Tim from Select Shutters and Blinds mentions that before embarking on the installation of your personally crafted window blinds, it is extremely important to ensure the accuracy of your window measurements. Plantation shutters block quite a bit of light, but only if they are installed propertly. Both the horizontal and vertical dimensions of your window frame must be accurately measured, and it is crucial to verify your measurements for their veracity. This meticulous attention to detail will avert any potential inconveniences related to ill-fitting blinds in the future, like letting to much light in.