It s the roof design that is the most important.
Sukkah roof rules.
According to halakha a sukkah is a structure consisting of a roof made of organic material which has been disconnected from the ground for the purpose of the commandment the s chach.
The inside of the sukkah must measure at least seven tefachim long by seven tefachim wide.
It is best that a sukkah have four.
A basic sukkah plan consists of a roof made of organic material supported by walls made from material of your choice.
This is the smallest area in which a person could reasonably be expected to sit.
One must first erect the walls and only then place the sechach covering.
A sukkah must have three walls.
There is no maximum width or length but the maximum height is 20 amot.
There are few basic rules.
Even if the sukkah is very long it must still measure at least seven tefachim wide in practice this means that the sukkah should preferably measure 70cm x 70cm.
It should be at least three feet tall and be positioned so that all or part of its roof is open to the sky.
Most of these rules specify incompletion and permeability.
If it is higher than 20 amot it is invalid.
It is meritorious to start building the sukkah immediately after yom kippur even if it is friday because a chance to perform a precept should not be put off.
As such there are a few technical rules as to the proper roof of a sukkah.
If the sechach is put up before there are walls.
The walls of the sukkah may be made of any material but must be sturdy enough to withstand an ordinary wind code of jewish law orach chayim 630.
A sukkah must be built anew every year for the purpose of the mitzvah.
But the sukkah rules also suggest that enclosure whether at the wall or roof should never be complete and should be partial to allow entry both physical and visual into the sukkah and out towards the sky.
If the walls of the sukkah are 10 tefachim tall but they do not reach up to the sechach the sukkah is kosher as long as the walls are lined up with the roof or within 3 tefachim based on the principle of gud asik mechitzta.