Frame Types

WHAT TYPE OF FRAME SHOULD I USE FOR MY SHUTTERS? 

Welcome to The ShuttersDept. help article on Frame types! There are a number of issues to discuss in order to decide whether you will require an L-frame or Z-frame for mounting your shutters. To make this easy, one of the first questions we’ll ask you is what type of window you have. We’ll also cover how you will be mounting your shutters – inside or outside. Finally, we will explain the difference between L and Z frames, and which is best for your window. Throughout the process of designing Shutters in our Design Centre, we will be making expert recommendations to assist along the way.

To begin with, identifying what style of window you have will help us throughout the Design process. Click here for a detailed article on identifying your window.

Inside vs Outside Mount?

There are a number of important differences between frame types, Inside and outside mounted shutters use different frames – either an L-frame or Z-frame for inside mount, and a (different) L frame for outside mount.

For any given window, the finished size of the shutters will be slightly different. As inside mounted shutters are made to fit within the window recess, they are slightly smaller than outside mounted shutters made for the same window. Outside mounted shutters need to be larger as they are mounted around the window.

Inside mount (Recess Fit) shutters sit inside the window recess and are usually fitted flush against the wall. Outside mount (Face Fit) shutters are fitted onto the wall, around the window. Both mounting options look great! Many people prefer inside mounting because the shutters don't extend into the room. Inside mounting also results in a slightly smaller shutter, saving you money.

For a detailed article on Inside vs Outside mount shutters, click here.

See below for an example of Inside vs Outside mount shutters.

Support Images L inside Z inside L outside Square Set5

Mounting

 

How do I know if I should order an inside or outside mount? 

If you have a recess with at least 70mm of unobstructed clearance (e.g. free of window winders, locks, handles etc), you will be most likely be installing an inside mount shutter. Check out our video on measuring with obstructions.

If you are unsure what type of mount you need, please upload photos to the website and we'll check it for you. Based on the details you provide in our Design Centre we’ll come up with an expert recommendation.

Still unsure if you have a recess? Click here to learn more about recess or send us an image of your window.

For a detailed article on measuring your window for shutters, click here.

 

WHAT IS A SHUTTER FRAME?

Whether you are inside or outside mounting, shutters generally need to sit inside a frame (there are some exceptions to this rule). The frame will be designed to fit the style + size of your window. Once you have mounted your frame, the shutters will hinge inside the frame.

Support Images L inside Z inside L outside Square Set

Support Images L inside Z inside L outside Square Set6

 


WHAT IS A Z-FRAME?

A Z-frame, as its name suggests, is in the shape of the letter Z. Used for inside mounting, part of the Z sits inside the window, while the other part creates a lip around the window. This ensures a clean frame around your window, avoiding any gaps around the window sill.

A Z-frame will protrude from the wall approx 9.5mm.

Z Frame2

 

How Does a Z-Frame Mount to my Window?

Z frame insideA Z-frame is 47.6mm in length. It requires 39mm to sit inside the recess of your window, and 19mm to the wall or architrave around the window.

Screen Shot 2018 02 09 at 9.55.18 am

Can I Install a Z-Frame with an Architrave?

Yes! You can install a Z-fram with an architrave, provided you are able to inside mount your shutter and have at least 19mm of flat surface on your architrave.

If you have an architrave and are unsure whether you can mount a Z-frame, please send us a photo of your window and we will provide expert advice.

Support Images Z frame with architraves

Shutters Illustration 06 Bullnose architrave


Can I install a Z-frame with a Window Sill?

You can install a Z-frame with a window sill, provided you are able to inside mount your shutter. The bottom of the frame will be specially manufactured to sit on top of their sill, rather than wrap around your window.

Corner Piece4

Can I Install a Z-frame with an Architrave and Window Sill?

You can install an inside mount Z-fram to window with an architrave and window sill, provided you can inside mount and have 19mm of flat surface on your architrave.

The bottom of your frame will be specially manufactured to sit on the windowsill, rather than wrap around the window.

Corner Piece copy

Installing Z-frame with Obstructions

When using a Z-frame, we need to be aware of obstructions that may get in the way of installing the frae. While we ask for 70mm of clearance to enable space for the shutter louvres (blades) to open fully, there are tricks for getting around obstructions on your window. 

Read our article on managing obstructions.

 

WHAT IS AN L FRAME?

An L-frame, as its name suggests is designed in the shape of the letter L. There are two types of L-frames, which can be used to inside OR outside mount yout shutter. Unlike a Z-frame. the L will sit either inside your window recess or on the border of your window architrave. An outside mount L-frame will project into the room further than and inside mount.

Corner Piece5

WHAT IS AN INSIDE MOUNT L-FRAME?

An inside mount L-frame will mount to the inside of your window recess. It can be mounted flush against the wall, or even sit back from the wall at any desired depth.

L Frame inside

How does an inside L-Frame mount to my Window?

An inside L-frame is 65mm in length, and requires at least 65mm of unobstructed clearance to fit inside the recess. You also have the option of mounting your shutter further inside the recess if your have more than 65mm of clearance.

L frame inside

Shutters Illustration 06 Inside L frame

Can I Install an L-frame with an Architrave?

Yes! You can install an L-frame to a window with an architrave, provided you are able to inside mount your shutter. If you have an architrave and are unsure whether you can inside ount an L-frame, please send us a phot of your window and we will provide expert advice.

Inside L bullnoseShutters Illustration 06 Bullnose architrave2

 

Can I Install an Inside L-frame with a Window Sill?

Yes! An L-frame will sit on top of the sill and mount inside the recess.

L squareset sill2

Can I Install an Inside L-frame with an Architrave and Window Sill? 

Yes! Provided you can inside mount, you can install an L-Frame to a window with an architrave and window sill.

Not sure if you can inside mount? Read our article on Inside vs. Outside mount here.

Inside L bullnose Sill Corner

WHAT IS AN OUTSIDE MOUNT L-FRAME?

An outside L-frame is mounted the the outside or architrave of your window, depending on the type of window. If you do not have the required clearance for an inside mount, an outside L-frame is a great alternative.

If you are outside mounting, your window will protrude from the wall. Outside mounted shutters have a projection into the room of 63.5mm.

Pieces Measurements4Angle Shot9

How does an Outside L-Frame Mount to my Window?

An outside L-frame is 63.5mm in length. It requires at least 38mm of flat surface to the outside of your window. 

Frame Depths all4

Start Designing your Shutters now!

 

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Gilad Baker
By: Gilad Baker Published: 09 Feb 2018