Chi Sau is the most important part of the system. Chi Sau is not a form of kata. Chi Sau is not a form of sparring. Chi Sau is the bridge between techniques from the forms and real fighting. The forms are always the same. Chi Sau is free development. Every session is different.
Storm door installation will cost $200 to $400. It will take a professional half a day to a full day to install a storm door. The length of time it will take depends on the complexity of the installation. If the installation is straightforward then it will take less time, and therefore, cost less.
1 To have a contractor install the sliding door, the installation prices alone can cost anywhere from $500 to $1,500. 2  This will greatly depend on the door as well as the contractor you hire to install it. 3  For instance, Marvin.com is an online store that has a lot of differently designed sliding and swinging glass doors. Keep in mind that this is not going to include the professional installation fees. 2  A standard five to six foot door can be on the lower end, costing $500 to $1,000. 3  A larger door that measures eight feet or higher can cost $1,000 to $2,000. 4  Higher end doors that are taller than 12 feet can cost upwards of $3,000.