It really depends on what kind of swing you want to install. Some need permits and code passes. Others just need to read the box and see what the clearance is on the swing.
Select an area with plenty of room. Even if you don't plan on your porch swing doing much swinging, you'll need at least 3 feet of space between the swing and nearby structures.
They can be very safe as long as a small child is being closely supervised while being around or on the porch swing. Another thing to take into consideration is how well is the porch swing secured...
Depends on the type of porsche. The cheapest version is around 50.000 euro, or about 57000 dollar. The 911's cheapest version in 70000 euro.Tax not included. You should have used google to answer...
A proch can be as cheap as going to pick up old lumber from an house, buying some nails and getting the tools you need, then building it yourself. Hiring a carpenter to design and build it for you...