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How To Measure

  • Overview
    These basic tips will get you perfect measurments for window blinds! See category sections below for more details. How To Measure Inside and Outside Mount Illustrations

    Inside Mount:

    1. Make sure that your window has enough depth to accommodate the product you have chosen. Refer to the "Mounting Requirements" section for the product you have chosen. If your window does not have the required depth, choose another product, or an outside mount.
    2. Provide the exact window opening size. Take NO deductions. The factory will ensure that your product will fit snugly in the window, and will operate properly. Please note that inside mounted roller blinds will have a vertical light gap between the blind and the window frame of approximately 20mm on either side to accommodate the operating mechanisms.  

    Handy Hint: Double Roller Blinds require 120mm of clear depth in the window frame to have the blinds sitting flush in the window frame.  However, if you are happy with the front blind sitting forward off the window frame, you only require as little as 60mm clearance in the window frame.

    Width: For Sunscreen Roller Blinds, Blockout Roller Blinds and Double Roller Blinds record the inside width at the top of the window only. For Venetian Blinds record top, middle and bottom measurements, using the smallest measurement.
    Height: For Sunsreen Roller Blinds, Blockout Roller Blinds and Double Roller Blinds measure the inside height in 3 places; left, centre and right and take the largest measurement. For Venetian Blinds measure the height in 3 places; left, centre and right and record the largest measurement. 

     

    Outside Mount:

    1. Measure the exact width from the top left edge of the window frame or architrave to the top right edge of the window frame or achitrave. Your product will be made to the exact size you specify.
    2. Measure the height in 3 places; left, center and right and take the largest measurement.
    3. Add extra width on the sides, top and bottom if you require more privacy and light blockage.

    Handy Hint: Be aware of obstructions like molding, doorknobs and deadbolts that might get in the way of your blind. Don't forget Double Roller Blinds will be protruding up to 120mm past the window.

  • Aluminum Venetian / Visionwood Venetian Blinds
    Visionwood blinds are made from synthetic material that have the look of real wood blinds for less. Aluminum blinds , also called mini blinds, are the standard horizontal blinds that are most common in windows.

    Measuring - Inside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure to the exact width from left to right of the window recess at the left, centre and right - don't round your measurements.
    • Measure the height in 3 places inside the window recess; left, center and right and take the largest measurement.
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window blinds inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. You require at least 60mm internal clearance from inside your window frame to enable the blind to go up and down without obstructions.  However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Specific Measuring Instructions Below:

    For an inside mount:

    Measure the opening width at the top, center and bottom, recording the smallest width. Always measure using a steel tape measure. See tip below.

    Measure the height left, right and center, recording the largest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly of square, you might want to consider an Outside Mount to hide the window.

    Measuring - Outside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure the exact width from the top left edge of the window frame or architrave to the top right edge of the window frame or achitrave. Your product will be made to the exact size you specify.
    • Measure the height in 3 places; left, center and right and take the longest measurement
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Specific Measuring Instructions Below:

    For an outside mount:

    After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

  • Sunscreen / Blockout Roller Blinds
    Roller and solar shades are stylish fabric shades that can easily be lowered or raised by hand.

    Measuring - Inside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure to the exact width inside from left to right of the window recess
    • Measure the height in 3 places inside the window recess; left, center and right and take the largest measurement
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Handy Hit: If you choose to back-roll your blinds, you require 60mm clearance from the frame to accommodate for the fabric and roll tube.  However, if you choose to front-roll your blinds, you require 20mm clearance from the frame to accommodate for the fabric and roll tube.

    Specific Measuring Instructions Below:

    For an inside mount:

    Measure the exact inside width from left to right of the window recess and record the exact measurement.

    Measure the inside height left, right and center, recording the largest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly of square, you might want to consider an Outside Mount to hide the window.

    Measuring - Outside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure to the exact width outside from left to right of the window recess
    • Measure the height in 3 places outside the window recess; left, center and right and take the largest measurement
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - You have a choice to either back-roll or front-roll, if you choose to back-roll the blind it be closer to the window and maximum privacy and minimum light gap coverage.

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Specific Measuring Instructions Below:

    For an outside mount:

    Measure the opening width. If there is room, add at least 3" to each side of the window opening for minimum light gap coverage and maximum privacy.

    For an outside mount we will not take any deductions off the tip to tip width, but there will be slight deductions off the fabric. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly of square, you might want to consider an Outside Mount to hide the window.

  • Double Roller Blinds
    Double Roller Blinds provide you a stylish finish with the best of both worlds that either blinds can easily be lowered or raised by hand.  There are 3 different applications for Double Roller Blinds; Both blinds back-rolled - both blinds will sit as close to the window as possible, Both blinds front-rolled, which is great for inside mounting blinds and if there are obstructions that you need to avoid, or Rear blind back-rolled and front blind front-rolled.

    Measuring - Inside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure to the exact width outside from left to right of the window recess
    • Measure the height in 3 places outside the window recess; left, center and right and take the largest measurement
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will take all the proper allowances for it to fit into that opening.

    Is an Inside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. You will require at least 120mm of clear depth in the window frame to have the blinds sitting flush in the window frame.  If you are the blinds sitting forward off the window frame you then only require as little as 60mm clearance in the window frame.  However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements. We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Handy Hint: It is also equally important to decide which fabric to have as the front blind and which to have as the back blind.  In most cases the sunscreen blind is at the rear, however if outside mounted for better room darkness and privacy we suggest to have the blockout blind as the rear blind.

    Specific Measuring Instructions Below:

    For an inside mount:

    Measure the exact inside width from left to right of the window recess and record the exact measurement.

    Measure the inside height left, right and center, recording the largest height.

