Mirrors for parking garages
A parking garage needs a convex mirror at every point where a driver has to commit to a turn without seeing what is around it: ramp turns, the exit onto the street, aisle corners at colum…
Rectangular Convex Mirror
A rectangular (roundtangular) convex mirror brings blind corners into view where ceiling height or wall space makes a round mirror difficult to fit. Choose an indoor hardboard-backed model for dry interiors, or an outdoor-rated model with plastic or galvanized steel backing for exposed or humid locations.
A low-clearance convex mirror for tight spaces
The flatter top fits close beneath low ceilings in offices and parking garages. Check mirror height, bracket projection and vehicle clearance before choosing a size.
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Rectangular Convex Mirrors
Rectangular Convex Mirror
A rectangular (roundtangular) convex mirror brings blind corners into view where ceiling height or wall space makes a round mirror difficult to fit. Choose an indoor hardboard-backed model for dry interiors, or an outdoor-rated model with plastic or galvanized steel backing for exposed or humid locations.
Low clearance
Check installed height
Indoor / Outdoor
Depends on backing
Rectangular
Rounded-edge profile
Choosing an oblong aisle mirror for a low ceiling
1
Measure height and width
Measure the space below the ceiling, beams and pipes. Compare both listed rectangular dimensions and leave room for the bracket and aiming angle. Do not treat the width of an oblong mirror as a round mirror diameter.
2
Check the sightline
Identify where the observer stands or drives and the hidden approach they need to see. Send those distances and a site photo for help sizing a rectangular mirror.
3
Match backing to exposure
Hardboard is for dry interiors. Choose the outdoor-rated rectangular family with plastic or galvanized steel backing for exposed or very humid locations.
4
Keep the travel path clear
Allow for the mirror and bracket below the ceiling. Verify pedestrian, equipment and vehicle clearance after aiming; the photo illustrates fit rather than a prescribed installation height.
Shape selection
Rectangular mirror footprint or round mirror shape?
Round convex mirrors
Compare the available mounting space
Shape: A circular outline uses vertical and horizontal wall space.
Selection: Consider a round model where the mounting area accommodates its full diameter.
Check: Actual model dimensions, viewing position and bracket clearance.
Compare
Rectangular convex mirrors
Consider the flatter top and bottom
Shape: A rounded rectangular outline can suit limited height above an aisle or corridor.
Selection: Check height and width together; shape alone does not establish viewing distance or a wider field of view.
Check: Backing rating, bracket projection and the clearance required by people or vehicles.
Mounting Options for Rectangular Convex Mirrors
Rectangular (roundtangular) mirrors use the same bracket hardware as round convex mirrors. The photos below show round convex mirrors to illustrate the mounting options; the pictured mirror shapes are not the rectangular products sold on this page. Choose the bracket style specified for your rectangular mirror, mounting surface and size.
Z-Bracket Mount
For compatible smaller rectangular mirrors in dry indoor locations, a Z-bracket provides a fixed wall or column mounting point. Check the selected model’s supplied bracket and allow space to aim the mirror below a low ceiling.
Single Telescoping Mount
A single telescoping arm allows angle and stand-off adjustment on compatible rectangular models. Check the arm configuration offered for the selected size and the clearance needed to keep the mirror out of the travel path.
Double Telescoping Mount
Double telescoping arms support compatible larger rectangular mirrors. Outdoor wind exposure and the selected size affect mounting requirements; confirm the correct configuration before ordering rather than assuming any bracket fits every mirror.
Double Swivel Mount
Use the linked installation guide to check double-swivel hardware compatibility and adjustment. An offset aisle corner may need horizontal and vertical aiming; verify the mount offered for your rectangular model and allow room for that adjustment.
Rectangular Mirror Backing Types
The rectangular shape does not make a mirror indoor-only or weather-rated. Select the backing and installation rating that match the location.
Hardboard Backing
Choose the hardboard-backed rectangular model for dry indoor corridors, offices and warehouse aisles. A roof alone does not keep an open parking garage dry.
- Dry indoor use
- Keep away from rain and persistent humidity
- Check the selected model’s dimensions and mounting options
Read the full backing guide
Heavy-Duty Plastic (HDPE) Backing
Choose an outdoor-rated rectangular model with plastic backing where moisture or weather exposure rules out hardboard. Confirm the backing offered for your chosen size.
- Outdoor-rated model required
- Suited to exposed or humid locations
- Confirm size and mounting configuration
Read the full backing guide
Galvanized Steel Backing
Galvanized steel backing is an option on the outdoor-rated rectangular product family. Compare available sizes, weight and mounting requirements before choosing it for a garage or loading area.
- Available on the outdoor product family
- Confirm the selected variation
- Check mounting requirements and wind exposure
Read the full backing guide
Unsure whether round or rectangular is better?
Send the mounting location and viewing distance to NSM. The team can help confirm whether the rectangular format, a round convex mirror, or another mirror family is the better fit.
Mounting surface and available width
Viewing distance and target blind spot
Indoor, protected outdoor, or exposed conditions
Guides for rectangular mirror installations
Use these guides alongside the selected rectangular model’s dimensions, backing and bracket options.
Mounting a rectangular mirror
Compare the shared bracket hardware and check the installation guide for your selected mirror.
View mounting guide
Compare lens materials
Understand acrylic and polycarbonate, then confirm the lens material actually offered for the rectangular model.
Compare materials
Rectangular mirrors near low ceilings
See how the flattened outline can fit office corridors and parking structures with restricted mounting height.
Read the low-ceiling guide
Mirrors by facility
Where rectangular convex mirror go in a real building
Each page walks one kind of facility: the blind spots, the mirror for each one, the size to order, and how it mounts.
Mirrors for convenience stores
A convenience store needs two kinds of mirror: a dome mirror or DomeVex wide-view mirror mounted where the clerk can see the whole sales floor from the register, and smaller convex mirror…