
You don’t need much to measure your bay window, but to do it accurately it’s advisable to use the following:
- A DIY style tape measure. This needs to be the kind that uses a rigid yet flexible metal stip. Don’t use a fabric tape as this may stretch, and a 30cm rule is definitely not recommended.
- A protractor to measure the angles. ...
- Something to stand on. ...
- A pen or pencil, and something to write the measurements on. ...
- Measure 12″ from the back corner along the side wall and make a small (light) pencil mark on the wall.
- Measure 12″ from the back corner along the back wall and make a small (light) pencil mark on the wall.
- Measure the distance between your two pencil marks and enter that number.
How do you measure the width of a bay window?
Measure the width of the central pane. For instance, this pane may measure 25 inches. Measure the entire bay's width. For instance, the bay may be 50 inches in width. Subtract the central pane's width from the whole bay's width. With this example: 50 - 26 = 24 inches. Divide this answer by 2: 24 ÷ 2 = 12 inches.
How do you trim a bay window on a wall?
Start at the large window opening at the front of the bay window. Inspect the trimmers at each side of the opening to make sure they fit tightly against the corresponding studs at the sides of the opening. If necessary, use a hammer to hit the face of a trimmer so it fits tightly against the stud from top to bottom.
Do you measure a bow or bay window for curtains?
A traditional bow or bay window is a beautiful asset to your home, providing a cozy nook or a light-filled extension to a room. But measuring them for new curtain rods may be intimidating! We’ve put together an easy to follow guide to help you measure your bow or bay window perfectly, without any hassles. Let’s first look at a few basics.
How do you bend a bay window rod?
This template gets used to bend the rods by hand, ensuring a perfect fit for your windows. Lay a large piece of paper on the floor, lining up the edge with the front edge of the bay window. Use a craft knife to cut along the back and sides, mimicking the shape.

What is the typical angle of a bay window?
A Bay Window is typically made of 3 openings, with a picture window (fixed) in the center. Normally the angles of the opening are set at 15, 30 & 45 degrees – although custom angles are available.
How do you measure a window angle?
Measure the height of the “tall side” of the window opening, from the bottom edge to the top corner of the angled portion (for an angle-top window), or from the top edge to the bottom corner of the angled portion (for an angle-bottom window). Record this measurement (to the closest ⅛”) as your height.
Are all bay windows 45 degrees?
All major window manufacturers offer angled bay windows in both 30- and 45-degree configurations; a few make 60-degree bays. Most also offer 90-degree box bays.
What is the best way to measure a bay window?
Begin by measuring the widths of the two windows forming the ends of the bay. Place the tape measure tip on the seam between the casing trim and window frame. Extend tape measure until it reaches the center of the adjoining window's joint with the window that you're measuring. Record the width measurement on paper.
How do you measure an angled bay window for Venetian blinds?
For the drop of your blinds, simply measure from the top of where you want the blinds to fit, down to where you would like the bottom of the blinds to rest (this is usually the window-sill, if you have one). Take this measurement in at least three places across the bay window and use the smallest measurement.
What tools will you use in measuring angles?
The types of tools to measure angles fall into one of three categories: protractors, squares and compasses. There are many variations of these basic tools. A protractor is one of the most common tools to measure angles. When you know how to use a protractor, you can measure both small and large angles.
What is the difference between a bay window and a bow window?
A bay window's overall structure consists of a picture window with two other windows, usually smaller, on either side. A bow window's structure is curved, creating a rounded appearance on the outside of the home. (These bow windows are usually referred to as a "four-lite bow" or a "five-lite bow.")
Are there different types of bay windows?
Even with all that design flexibility, there are really only four different types of bay windows:Canted Bay Windows. Canted bay windows have the classic shape you expect to see in a bay window. ... 2. Box Bay Windows. Box bay windows are structurally the same as canted windows. ... Oriel Windows. ... Circle Bay Windows.
Do bay windows make a room colder?
Bay windows are in my opinion a stunning feature of a house which I just love – however they can cause draughts leaving the room feeling a lot colder and in turn means using more energy to maintain a warmer room.
How do you measure a bay?
Starting from left to right, measure the width of the first window of your bay up to the angle of the next bay, continue until you've measured all bays. Make sure you write down the measurements in centimetres.
How far out does a bay window protrude?
When considering a bay window, keep in mind that a 30° bay projects about 13 inches from the house, while a 45° unit projects about 19 inches.
How far do bay windows stick out?
about 13-14 inchesA 30-degree bay window will jut out about 13-14 inches, with larger bay windows requiring even more space on the exterior. To prevent sagging, most bay windows are propped up and supported by braces that are screwed to the frame of the home right below the window.
How can I tell the position of my window?
SolutionThen right click the title bar of the window of which you would like to know the position and size.Select the option Resize/reposition from the context menu. Select 'New entry …'Now, you can see the width and height as well as the top and left offset for your window:
What tool is used to measure the angle of the doors and windows?
Angle finders are used to accurately measure angles with ease and have a wide range of uses, making them a must have tool for plumbers, builders, joiners and DIYer's.
