Our next post…
Exterior Shutters for Historic Homes
exterior shutters for historic valley forge

Do you need help with finding the right design for your interior or exterior shutters or even your interior doors?  We can help.

Subscribe
Browse Older Posts by Category
        ShareThis

Posts Tagged ‘Exterior Shutter Hardware’

Bahama shutters

Bahama shutters

What exactly are Bahama Shutters?
Simply put, Bahama Shutters, also referred to as Bermuda Shutters, are shutters that are mounted at the top and propped out like an awning over a window. While mainly an exterior style of shutter they are some times used inside to give a more tropical feel to a room.  Bahama Shutter Hardware consist of hinges at the top and an arm to prop the shutter open.

Hinges for Bahama Shutters
There are 2 main types of hinges for Bahama Shutters, both of which are mounted at the top. There are continuous hinges (figure 1) running the width of the shutter and single knuckle hinges (figure 2) similar to a door hinge. The continuous hinges are stronger and more often used where the shutters will be fully functioning. The extruded continuous hinges we offer are the same ones supplied with Aluminum Hurricane Shutters. The single knuckle hinges can also be used on functioning exterior Bahama Shutters but are best situated where the shutters are propped open permanently like an awning.

Extruded Hinges for Bahamas Shutters

figure 1 - Extruded Hinges for Bahamas Shutters

Knuckle Hinges for Bahama Shutters

figure 2 - Knuckle Hinges for Bahama Shutters

Arms for Bahama Shutters
There are also 2 types of arms that are used to prop Bahama Shutters open. You have adjustable arms (figure 3) and stationary arms (figure 4). The adjustable arms are telescoping so that you can adjust the angle at which you prop open your Bahama Shutters. This is very helpful in getting your exterior shutters positioned just right so that you have a view to the outside while blocking the sun and afternoon showers. The stationary arms are used usually to prop open Bahama Shutters like an awning. These come in a few different lengths and are less expensive than the adjustable arms.

Keep in mind that depending on how wide your Bahama Shutters are you may need more than 2 arms per shutter.

Adjustable Arms on Bahama Shutters

figure 3 - Adjustable Arms on Bahama Shutters

Stationary Arms on Bahama Shutters

figure 4 - Stationary Arms on Bahama Shutters

What do I need if I am using them on Hurricane Shutters?
If you are using your Bahama Shutters for hurricane protection then I would strongly recommend our continuous hinges. They are not only much stronger than a knuckle hinges but are fastened more securely to your home to insure the best protection. As far as the arms go, since both are removed during a hurricane there is no real benefit one way or the other.

If you are not sure which type of hardware for Bahama shutters is best for you please ask us. Give us a call, send us an email or start an online chat. We are happy to help

Click here to order your Bahama Shutters Hardware.

Kestrel Shutters & Doors was recommended for our interior and exterior shutters in a recent article on the Martha Stewart website. You can read the article here – Inspiration: Shutters – Home Design with Kevin Sharkey.

Thank you Mr Sharkey!

The most common shutter dog used on exterior shutters is the “S” scroll.

The scroll shape, a volute, has been used in architecture for thousands of years. Found on the capitals of Ionic and Corinthian columns, scrolls are a comforting contour that nature creates all by herself in fiddlehead ferns, snails, seashells, and in flowers as the petals unfurl into bloom. Maybe it’s this natural subtle sliding (twisting) form that prompted someone long ago to carve them into architectural features including stair rails and in string instruments such as the top of a violin and cello.

Scroll, or “S” curve, shutter dogs have been made for over two hundred years. Hot Iron shaped in two spirals, one reversed mirroring another forming the common “S” design, was an easy to make item for a blacksmith. However, I do understand that it used to be The Blacksmiths Test of readiness since it was only easy for a good blacksmith to make the repetitive “S” shapes that would match.

Eventually casting and stamping steel replaced the Old World Blacksmith’s hand forged “S” curve leading to the number of variations available today.

