The cost to have a shower tray installed ill depend on the type of tray you choose. You can expect to pay about $20 per hoor for the labor.
Materials needed to install a shower tray are: a spirit level, a pencil and a silicone sealant. It is recommended that the shower tray should be installed by a qualified plumber.
How much does the cheapest cardboard lunch tray cost?
it depends. Usually is it is the final tray/retainer I heard 300. For a regular tray $65
A 50mm (2 inch) shower waste trap.
About maybe around 3$ to 5$
The answer to your questions depends on what material your want your tray to be made of. Laptop trays can range in price from 10 to 100 dollars.
It's made of a resin setting plastic.
Most high quality shower trays are made out of high gloss acrylic and are fibreglass reinforced. If you want to make it slip-resistant then buy a tray that has a textured floor and integrated tile flanges.
Usually less than a dollar - I just bought 2 yesterday -$1.98.
You can buy a box of 500 trays for about US$25, meaning they cost around 5 cents each. (The cost to the environment, of course, is much higher, as they lie in landfill for hundreds of years.)
wmrogers 101 how much does it cost?
A properly installed laptop tray should not flip over. You can nail or screw the laptop to the desk or not use a laptop tray if you fear for the safety of your laptop.