Do you measure a window from inside or outside?
Run a tape measure from the outside of the frame to the inside and take the measurement from edge to edge of the window frame. Do this in several locations around the window frame and rely on the smallest measurement once again as your final dimension.
Do you measure windows diagonally?
With the tape measure, measure the window's diagonal from the top-left corner to the bottom-right corner. Next, measure from the top-right corner to the bottom-left corner. If the numbers are within one fourth of an inch of each other, the window is a candidate for a replacement window—the focus of this project.
How to measure for a window pole?
Now you can actually take the measurements. Measure from where you would like the pole to start to the first angle, then measure from angle to angle around the bay window and finally from the last angle to where you want to pole to end. Bear in mind you might need some overhang on either side of the window so the curtains don’t block the view when they’re drawn back.
What is the best way to measure angles?
A protractor to measure the angles. We can supply an adjustable plastic protractor which makes the process really easy, or you can download a paper version from our website. Alternatively, you can fold a piece of paper to the angle of the bay window and use a traditional semi-circular protractor to measure it.
How to measure for face fix?
For face fix or wall brackets, you should take the measurements of the wall at the height you intend to fix the pole, although if you are fitting to a frame you should measure the frame.
How to measure the depth of a bay?
Then measure at 90 degrees from the string at three points to find the depth of the bay, give us the measurements and we’ll do the rest.
What do you use to write measurements?
A pen or pencil, and something to write the measurements on. It might help to call the numbers out and have someone else write them down.
Can you measure a window sill to allow curtains to hang past the sill?
You can measure the window sill, ensuring the track will allow the curtains to hang past the sill. Or you can measure an existing track.
Can you measure from the first and last angles?
You can also measure from the first and last angles to each diagonal corner (the blue lines, above). This isn’t strictly necessary, but allows us to double check the other measurements so you can be sure everything will be spot on.
What is the difference between a bow and bay window?
That’s because bow windows usually consist of a single or a few curved windows, while bay windows are actually a few or more windows placed next to each other in a curved shape. That makes making measurements for both very unique.
Do windows need to be replaced?
However, even these windows need to be replaced at some point. Depending on the quality of the windows, the extremeness of the weather, and more, windows will lose their toughness and become damaged or broken.
What tool do you use to measure angles?
We have a handy free tool that can be used to measure the angles with ease: a protractor . All you have to do is print it off from your computer and take a look at the following video.
How many pieces of protractor are there?
Once you’ve downloaded and printed the protractor (which can be found here ), the next step is to cut out the sections. There are four pieces – the top two are for measuring internal angles (inside the bay), which the bottom two are for measuring external angles (where the bay meets to main wall of the room).
How many pieces are there in a bay?
There are four pieces – the top two are for measuring internal angles (inside the bay), which the bottom two are for measuring external angles (where the bay meets to main wall of the room). In the following diagram, A and D are external angles, which B and C are internal.
Can you order custom curtain poles for bay windows?
Our products are all great value for money, and you can order a custom curtain pole with ease using our online store.
How to measure the width of a trimmer?
Measure the large opening between the inside faces of the trimmers at the bottom, middle and across the top of the opening. Write the shortest measurement on a note pad and label it "Front width." Measure the opening from the surface of the sill to the underside of the header that runs across the top of the opening. Note the measurement as "Front height."
How to measure window size for bay window?
Identify the window at the right side of the bay, as if standing inside the room. Use marking paint and spray the letter "R" on the sill. Check the trimmers as before. Measure the width of the opening at the bottom, middle and top and note the narrow measurement with a label "Right width." Measure the height of the opening and note it as "Right height."
What is William Machin's hobbies?
His hobbies include horses, motorcycles, road racing and sport fishing.
Do you need to measure the openings for a bay window?
Retrofitting new bay windows or before installing windows in a new bay window requires measuring the openings. Typical bay windows have a large window at the front and narrow windows at the returns on each side. Whether the planned windows have wood or vinyl sashes, correctly measuring the openings ensures the windows arrive on site ready to install. As a do-it-yourself homeowner, you can save a portion of the costs by measuring the openings using a procedure used by professional installers.
Who should provide measurements for window installation?
Provide the measurements to the contractor or window manufacturer. Clearly specify that the measurements are precise and do not account for any necessary clearance or flashing when installing the windows.
What is a bow window?
In a bow window, three walls or panes set at angles project out of a room.
What are the angles of a bow window?
Some common angles for bow and bay windows include 90, 130 and 150 degrees.
How wide is a central pane?
Measure the width of the central pane. For instance, this pane may measure 25 inches.
How many inches is 24 x 2?
Divide this answer by 2: 24 ÷ 2 = 12 inches.
What is 90 + 40.6?
Add this answer to 90: 90 + 40.6 = 130.6, or just over 130. The bow windows are set at this angle.
Who is Ryan Menezes?
Ryan Menezes is a professional writer and blogger. He has a Bachelor of Science in journalism from Boston University and has written for the American Civil Liberties Union, the marketing firm InSegment and the project management service Assembla. He is also a member of Mensa and the American Parliamentary Debate Association.
