Boneh

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Building shelters and tents

  1. Setting up a functional installation attached to the ground is a violation of Boneh (building). For example, it's forbidden to erect a post in the ground or tomato stake to support a tomato plant. [1]
  2. Laying bricks, setting up rocks as a border to a garden, putting down rocks for landscaping purposes (like chips around a tree or on a road or path), and building a fence are all violations of Boneh (building). [2]
  3. Building a Sukkah is forbidden as Boneh (building). [3]
  4. Building any functional land structure whether it is permanent or temporary is forbidden. [4]
  5. However, using an object as it is normally used such as closing a door is permitted. Similarly one may replace a removable paper towel roll or removable toilet paper holder. [5]

Adding on to a existing structure

  1. Just as it is forbidden to create even a temporary structure on Shabbat, it is forbidden to add onto a permanent structure even if the addition is temporary.[6]
  2. In previous centuries it was common to have dirt floors and it would be forbidden to put down new sand as it is left as a permanent layer of the floor and is a violation of Boneh (building). [7]
  3. Putting down a large area rug which is meant to remain there for more than 7 days is forbidden as it is considered something that can become nullified to the floor. [8]
  4. Tiling a floor, wallpapering a room, installing a doorknob are all forbidden as adding to an existing structure. [9]
  5. According to many poskim it is permitted to rehang a picture that fell on Shabbat as long as the picture isn't expensive and rare. [10]
  6. One should not replace a mezuzah that fell on Shabbat because of issues of adding to an existing structure and muktzeh. However, if it is lying on the floor one pick it up in a abnormal way such as by using the palms of both hands. [11]

Digging and filling a hole

  1. When people used to have dirt floors, if there was a hole in the floor, filling it up would be a violation of Boneh. [12]

Assembling objects

  1. Making a earth vessel such as an oven or barrel before it is hardened in the kiln is a violation of Boneh. [13]
  2. One shouldn't untangle Tzitzit strings on Shabbat because this involves Tikkun Kli (fixing of a vessel). [14]
  3. One shouldn't make a paper boat or paper hat by folding the paper since this involves creating a vessel. [15]
  4. One may fold a napkin regularly, but one shouldn't fold it in a special shape, such as is normally done in honor of guests. [16]

Building a tent

  1. It’s forbidden to set up the roof of a tent, permanent or temporary, on Shabbat, even if one there are no walls. Additionally, it’s forbidden to add onto a tent structure, however, a temporary addition to an existing structure is permitted. [17]
  2. It is forbidden to set up a tent out of blankets even if it is meant to be temporary. [18]

Adding an existing structure

  1. It’s permitted to make a temporary addition to an exisiting tent. Therefore, if there is a Tefach of roof already opened before Shabbat one may continue to add a temporary addition to that roof, but one should only add to the existing roof starting from the side which is already roofed. [19]
  2. One may not put a mat on top of polls or walls even if the mat is rolled up if there is a Tefach of width to the roll of the mat. Even if the rolled mat was put there before Shabbat one may not unroll it on Shabbat, however, if a Tefach of the mat was already unrolled then it is permitted to continue to unroll it on Shabbat. [20]

Roof which is attached

  1. If a roof was attached before Shabbat with hinges or another permanent connection it is permitted to spread out that roof (which was attached) on Shabbat. [21]
  2. It is permitted to open the hood of a baby carriage if it was attached from before Shabbat, however, it was attached on Shabbat one may not spread it one Shabbat. Once the hood is open it is permitted to add a temporary additional roof but one should start to add to that roof from the side which is already covered (by the hood). [22]

Umbrella

  1. The Rabbis forbad opening and closing an umbrella on Shabbat. Furthermore, they forbad using an umbrella that’s already opened from before Shabbat. [23]

Binoculars

  1. One may focus binoculars on Shabbat. [24]

Mechitza

  1. It’s permissible to set up a partition as a mechitzah in shul between men and women on Shabbat. [25]

Saltshakers

  1. It is permitted to open and close a saltshaker on Shabbat. [26]

Pot covers

It is permitted to cover or remove the cover on a pot on Shabbat. [27] Some say that one may not cover a pot which is larger than 40 seah. [28]