We sell a half a dozen “off the shelf” cast, stamped steel and cut steel type. While these shutter dogs all share the common “S” shape, the differences in each are in appearance and material :

s-curve shutter dogs

Below are close-up pictures of each ot the shutter dogs shown above, listed from left to right. All of the shutter dogs below except the first one ( HE7-201 ) are fully functional. The plastic shutter dog is the only design that is for decorative uses only.

plastic s-curved shutter dogs
Item Code : HE7-201

Material : Exterior Grade Plastic
Size : 2.1/2″ x 6.7/8″
Price : $9.99 / pair

Made In Pennsylvania, USA

cast iron s-curve shutter dogs with hammered edges
Item Code : HE3-254

Material : Cast Iron w/ zinc phosphate and black powder coat
Size : 2.3/4″ x 6.3/4″
Price : $18 / pair

Made In Taiwan, ROC

cast iron s-curved shutter dogs with smooth beveled edges
Item Code : HE3-257

Material : Cast Iron w/ zinc phosphate and black powder coat
Size : 2.5/8″ x 6.3/4″
Price : $18 / pair

Made In Taiwan, ROC

stainless steel s-curve shutter dogs
Item Code : HE6-409

Material : 304 grade Stainless Steel w/ black powder coat
Size : 2.1/2″ x 6.7/8″
Price : $34 / pair

Made In China

stamped steel s-curve shutter dogs
Item Code : HE2-76

Material : 3/16″ Steel w/ zinc phosphate and black powder coat
Size : 2.1/2″ x 6.7/8″
Price : $20 / pair

Made In Pennsylvania, USA

stainless steel floral s-curve shutter dogs
Item Code : HE1-851

Material : 304 grade Stainless Steel w/ black powder coat
Size : 2.1/2″ x 7″
Price : $22 / pair

Made In Pennsylvania, USA

If an S-design is not for your home’s style or even your personal preference we offer many other shutter dog designs to choose from – Thirty-seven shutter dogs in all !


A naturally beautiful and renewable choice- Wood shutters and doors by

Kestrel Shutters & Doors, Inc.   www.DIYShutters.com   1-800-494-4321 / sales@diyshutters.com

A hoKestrel Exterior Shutter Doguse with functional wood shutters but lacking shutter dogs is like a kite without a string. Without this type of exterior hardware a louvered or panelled shutter will swing freely banging against the outside wall and window.  There is also the possibility of the shutter taking flight with a sudden gust of wind!  To avoid all of this from happening a home needs a good dog, that is, a shutter dog.

“Dog” is an Old English word that means “a simple mechanical fastener”, a “Shutter-Dog” is a simple mechanism to tieback a shutter.

On many old farm houses and even on newer homes you just might find exterior shutter dogs positioned differently then the original intended design.  Just by looking at the shutter dogs pivot point it is easy to see that one side is larger or longer then the other.  The heavier end is designed to hang downward. *The Federal Shell Long-Arm style shutter dog in the picture below is up-side-down.



We often will see S-Curve shutter dogs intalled upside down.  One curve is definitely longer then the other which will naturally want to “fall” to the bottom because it is heavier. *The S-curve shutter dogs in this picture to the right are installed correctly.

How do most bottom mount shutter dogs work? The top end of the shutter dog comes in contact with the bottom of the shutter panel as a stop keeping the panel leaf held against the wall.  By manually rotating the shutter dog up to 90 degrees the stop tips over and out of the way allowing the shutter to pass by in order to open or close.  Once the dog is released it is designed to swing back into its balanced position on its own or with a nudge.  It’s a neat and simple design that extends to being a very decorative element found in a variety of cast and wrought iron patterns.

Installed upside-down, right-side up, and even sideways a Shutter Dog will still satisfy its purpose just as well by making an exterior shutter sit and stay.  Good Dog.

>Shop Now for Shutter Dogs

Shutter Dog TM - Original artwork by author

A naturally beautiful and renewable choice – Wood shutters and doors by

Kestrel Shutters & Doors, Inc. www.DIYShutters.com 1-800-494-4321 / sales@diyshutters.com

raised panel exterior shutters

Finding the correct offset for exterior shutter hardware certainly can be daunting. But, with a little practice you’ll be well on your way to hanging your shutters with an offset that’s just right!

What is Hinge Offset and why is it needed?

Hinge Offset is the counterbalance needed for a shutter or door to easily swing open and close, clearing any obstacles such as a deep fitted window frame or trim mouldings. With a larger hinge offset a larger swing (also referred to as “throw”) is created making the shutter protrude, or kick out, further away from the pivot point of the hinge. Knowing which hinge offset you will need is just a matter of finding the amount of throw needed.

