A sukkah which is more than twenty cubits high is not valid. Rabbi Judah validates it. One which is not ten handbreadths high, or which does not have three walls, or which has more sun than shade, is not valid. An old sukkah: Bet Shammai invalidates it and Bet Hillel validates it. What is an “old sukkah”? Any one which he made thirty days before the festival; but if he made it for the purpose of the festival, even at the beginning of the year, it is valid.

One who makes his sukkah under a tree, it is as if he made it within the house. One [who makes] a sukkah on top of another sukkah, the upper one is valid but the lower is invalid. Rabbi Judah says: if there are no occupants in the upper one, the lower one is valid.

If he spread a sheet over it because of the sun or beneath it because of falling [leaves]; Or if he spread [a sheet] over the frame of a four-post bed, [the sukkah] is invalid. But he may spread it over the frame of a two-post bed.

If he trained a vine or a gourd or ivy over [the sukkah] and put skhakh on top of it, it is not valid. But if the skhakh is more than them, or if he cut them, it is valid. This is the general rule: whatever is susceptible to [ritual] impurity and does not grow from the ground may not be used for skhakh, but whatever is not susceptible to [ritual] impurity and does grow from ground soil may be used for skhakh.

They may make skhakh out of wooden planks, the words of Rabbi Judah. Rabbi Meir forbids. If one places on top of [the sukkah] a plank four handbreadths wide, it is valid provided that he does not sleep under it.

A [wooden] roof that has no plastering: Rabbi Judah says: Bet Shammai say that he should loosen [the planks] and remove one from between each two. And Bet Hillel say he should either loosen [the planks] or remove one from between two. Rabbi Meir says, he removes one from between two, but he does not loosen [the planks].

One who roofs his sukkah with iron spits or with bedposts, if the space between them equals them, it is valid. One who hollows out a haystack to make for himself a sukkah, it is not a valid sukkah.

If he hangs walls down from above to below, if they are higher than three handbreadths from the ground, it is invalid. If he raises them from the bottom to the top, if they are ten handbreadths high, it is valid. Rabbi Yose says: just as from the bottom to the top ten handbreadths [suffices] so from the top to the bottom ten handbreadths [suffice]. If he distances the skhakh three handbreadths from the walls, it is invalid.

If [the roof of] a house is opened, and he placed skhakh over it, if there is a distance of four cubits from the wall to the covering, it is invalid. Similarly in the case of a courtyard which is surrounded by columns. A large sukkah which was surrounded with material which is invalid for skhakh, if there is a space of four cubits beneath it, it is invalid.

One who makes his sukkah like a cone-shaped hut or leans it against a wall: Rabbi Eliezer invalidates it since it has no roof, But the sages declare it valid. A large reed mat: if made for lying upon it is susceptible to [ritual] uncleanliness and is invalid as skhakh. If made for a skhakh, it may be used for skhakh and is not susceptible to uncleanliness. Rabbi Eliezer says, whether small or large: if it was made for reclining upon, it is susceptible to uncleanliness and is invalid as skhakh; if made for a covering, it is valid as a skhakh and is not susceptible to uncleanliness.