Glasses

  1. Some poskim permit a glasses lenses to be replaced by a non-professional [29] while others forbid. [30]

Pictures

  1. Some say that on Shabbat it’s permitted to hang or remove a picture on a nail already in the wall. [31]

Bottle caps

  1. See the Opening_bottles_and_containers#Bottle_caps page.

Ice cubes

  1. Some are lenient. [32]

Watches

  1. It is forbidden to wind a watch which has stopped working on Shabbat. [33] Some say that one may wind it if it is still working. [34]

Shtender

  1. Some say that it is permitted to adjust the height of a shtender if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed (as is common which shtenders in shul). However, if the parts fit tightly or it isn’t opened and closed frequently (as is common which shtenders in a house) it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [35] However, some poskim are lenient in all cases. [36]

Play pen

  1. Some sat that it is permitted to set up a baby’s play pen only if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [37] However, some permit it if it is used frequently. [38]
  2. It is forbidden to cover a play pen with a blanket to protect it from the sun or bugs. However if the blanket was spread over the pen from before Shabbat at least a tefach in width (not including the part which was rolled up) then one may spread it out fully on Shabbat. One should make sure not to remove the blanket totally rather leave at least a Tefach spread out. [39]

Baby basket

  1. It is permitted to adjust the height of a baby’s basket if (1) the parts aren’t held tightly and (2) the parts are frequently opened and closed. However, if the parts fit tightly or it isn’t opened and closed frequently it’s forbidden. The pieces are considered held loosely if one isn’t considered if the parts move around where they are joined. [40]

Sukkah Schlock

  1. It is permitted to put a rainproof cover (like a plastic tarp) on top of the Sachach of a Sukkah on Yom Tov, however, when doing so one should be careful not to move the Sachach because it is Muktzeh. [41]

Folding table

  1. It is permitted to open a folding table. [42]
  2. It’s permitted to add a table leaf to extend a table on Shabbat, however, one should take it apart unless one needs the space on that Shabbat. [43]
  3. One should not remove a drawer from a table if there’s a depth of a Tefach in the drawer, however, it is permitted to remove a drawer from a dresser because even after removing the drawer there still remains a roofed structure in the dresser. [44]
  4. It is permitted to spread a tablecloth even if it hangs over the side of the table. [45]

Beds

  1. It is permitted to spread a bed sheet even if it hangs over the side of the bed. [46]
  2. It is forbidden to put together a crib on Shabbat. [47]

Building a wall

  1. It’s forbidden to build a permanent wall which means that it is meant to last a few days. [48]
  2. It is permitted to erect a temporary wall even to protect from the sun or wind; for example it’s permitted to set up temporary walls around a sick person’s bed [49]
  3. It’s permitted to place a cloth in place of a broken window, but one may not use nails or thumbtacks. [50]
  4. It’s permitted to set up a Parochet (curtain) in front of the Aron in Shul on Shabbat as long as it doesn’t have a width of a Tefach as a roof. Some only permit if there are doors besides the curtain while others forbid unless there are doors. [51] If it is a large Parochet it should only be put up by two people so that it doesn’t fold over and form a tent on Shabbat. [52]

Curtains

  1. It’s permitted to set up a curtain in place of a door even if it’s attached at the bottom and top only if it is meant to be set up temporarily (less than a few days). [53]
  2. Some permit setting up a curtain even for many days (permanently) if it is only attached at the top and not the bottom. However, others hold that this is biblically forbidden. Even according to those who permit when put up a large curtain one must make sure to put it up with two people so that it doesn’t fold over while trying to put it up and when it folds over it will form a tent on Shabbat. [54]
  3. Setting up a curtain in place of a window is the same as a door (if it’s temporary it’s permitted, if it’s permanent some permit if one only attaches it at the top while others forbid.) [55]

