Thermal Grommet Curtains, 1 Panels 100x84 in, White

Sliding doors are usually curtained with two panels and a gap down the middle that lets in a stripe of light all afternoon. A hundred inches of fabric in one piece removes the gap: twelve grommets along the top, 1.6 inches each, carry the panel across a standard slider or a wide picture window and let it push to one side in a single movement when the door is in use.

The figure to know is 50 percent, which is how much sunlight and UV this white panel stops. That makes it a filter, not a blackout. The thermal half of the job is the stronger one: heavy polyester insulates the glass against summer heat and winter chill, and a slider is where a room loses the most of both. It also muffles noise and blocks the view in while leaving the room bright. Seaming and trimmed threads keep the edges flat down a panel this long.