Related sobre Midot 4:8

There is no difference between a private altar and a public altar except that only vows and dedications may be brought on a private altar, whereas any offering that is not a result of a vow or a dedication may be brought on a public altar. There is no difference between the sanctuary in Shilo and the Temple in Jerusalem except that in Shilo, the building was made of stone on the bottom and curtains above.

One who makes a place for a rod, for tongs, or a lamp, the minimum size is whatever is needful, according to the word of Bet Shammai. Bet Hillel says: one handbreadth square. [If it was made] for a peep-hole, for speaking through to his fellow, or for [human] use, the minimum size is one handbreadth square.