: The easiest "ready-to-hang" option. You provide exact width, height, and frame thickness, and the screen arrives fully assembled. Available from retailers like Metro Screenworks and Amazon

To buy replacement window screens, you can either purchase made to your specific dimensions or DIY kits to build them yourself . For the most accurate fit, it is recommended to measure your existing screens to the nearest 1/16th of an inch. Step 1: Choose Your Buying Method

: These contain aluminum frame pieces, mesh, spline (the rubber cord), and corners. You cut the frame to size yourself. Options include the Prime-Line Screen Frame Kit Go to product viewer dialog for this item. at HD Supply or various kits at The Home Depot .

: If the frame is still good, you only need a roll of mesh and new spline. Step 2: Take Precise Measurements

Measure For Window Screens * Step 1: Measure the Shortest Side First, you will want to measure your window screen's shortest side. Metro Screenworks·Metro Screenworks Amazon.com: Window Screen Pre-Framed, Ready to Hang

Precision is critical because screens that are off by even 1/8 inch may not fit. Measure For Window Screens