    When you specify inside mount, the factory will make your blind slightly narrower than you specified to allow for operating clearance. The deductions are made so that the blind will not rub or scratch your window frame. So do not take the deduction yourself. Provide the exact window opening width.

    For a flush inside mount (the blind completely recessed so that the top of the blind does not project out of the opening) check that you have enough depth.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly of square, you might want to consider an Outside Mount to hide the window.

     

    Measuring - Outside Mount

    • Print the Cheapblinds MEASUREMENT FORM
    • Use a steel measuring tape.
    • Measure to the exact width outside from left to right of the window recess
    • Measure the height in 3 places outside the window recess; left, center and right and take the largest measurement
    • On your notes, clearly indicate which measurement is the width and which is the height. It is very common to transpose measurements. Always indicate the WIDTH measurement first, then the HEIGHT last. (W x H)
    • Remember one very important thing when measuring for an outside mount - You have a choice to either back-roll or front-roll, if you choose to back-roll the blind it be closer to the window and maximum privacy and minimum light gap coverage

    Is an Outside Mount Right For Your Window?

    Before taking any measurements, step back from your window and decide if you want to mount the window treatment inside the window recess, or outside on the wall or molding. We usually recommend an inside mount when possible because it provides a cleaner look. However, an outside mount can make a window appear larger or hide an unattractive window. For an inside mount, the window opening must have enough unobstructed depth to allow mounting. When measuring for an outside mount, be sure to allow for the height of the product's headrail in your measurements.

    We will custom make your blinds to the sizes you write on the order. If these sizes are incorrect it is impossible to change the blind, so take your time and double check your measurements.

    Handy Hint: Double Roller Blinds require 120mm of clear depth in the window frame to have the blinds sitting flush in the window frame.  However, if you are happy with the front blind sitting forward off the window frame, you only require as little as 60mm clearance in the window frame.

    Specific Measuring Instructions Below:

    For an outside mount:

    For an outside mount we will not take any deductions off the tip to tip width, but there will be slight deductions off the fabric. After determining the measurements that you want the blind to be, hold the tape measure up to your window and visualize what the overall size will look like on that window before proceeding.

    Tip: When measuring, don't be surprised if your windows aren't square - many aren't. If they're a little out of square, it probably won't be noticeable. If your window is significantly of square, you might want to consider an Outside Mount to hide the window.

     

  • Special Measurement Considerations

    French doors

    The wider and taller you specify your product, the better your privacy, insulation, and light control. You also need room (50mm-65mm) for the mounting brackets at the top, and the optional hold-down brackets (about 50mm) at the bottom. Consider mounting the window treatment a bit higher than you’d think so when the blind is raised it blocks less of your view. Add at least 3" at the top.

    For the width, add at least an inch or two on both sides of the glass. Usually the deadbolt latch, however, will constrain the width you’d prefer. The product will usually fall just inside the deadbolt. In the case of a lever handle, certain products will slip between the handle and the door.

    All products will work on either a wood or metal door. For metal doors, you’ll probably need "metal screws" designed for attaching to metal doors, which are normally hollow.

    Measuring for a Window with Trim or Molding

    If you are using an outside mount and your window has trim, you should measure from the far left side of the trim to the far right side of the trim (so as to cover all trim from the start of one side to the end of the other). Give that measurement as your width. If you would like for your window trim to show, then give us the measurement of the window opening. If you want some trim covered but not all, add that amount to the width and be sure to add for both sides (exmaple - you want to cover 50mm of trim, so you would take the window opening width, and add 100mm (50mm of trim to cover x 2 sides). For the height, measure from the top of the trim to the bottom of the trim or sill. If you wish to mount above the trim, measure starting 50mm above the molding to the bottom of the trim or sill, and that will be your height.

    Tile and wood obstructions

    Sometimes tile or trim wrap around into the window, usually several inches up from the bottom. This is common near kitchen sinks (back-splashes) and bathtubs. Most products can be cut by the manufacturers on the products’ sides to accommodate this. There is a slight surcharge depending on the product and whether the cutout is on one or both sides.

    Measure so that your product hangs in front of the crank. Consider adding an inch or so to mitigate the slight bulge the product will make as it hangs in front of the crank. Also, the crank can usually be removed or re-positioned to point upwards, which minimizes its projection and obstruction. You may also be able to find a crank replacement device that looks like a wing-nut, and has a tiny projection.

    Windows without a top (arched/angled top)

    There is no special measuring required, but you'll need to ask for side-mount brackets.

    Corner windows

    When two outside mount roller blinds meet in a corner, or when other inside mount products meet in a corner where there is only glass (no sheet rock), there can be a privacy problem. That's due to a gap where the products "meet". In order to minimize the problem, consider butting up the blinds, then specify the other product to butt into the first. (See illustration below.)

    Bay Windows

    You will need poster board to help you correctly assess the measurements for your bay windows. First determine the depth of the product you are mounting and use this for the width of your poster board. You can obtain this depth on product pages or support from out customer service team by calling 1300-884-724.

    Next cut out two pieces of poster board that are the width of the product depth by 12" long. If extra clearance requires the use of extension brackets or spacer blocks, include the extra clearance to the width dimension of the poster board.

    Place the strips you have cut as shown below. Position strip "A" in the left angle first, then bring together strips "A" and "B" until the front corners of the poster board meet. This will give you the correct angle. Mark points "A" and "B". Repeat for strips "C" and "D".

    Measure from the left corner of "B" to the right corner of "C" to determine the width measurement of the center window treatment. Measure from the right corner of "A" outward to the desired width to determine the width measurement of the left window treatment. Measure from the left corner of "D" outward to the desired width to determine the width measurement of the right window treatment.

    The height of the window treatments are determined by standard horizontal blind guidelines.

    Handy Hit: Call our team for clear instructions and assistance as these window shapes can be very tricky.