This tool let's you design your own frame, see how it looks and get an idea of the price.
With the sliders you can change the properties of the frame.
And by using the mouse on top of the picture, you can turn and scale the frame.
Changing the angle of the roof also changes the hight of the trusses.
This changes the wall, or room hight.
Width, Length and number of posts
Changes those properties
Changes the size of the wood used for the frame. Standard size is 8x8 inch, or 20x20cm, about a hand span.
Change the scale at which the frame is displayed
Truss style (uses braces)
Let's you switch between different stlyes of trusses. Different trusses can be used for different things, like a Pulpetti is often used on terraces or garages, Collor trusses create large open spaces and Stopped braces can make an upstairs space usable.