Measuring Recess Depth for Plantation Shutters
Recess depth tells you how much clear space is available for an inside-mounted shutter.
In this article
- Find the front reference point
- Measure to the first obstruction
- Check several locations
- Operate the window
Before you measure: check usable recess depth
For an inside mount, start by checking the shallowest clear depth in the recess. As a general guide, aim for approximately 70 mm of unobstructed space, measured only to the first handle, winder, lock, key, flyscreen or other fitting that projects into the shutter area.
If you have around 70 mm or more of clear usable depth, you can normally continue with the inside-mount measuring steps.
Less than 70 mm does not automatically rule out an inside mount. Frame choice and obstruction position can change what is possible. Check Handles, Winders & Other Shutter Obstructions before finalising the mount.
Set the Front Reference Plane
Use the front face of the recess as the reference plane and measure inward toward the window, keeping that same plane around the entire opening.
Common Window Obstructions
Typical obstructions include security boxes, locks, winders and handles.
Find the First Obstruction
Stop the depth measurement at the first handle, lock, flyscreen, mullion or moving window component that could interfere with the shutter. That point defines the usable depth.
Check Depth in Several Places
Check the depth near the top, centre and bottom on both sides of the opening. Use the shallowest clear reading when deciding whether the frame will fit.
Test the Window Operation
Operate the sash, handle and winder while checking the recess. Any moving component that enters the proposed shutter space must be treated as an obstruction.
Before ordering: if usable recess depth is below approximately 70 mm, or if handles, winders, locks or flyscreens enter the shutter space, check Handles, Winders & Other Shutter Obstructions before finalising your inside-mount dimensions.
Ready to Enter the Shutter Order?
Once the measurements and layout are confirmed, enter them on the plantation-shutter product page.