Prices are based simply on how much it costs to make them. I started out using a large size of good quality retail sunshade as my source material, which was ok except when the pattern was larger than the sunshade, which required panels to be joined, which added considerably to the cost. Now however, I am now using bulk material- 6mm thick reflective polyethylene foam made in Queensland. It comes in rolls 120cm wide, so there is no problem with tall or wide sunshades, except that they use more material and take longer to make. For rear or side windows the price depends upon the size and the method of attachment (magnetic or press fit) and varies considerably between models.
Some people may consider my prices unreasonably high, but with sales spread thinly across a large range of models it's a difficult business model. Each year there are many new models being introduced and it is not a trivial matter making new patterns. Generic sunshades come in only a few sizes, are made in Asia and are imported by the container load. Many of them are also made from cheap material although at the top end of the range there are products available with comparable quality to mine. At least ours are made in Australia, in Tasmania. So you get the satisfaction of knowing that instead of funding a sweat shop in some distant country, you are supporting one right in your own back yard.
Making your own
There is, of course,
the option of making your own sunshades, and for people with campers
for instance, that have many windows, this is often the only economically feasible
approach. There are several ways to make the initial pattern. One is
to tape some polythene to the outside of the glass and trace around
the black border or rubber seal with a texta. You may need to adjust
the size of the pattern according to the size of the actual opening
inside. Or tape some brown paper to the inside (make holes at
intervals and run the tape across them) and run your finger nail
around the desired edge. Then mark with a soft pencil. Cut around the
required pattern and trace onto a retail sunshade. If there is a
rubber seal with a recess around the window this can hold the
sunshade in place if you make the pattern slightly oversize. Failing
this you may be able to use the suction cups or Velcro dots, to
hold them in place. If you are really handy with a sewing machine you
could even bind the edge, but this is something I depend upon a
professional to do.
Nearly all individual sunshades weigh less than 500g and currently (Sep 2017) cost $7.95 for Regular and $10.85 for Express Post. Both are tracked, but because Australia Post no longer offers the security of a 'Do Not Safe Drop' option, parcels will be left on your doorstep if you are not home. Additional security can be achieved by specifying a signature on delivery, which adds $2.95 to the cost.
Sunshades taller than 105cm (currently only the Citroen Picasso and Peugeot 3008) are not accepted by Australia Post and can cost approx $14-25 depending upon the freight option and location, to send by courier. Please contact me for quotes for your location.