Sources

  1. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1005)
  2. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1006)
  3. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1010)
  4. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1012) explains that if it is a construction that can't be taken apart and only can be broken then it's forbidden biblically whether it is permanent or temporary and if it is a assembly that can be dismantled then building it for temporary purposes (less than 7 days) is a rabbinic violation and building it for permanent purposes is biblical violations.
  5. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1014-5)
  6. ↑ Kitzur S"A 80:67
  7. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1015)
  8. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1017 and 1019) explains that since it is only a loose addition it doesn't become nullified to the floor unless it is put there for 7 days.
  9. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1016-7)
  10. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1019) explains that that according to many opinions hanging a picture isn't a violation of adding to a existing structure because it retains it's own function similar to putting a potted plant on the floor or a vessel in the breakfront even though it will remain for a long time. On pg 1038 he writes that it's permissible to rehang it unless it is a expensive and rare painting because it would be muktzah and according to some poskim it's muktzeh once it was attached during the onset of Shabbat.
  11. ↑ 39 Melachos (Rabbi Ribiat, vol 4, pg 1038)
  12. ↑ In Gemara (Shabbat 73b) Rava says that if one fills in a hole with dirt inside the house, one has violated Boneh. Rambam (Shabbat 10:12) rules that flattening the ground indoors, by flattening a mound or filling in a hole is a violation of Boneh. Mishna Brurah 337:6 writes that if one intentionally fills the holes when sweeping one would violate Boneh.
  13. ↑ Rambam (Shabbat 10:13)
  14. ↑ Shemirat Shabbat Kehilchata 15:94
  15. ↑ Shemirat Shabbat Kehilchata 16:21
  16. ↑ Shemirat Shabbat Kehilchata 28:17
  17. ↑ Shemirat Shabbat KeHilchata 24:1-2
  18. ↑ Menuchat Ahava (vol 3, 23:8), Shemirat Shabbat KeHilchata 24:1-2
  19. ↑ Shemirat Shabbat KeHilchata 24:6
  20. ↑ Shemirat Shabbat KeHilchata 24:5, 7
  21. ↑ Shemirat Shabbat KeHilchata 24:13
  22. ↑ Shemirat Shabbat KeHilchata 24:13
  23. ↑ Shemirat Shabbat KeHilchata 24:15, Ben Ish Chai (second year Shemot #8)
  24. ↑ Kaf Hachaim 313:73, Ketzot HaShulchan 119:12 explain that this does not pose a problem of boneh because it is the regular method of use.
  25. ↑ Yalkut Yosef (vol 2, 315, pg 531)
  26. ↑ Minchat Shlomo 1:11:4 says that this isn't an issue of boneh since it isn't typically screwed on tightly.
  27. ↑ Yalkut Yosef (pg 506)
  28. ↑ Or Letzion (vol 2, chap 28:5)
  29. ↑ Yalkut Yosef (pg 512)
  30. ↑ Shemirat Shabbat KeHilchata 15:77
  31. ↑ Yalkut Yosef (pg 527)
  32. ↑ Yalkut Yosef (pg 515)
  33. ↑ Shemirat Shabbat KeHilchata 28:19
  34. ↑ Yalkut Yosef (pg 512)
  35. ↑ Or Letzion (vol 2, 27:3). Sh"t Minchat Yitzchak 9:38 prohibits in any event
  36. ↑ Yalkut Yosef (314, pg 504), Shulchan Shlomo 313:7, Sh”t Shevet HaLevi 6:32.
  37. ↑ Or Letzion (vol 2, 27:1)
  38. ↑ Shemirat Shabbat KeHilchata 24:23
  39. ↑ Shemirat Shabbat KeHilchata 24:9
  40. ↑ Or Letzion (vol 2, 27:1)
  41. ↑ Shemirat Shabbat KeHilchata 24:10
  42. ↑ Shemirat Shabbat KeHilchata 24:23
  43. ↑ Shemirat Shabbat KeHilchata 24:23, Practical Laws of Shabbat (Rabbi Rafeal Soae, vol 2, pg 146)
  44. ↑ Shemirat Shabbat KeHilchata 24:24 (and note 85)
  45. ↑ Mishna Brurah 315:31, Shemirat Shabbat KeHilchata 24:25
  46. ↑ Mishna Brurah 315:31, Shemirat Shabbat KeHilchata 24:25
  47. ↑ Shemirat Shabbat KeHilchata 24:23
  48. ↑ Shemirat Shabbat KeHilchata 24:26
  49. ↑ Shemirat Shabbat KeHilchata 24:27
  50. ↑ Shemirat Shabbat KeHilchata 24:27
  51. ↑ Rama 315:1, Mishna Brurah 315:7
  52. ↑ S”A 315:12, Mishna Brurah 315:8
  53. ↑ Shemirat Shabbat KeHilchata 24:27
  54. ↑ Shemirat Shabbat KeHilchata 24:28 quotes the opinion of the Rama 315:1 and Mishna Brurah 315:6 as being lenient against the Chazon Ish 52:13 who is strict, but don’t resolve or take a side in the dispute. The Shemirat Shabbat KeHilchata insists on putting it up with two people based on the S”A 315:12
  55. ↑ Shemirat Shabbat KeHilchata 24:29
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