Learning how to measure Bahama shutters is the first and most important step in ordering and installing this classic tropical window treatment. With just a few basic tools—a steel tape measure, ladder, pencil, and paper—you can complete the process in about 15 minutes per window. Accurate measurements ensure your Bahama shutters fit properly and operate smoothly once installed.
Also called Bermuda shutters, these top-hinged exterior shutters extend outward from the home to provide shade, ventilation, and privacy. Adjustable support arms hold the shutters open at your preferred angle, allowing you to control light and airflow. When closed, Bahama shutters deliver security and complete window coverage.
Bahama Shutter Measurements
This measuring guide will show you exactly how to measure Bahama shutters for both inside-mount and outside-mount installations. You’ll learn how to record window width and height, account for hinges and support arms, and determine whether wood or PVC Bahama shutters are the best fit for your project. Because windows that appear identical often vary in size, following these steps prevents costly mistakes and ensures a professional installation of outdoor Bermuda shutters.
Steps for Measuring for Bermuda Shutters
Use the detailed instructions and the measuring video below as your complete Bahama shutter measuring guide. With the right preparation, you’ll be ready to order shutters that not only look beautiful but also function perfectly for years to come.
How to Measure for Bahama Shutters
Step 1: Inspect the windows
Observe and make note of any obstructions in front of the window that may prevent the proper installation and operation of Bahama shutters (trees, fence posts, etc.). Also, check the window frame for wood rot or decay that can be repaired in advance of installation.
Step 2: Identify hinge mounting surface
A Bahama shutter mounts to the top of the shutter and just above the window opening. A single specialty Bahama hinge is the fulcrum that spans the full width of the shutter, allowing it to open. For most windows, the hinge requires at least a 1.1875-inch-tall vertical flat surface with enough structural support to allow screws to hold just above the opening. This is referenced as an outside mount, and the Bahama shutter will hang in front of the window.
The standard Bahama hinge is a total of 2.375” deep. From the back of the hinge to the front of the shutter is 1.5”.
Standard Hinge for Wood Shutters: Wood shutters are 1.5” thick, leaving no clearance behind the shutter.
Standard Hinge for PVC Shutters: PVC shutters are 1.25”, leaving 0.25” clearance.
Deep Hinge for Wood Shutters: Provides additional depth, giving 0.875” margin for wood shutters.
Deep Hinge for PVC Shutters: The deep hinge gives a clearance of 1.125” for PVC shutters.
Flat Top Hinge: Deep windows that can accommodate the shutter to nest inside the opening can utilize this hinge that screws to the header.
Step 3: Measure Window Width
Outside Mount Measure so the Bahama shutter will overlap the window opening by at least 1-2” on either side.
Inside Mount Measure from the inside left to the inside right of the window opening. Deduct 0.25-0.5” for clearance if planning for the shutter to nest inside the opening.
Step 4: Bahama Shutter Vertical Sub-Stiles
Vertical sub-stiles divide a Bahama shutter into multiple horizontal louver areas for added stability. They permit Bahama shutters to extend the full width of the window. Depending on the material, Bermuda shutters will likely require at least one vertical sub-stile as indicated on the ordering page.
Outside Mount Measure the height so the shutter overlaps the opening by at least 1-2” on both the top and bottom. Account for the position of the planned location of the top hinge and potential interference of a lower window sill.
Inside Mount Measure from the inside top of the window opening to the inside bottom. Deduct 0.25-0.5” for clearance so the shutter can nest inside the opening. Evaluate the window header for a firm mounting surface.
Awning Style It is common to install Bahama shutters to project over just the top portion of the window. Some believe the optimum “awning style height” of a Bahama shutter is 2/3 of the window. In truth, the best height depends on the reason for installation. Functionality and appearance both factor into the determination. We suggest cutting a piece of cardboard to the approximate size and holding it over the window at the desired angle to simulate the look. The same ratio will likely be used for all windows on the property.
A divider rail is a horizontal bar, much like the top rail, that creates top and bottom louver areas within the exterior shutter. A divider rail is optional for Bahama shutters and is infrequently used because it can interrupt sight lines.
A divider rail can be centered by default or positioned at a custom location. For two divider rails, note the location of each from the bottom of the shutter to the center of each.
Divider Rail (Optional): Measure from the bottom of the shutter to the desired center of the divider rail. The actual location of the divider rail may be slightly higher or lower than requested. The number of louvers will dictate the final placement.
Step 7: Consider Support Arms
Support arms are used to hold Bahama shutters in an open position. The support arms offered by ShutterLand are adjustable to more easily establish the best angle.
Available Support Arm Lengths:
12″ Arms: The 12″ arms extend to a maximum length of 20″ (including the brackets).
18″ Arms: The 18″ arms extend to a maximum length of 32″ (including the brackets).
24″ Arms: The 24″ arms extend to a maximum length of 44″ (including the brackets).
To figure the support arm length needed, enter the desired shutter height. The length calculated is based on the assumption that the support arm will connect to the base of the window and the bottom of the Bahama shutter.
If the arm is attached higher on both the wall and the shutter, the length will be shorter.
Step 8: Bahama Shutter Material
ShutterLand offers Bahama shutters in three durable materials: aluminum, wood, and PVC.
Aluminum – Our aluminum hurricaneBahama shutters provide maximum storm protection and require a different set of measuring instructions. This material is the best choice for coastal regions where impact resistance is a priority.
Wood – A traditional option, wood Bahama shutters remain a popular choice for most applications. They are lightweight, cost-effective, and have been installed on American homes for decades.
PVC – Designed to replicate the classic look of wood, PVC Bahama shutters offer exceptional longevity and low maintenance. Their remarkable durability makes them a smart investment for long-term investment.
Still unsure? Visit the Wood vs. PVC Shutters comparison page for more comprehensive information that will help explore the differences in more detail.
After recording all measurements and specifications, proceed to place your order online.
Bahama Shutter Production Time
Wood shutters have a current estimated production time of 5-7 weeks, while PVC shutters are usually completed within 5-7 weeks. Timeframes cannot be guaranteed, but ShutterLand does work diligently to manufacture high-quality shutters within the time quoted. After the manufacturing of the shutters is complete, they are packaged and shipped for delivery within about a week.
Prepare for Bahama Shutter Installation
ShutterLand provides comprehensive installation instructions for Bahama shutters, including both written and video guides. Reviewing these resources in advance will help you prepare for a smooth installation once your shutters arrive.
