - For the left hand blind, measure from the outside edge of the left architrave to the centre of the panel mullion.
A2 - For the central blind, measure from the centre point of the left mullion to the centre point of the right
A3 - For the right hand blind, measure from the outside edge of the right architrave to the centre of the panel
B - Measure the overall width from the left hand architrave edge across to the right hand architrave edge.
Make sure all 3 individual measurements add up to the overall width.
Important-Australian Child Safety Law awareness for 3 Panel Sliding Doors
It is against Australian child safety laws to allow a unsecured chain on a blind. All blinds must have a child safety device
fitted and secured in place to prevent the risk of child strangulation. If the door is in the middle of a 3 panel window,
this may prevent the child safety device from being secured on the middle bind. There are only two options that you can
- The central blind must have a shorter chain no longer than 1.6m from the floor. You can request this in the comments field
at the checkout of our website. Please let us know the length required.
- The central blind must be ordered with a multi link, connecting the operation to one of the outer blinds. Our website has
the option of adding a multi link in the Design and Order section. A multi link allows the middle blind to operate in unison
with the adjoining blind.
- Failure to request one of the above 2 options will leave your blinds at risk of causing child strangulation and breaking
the Child Safety Laws. Blindsonline can not be held accountable for your failure to secure the blinds as requested.
2 Individual Blinds
Decide which side the 2 panel and 1 panel blind is best suited. Follow the same measuring procedure as listed above.
1 Individual Blind
Simply take the overall width x drop. It is recommend that a single blind does not exceed 3000mm width. Keep in mind the
traffic going through the door and the operation of a single large heavy blind.
- The amount of panels will determine the combination of blinds.
- Do not split the blinds over the middle of a glass panel, always divide over the timber or aluminium mullion
- Make sure the chains have a position to secure the child safety device. Due to the operation of the doors, 2 Blinds are
- Make sure measurement A & B add up to the overall width of the bifold doors
Bifold Doors Recess Mount
There is often not enough depth for mounting the blinds inside the recess and face mounts are generally the method recommended.
However if you do have a deep recess and you would prefer to mount your blinds this way, simply follow the same principals
above for dividing the binds in the centre of the door frames to the combination you prefer.
Measurements are taken from inside the frame as shown above