Hardware Basics

Hinges are comprised of two parts. view of pintles and straps for exterior shutter hinges

Exterior strap hinges and the “L” type straps (also called “New York style hinges”) shown here on the right consist of a strap and a pintle. In this picture the pintle is on the left and the strap is on the right. The strap mounts to the shutter’s back face and the pintle mounts to the building. Most, if not all shutter and door hinges, are made to be able to separated for installation, as well as general maintenance, hence the term “Lift off Hinge or Loose Pin Hinge”.

Measuring Offsets for Plate Mount Strap Type Hinges

example of pintle offset

Pintle offset is measured from the base, to the center of the pintle, or pin. When measuring pintle offset sometimes the plate will be included and sometimes not. The measurement will be close enough to measure either way. In this picture I did not incude measuring the plate portion of the pintle that the tape measure is seated on. See how the measurement is one and a half inches ( 1-1/2″ ) to the center of this pintle pin shown to the right?

Measuring the offset on the strap is similar to measuring the pintle offset. Just measure to the center of the knuckle, the hinge joint, less the strap thickness like I did in this picture below.

example of strap hinge offset

Just remember that you must measure the strap perpendicular to the portion that is mounted on the shutter face and not the angle as I am in the picture above.

Typically the strap offset is matched with the pintle offset. From closest to furthest in the picture shown below are half inch (1/2″), one and a half (1-1/2″) and three and a quarter (3-1/4″) offsets.

offsets for exterior shutter hinges

Offsets for Edge Mortise Types

Edge Mortise hinges shown in the picture to the right are also known as butt hinges. Butt hinges consist of two sections or leaves. The pivot pin is located on one of the leaf knuckles. They can be an “H” style (also called a Parliament hinge) as shown or a plain squared version that is our HE1-401 style. Click the picture below for both examples.

H style exterior shutter hinge separated

For another example of an edge mortise hinge just take a look at your home’s entrance door. See how the hinge leaves are flush with the surface? This is known as hinges that are mortised in. One side of the hinge is mortised flush on the edge of the door and the other half with the pin is mortised flush into the door frame also known as a jamb. It is the same idea for a shutter.

Offsets are measured on an edge mortised butt hinge by taking the distance from the outer edge of the hinge leaf to the center of the pin. You can also just divide the full width of the hinge, both leaves open on a flat surface, and divide by two.

measuring hinge offset on exterior butt hinges

This hinge shown is referenced as a jamb leaf pintle. It’s the same idea for mounting as an edge mortise hinge, mounts to the jamb. The leaf shown has an offset of 2-1/2″ from the outer edge. Sometimes you’ll see offset measured from the inside leaf to the center of the pin. In this picture you can see that would be about 1″ from the inside leaf edge to the center of the pin. If you are going to use this type hinge or even the edge mortise types you need to make sure that the jamb is wide enough for the leaf plate to be securely screwed down.

Whether it is a strap hinge or a butt hinge the pin portion is mounted to the frame. In some cases this will be reversed for strap shutter or gate hardware if the pin is made to be on the straps knuckle. This feature is true of many hinges found on Old Philadelphia Federal Shutters. Regardless of where the pin is located the offset rules will still apply.

How to find your offset

exterior shutter strap hinge separated

Minimum hinge throw required

The distance from where the hinge will mount to the house to front face of the trim or casing that protrudes out the furthest from your home’s façade is the minimum throw required. This is shown in figure 2 below. If there is no trim or casing, as in many brick and stone homes as shown here to the right and at the beginning of this article, then the minimum hinge throw required will be the distance from where the pintle mounts on the frame to the façade.

exterior plantation shutters

Using what you now know about hinge offsets take a look at this picture-

Do you see the pintle’s large offset, the projection out from the window frame? Along with the matched offset on the “L” strap hinge the shutter now has adequate “throw” kicking it far enough away from the exterior wall. This is the key to knowing which offset to use- just find your throw.


