Measuring and Installing Screens for Sliding Windows requires some thinking, most sliding windows have channels that the screens go into but then there are the exceptions, the windows without channels,
we'll talk about those in a bit, the channel windows are pretty easy once you catch on, if you happen to have the old screens you have a lot of useful information right there, measure those screens first then take your own measurements like this :
First you must measure for the THICKNESS of the screen that is to be used, to do this you want to measure the channels inside dementions and not how deep it is, that comes next
you measure all of the channels for thickness and deduct 1/16th of an inch from your measurement usually you should end up with : 5/16" or 3/8" or 7/16 of an inch
for the width of the screen you measure from the deep channel on one side, to the edge of the channel on the opposite side, less about 1/8th of an inch
For the height you measure the same as the width, you measure from the deep channel on the top, to the edge of the shallow channel on the bottom less about 1/8th of an inch
again if you have your old screens, you must look and see if they might need some kind of springs or clips to hold them in, also look in the channels on your window framing to see if there are any springs that are already there, you might ask the neighbors if you could look to see if they have the same type of windows that you have so you can get information on what the original screens might have looked like.
Windows Without Channels
Windows without channels require some special hardware, flange clips usually, these chips are made to go against the flange of the window like a couple of cradles they hold the screen in on the bottom, and you use knife latches or a couple of screws on the top .
For measuring windows without channels, you measure the daylight measurement (inside the flange) then you have to measure the depth of the flange clip and figure as much to the top, add them together and that's your measurement.
For windows with channels on one side only and the opposite side is just a nubb , just measure from the deep channel, to the edge of the nubb, less about an eight of an inch and use a couple of corner flat springs on the deep channel, that should keep that puppy in there real tight, here are some knife latches and flange clips to look at.
Installing Sliding Window Screens
Installing screens is quite easy once you learn how to do it , like anything else
its all in the knowing , after measuring from the deep channel to the edge of the opposite channel your gonna put the screen in the same way "in the deep channel to the edge of the Shallow channel
how do you get the screen in both deep channels at the same time ?
the answer is simply turn the screen to where you can put two corners in the deep channels first and then simply turn the screen until it goe's in like magic, but if it doesn't, a thin puddy knife is a good tool to install screens with or even a spatula will do,
but dont pry it too hard and go and break it, if its too big re-measure again and just bring it back in and we'll fix it for you.