Guide 1 of 4 · Measure

How to measure your glass for window film

Grab a tape measure. Five short steps, then type your sizes below: you will know your tier, your price and what to type on Amazon before you open it. For several panes and a total, use the cost calculator.

  1. Glass, not frame
  2. Longest side
  3. Two pieces
  4. Circles
  5. French doors
  6. Your price
  7. Order card

You need

  • A tape measure that reads inches
  • Pen and paper, or this page open
  • Each pane, measured on its own

1Step one

Measure the glass, not the frame

Measure the visible glass of the pane, in inches. Leave out the frame around it: the film is cut to the glass.

A window. An orange dashed line across the outer frame is marked not the frame. A blue tape measure slides along the edge of the glass, marked glass only. ✗ Not the frame ✓ Glass only Measure the visible glass, in inches

2Step two

Width × height: the longest side picks the tier

Measure the width and the height. Your longest side picks the price tier (Step 1 on Amazon): a 21.25 × 46.75 in pane is the 48 inch tier. Then you type your exact width × height in Step 2.

Longer than 96 in: please message us before ordering.

A pane 21.25 inches wide and 46.75 inches high. The 46.75 inch side lights up as the longest side, and a marker slides along the tier ruler from 12 to 96 and stops on the 48 inch tier. 21.25 in 46.75 in longest side Step 1 tier, by longest side (in) 1224364860728496 21.25 × 46.75 in → 48 in tier

3Step three

Over 46 in on the shorter side: two pieces

The film comes off a 46 inch roll, so one piece covers up to 46 in on the shorter side (46 × 80 in is one piece). If your shorter side is over 46 in, we make it in two pieces at no extra charge (47 × 80 in is two pieces).

You pick the seam in Step 3 on Amazon: horizontal (pieces top and bottom) or vertical (pieces side by side).

A wide pane whose shorter side counts up from 40 to 47 inches. Past 46 inches a dashed seam appears and the pane becomes two pieces; the seam can be horizontal or vertical. short 12 12 Shorter side: 40 in One piece (46 in or less) Over 46 in: two pieces, no extra charge

4Step four

Circles: use the diameter

For a round pane, pick the tier for the diameter, then write “circle” and the diameter in the size box. Rounded corners or an odd shape? Order the rectangle that covers it and trim the corners while installing.

A round pane with its diameter drawn across: pick the tier for the diameter. Diameter = the tier to pick Write “circle” + the diameter

5Step five

French doors: each pane on its own

Measure each pane of a French door on its own. One piece covers one pane. Which listing, and how many to order, depends on the pane size:

Which listing for French-door panes?

Tick “French-door pane” in the price box below to compare. Amazon shows the final price at checkout.

A French door with ten glass panes. The panes light up one after another: each pane is measured on its own.
Try your size

Price one pane here

Type one pane’s glass size. You get the tier, the price for each film and whether it comes in one piece or two. Pricing several panes? The cost calculator explains the tiers and adds them up.

On the custom listings the price is the same for frosted and rainbow. French-door panes have their own prices; tick “French-door pane”. Amazon shows the final price at checkout.

Before you buy

Frosted film blurs the view by day and at night, but at night with the lights on inside, someone close to the glass can show as a soft silhouette.

Rainbows show in direct sun only.

Neither film holds on heavily textured or pebbled glass.

Type 21 1/4 or 21.25. Glass only, not the frame. Circle: enter the diameter in both boxes.

Order card

Copy, paste, done

Amazon can’t take a ready-made order from us, so this card writes each value exactly the way Amazon’s Customize form asks for it. Add every pane, then copy each value into the same box on the product page.

Your card stays on this device, so the ordering guide can replay it with your numbers.

Fill in the Customize form once for each different size. Several panes of the same size: one item, with the cart quantity set to the number of panes.

French-door pane? Tick it on that pane: the card then picks the 10-pack or the French Door listing where it fits, and asks how many panes are that size. See step five.

Your Amazon order card

Film

Film: Frosted, low tack

Next

Next: price it

See how the tiers work, what two pieces mean and what all your panes add up to.