Shutter closed over openingHinge offset for exterior shutter hinges

Fig. 1

Shutter when open against the exterior façade , minimum hinge throw shown.diagram of hinge offset with the hinge in the open position

Fig. 2

Shutter when open against the exterior façade with ventilation space detailed.Minimum exterior shutter hinge throw required

Fig. 3

A ½” – 1-1/2” ventilation space is recommended between façade and shutter.

Along with the minimum throw you’ll need to add enough offset to include an area for a ventilation space, a gap, behind the shutters when they are open and tied back against the wall with shutter dogs. This will help the wood ventilate so they do not retain moisture. It will also help ventilate the house wall too. There is no rule for how much ventilation space is required but it typically ranges from about a half to one and a half inches when the shutters are held open with tiebacks.

The following charts show some common offsets that we offer and their throw.

Table A – Use this chart for when the pintle offset equals the strap offset:

Hinge Offset Hinge Throw Minimum Hinge Throw Required
1/2″ 1″ 0″ to 1/2″
1.1/2″ 3″ 0″ to 2.1/2″
2.1/4″ 4.1/2″ 0″ to 4″
3.1/4″ 6.1/2″ 0″ to 6″

Table B

Some of the hinges that we sell can have split offsets. You might need a large pintle projection from the house and a smaller offset on the shutter hinge. Use this chart for when the pintle offset does not equal the strap offset

Pintle Offset Strap Offset Hinge Throw Minimum Hinge Throw Required
1″ 0″ 1″ 0″ to 1/2″
1″ 1″ 2″ 0″ to 1.1/2″
1″ 2″ 3″ 0″ to 2.1/2″
2″ 0″ 2″ 0″ to 1.1/2″
2″ 1″ 3″ 0″ to 1.1/2″
2″ 2″ 4″ 0″ to 2.1/2″

Every window can be different…

When measuring for your hinge offset do not assume that all of your windows will be the same. There can be variations in the way the windows were installed and your exterior walls were built. This is especially the case in older homes and homes with additions. Taking the few extra minutes per window to make sure you have the right offset will save you much time and money in the end.

Are you still not sure which shutter hinge to use?

Below are a some helpful paper cut out worksheets that you can print out. These templates can be helpful to place where your new shutter hardware will be installed to make sure that you will have adequate offset.

Your printer defaults should be fine for these worksheets to print to scale but if the measurements are incorrect just make sure that your printer is set to a a one to one (1:1) ratio in order for the cut-out templates to work.

grey scissors

Click & Print:

click here for pintle templates for exterior shutter hinges

click here for strap hinge templates for exterior shutter hinges

Kestrel Shutters & Doors

A naturally beautiful and renewable choice – Wood shutters and doors by

Kestrel Shutters & Doors, Inc. www.DIYShutters.com 1-800-494-4321 / sales@diyshutters.com


Now here’s a good deal for cast iron shutter hardware. We have star and flower pattern sill mount shutter dogs that only need a little bit of finishing touch up or you might just want to use them as is for antiquity.cast iron shutter dogs with sill mounts

An excellent buy at $22.50 a pair! 

Update for December 2009-  Flowers are now sold out but we do have the “arms” that can be fitted with the flower design or most any other HE2 series style at less cost then a new long-arm set.

“Long Arm” Shutter Dogs mount to the exterior window sill apron and they work especially well for a home that has a stone or brick facade. Click either picture to see these shutter holdbacks installed on a home.

cast iton shutter dogs with sill mounts

Made in USA

A limited supply is available. Order now before they are all gone.

Season’s Greetings

from Kestrel Shutters & Doors

Kestrel Shutters & Doors

A naturally beautiful and renewable choice – Wood shutters and doors by

Kestrel Shutters & Doors, Inc. www.DIYShutters.com 1-800-494-4321 / sales@diyshutters.com



For years we have offered a variety of standard S-curve shape shutter dogs, a.k.a. shutter tiebacks, in several materials including an imported cast iron variety.  This very popular cast iron version has a scalloped edge.  Now, we have a cast iron scroll with a smooth edge.  Simple but very elegant. Just $18.00 a pair! Item: HE3-257

S-curve Shutter Dog with Smooth Edges

Kestrel Shutters & Doors

A naturally beautiful and renewable choice – Wood shutters and doors by

Kestrel Shutters & Doors, Inc. www.DIYShutters.com 1-800-494-4321 / sales@diyshutters.com


Subscribe