We don't have a screen on our door because the doggies ruin it. My German Shepherd jumped through our glass storm door when it was a juvenile, and we haven't had a screen since. We leave our front door open all the time but we need a screen because I hate flies. I put up a small pressure rod for a curtain at the top of our front door opening then I put one sheer white panel on the rod. This works wonders for keeping flies and other bugs out and it lets air in and the dogs and cats just push it out of the way to get in and out.
I was going to order a velcro screen from mail order but thought I would try this first. I am glad I did. The sheer see through panel moves in the breeze and the flies don't like to see movement.
By Robyn Fed from Hampton TN
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Screen doors are easily $100 & up - not including labor/or any other pieces that may be needed. This magnetic screen would be a cheaper alternative for an average of $20. I purchased mine awhile ago on Amazon. I improvised this magnetic screen door made for a sliding door for a regular door by folding both edges accordion style to fit my door. Then, I secured the all edges (except bottom) with spaced out nails that were included.