How to Measure for Outdoor TV Cover | Fit Every Dimension

Most outdoor TV cover mistakes trace back to one habit: trusting the diagonal screen size. That number only describes the display, so it ignores the bezel, the stand, and the cables jutting out the back. To get a cover that slips on without a wrestling match, you need the TV’s three outside dimensions measured edge to edge—then a cover that’s slightly bigger.

Here’s what to measure, the clearance to add, and the common errors that lead to a bag that’s either skin-tight or billowing.

Which Three Measurements Matter

Every outdoor TV cover is sized by width, height, and depth, and the numbers must come from the TV’s outside edges. CoverStore’s measuring guide is blunt: start at one outside edge and go to the other.

• Width. Left edge to right edge across the front, including the bezel and anything attached beyond the screen.
• Height. Bottom to top, again including the frame. For a wall-mounted unit, measure to the TV’s bottom edge—not the mount below it.
• Depth. Back to front at the deepest point, catching rear protrusions like ports and cords. Some products expect the cover to hold those connection points, so losing an inch on the back means a tight fit.

Screen size alone won’t save you. Two 55-inch TVs can have different bezel widths and stands, so their outside dimensions rarely match. The cover’s sizing table, not the diagonal, decides whether it fits.

Clearance And Mounting Details

Once you have the three numbers, add a little room. Multiple guides, including CoverStore’s, recommend a cover about 1-2 inches larger in each dimension for easier installation and a less cramped fit. That extra space also leaves room for a stand or bracket if the cover is meant to include one.

Check what the product listing excludes before ordering. Some covers are built strictly for wall-mounted TVs and explicitly say not to measure the bracket itself. Others allow covering the stand, but only by measuring it separately and confirming the cover’s dimensions still work. When in doubt, read the size chart against your exact setup.

If you’re ready to compare fitted options, our tested outdoor TV cover picks break down which designs handle wall mounts and stands.

Mistakes That Lead To A Poor Fit

The failures repeat across buyer reviews, and they all trace back to skipped measurements:

• Measuring only the visible screen, leaving out the bezel that adds real inches.
• Ignoring rear protrusions—ports, cords, and inputs push the depth beyond the panel.
• Relying on the diagonal size, which tells you nothing about the frame.
• Skipping the product’s mount guidance, then finding the cover doesn’t reach over a bracket.
• Buying a cover with zero clearance, making it hard to pull over the TV.

These errors cost you a return, or worse, a cover that flaps in the wind. Take the three measurements, add the clearance, and verify the listing.