Timeline for Which shelf holds the most weight

Current License: CC BY-SA 4.0

14 events
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Jan 8 '20 at 8:58 comment added Jerry.S @Graphus. thank you for taking time to comment. Leaving out relevant information was lack of time from my side and shouldn't be any excuse not doing it, sorry for that. The information (answers/comments) helped a lot and is appreciated. About the weight it should (expected) hold, will be a max of 10kg to 15kg, known strength for a set flanges as shown should be around 15kg each, so shelf(+/- 6kg) and expected weight of "stuff" should be inside the range of possibility. Thank you.
Jan 8 '20 at 8:27 comment added Graphus If you'll be asking another Question in future, please try to include all relevant info when you first post, rather than providing key details in dribs and drabs as you've done. If you do the first it potentially means that one or more Answers will be posted before an accurate picture is known and therefore are likely to be incomplete, possibly even incorrect (both of which actually happened here).
Jan 8 '20 at 8:21 comment added Graphus Within certain limits there's not enough difference in the weight the shelves can hold for there to be any reason to pick A over B (assumes the fixing to the wall will be the point of failure). However you haven't mentioned the weight you expect the shelf to hold. If it would be loaded very heavily the shelf material itself could be the point of 'failure'.... not that it will break, but bend noticeably which most find unacceptable. However this worry (if you had it at all, 3cm material is very stiff, even in softwoods) vanishes with a third bracket. >50kg would be no problem for this shelf.
Jan 8 '20 at 6:39 comment added Jerry.S @SaSSafraS1232, It will be attached to a brick wall, the shelf will be against the wall. Each flange-set will be connected to the wall using 5,0x50mm screws (using wall plugs). The shelf itself is 160x25x3cm (douglas pine) so using 3 sets of those flange "constructions". One in the middle, one 40cm to left one 40cm to the right of it.
Jan 8 '20 at 6:30 history edited Jerry.S CC BY-SA 4.0
add img to enlighten
Jan 7 '20 at 17:32 answer Eugene timeline score: 2
Jan 7 '20 at 17:12 answer SaSSafraS1232 timeline score: 4
Jan 7 '20 at 17:03 comment added SaSSafraS1232 What is the construction of the wall (drywall? brick? lathe and plaster?) and how are you planning to attach the flange to the wall? Will you be going into structure or drywall?
Jan 7 '20 at 15:35 history edited jdv CC BY-SA 4.0
Fixup flow and grammar a little, remove chatty bits
Jan 7 '20 at 15:32 comment added jdv Welcome to Woodworking SE. Make sure you visit the tour because Stack Exchange sites are not regular forums.
Jan 7 '20 at 9:51 history edited Jerry.S CC BY-SA 4.0
Edit to make question and info a little more clear.
Jan 7 '20 at 9:37 answer Martin Bonner supports Monica timeline score: 3
Jan 7 '20 at 9:15 review First posts
Jan 7 '20 at 15:35
Jan 7 '20 at 9:13 history asked Jerry.S CC BY-SA 4.0