بَيْتُ ٱلْعَنكَبُوتِ  Perception and meanings; it is NOT Spider's Web.

             Grand Quran has given an example to elaborate the psyche/conduct of certain people:

مَثَلُ ٱلَّذِينَ ٱتَّخَذُواْ مِن دُونِ ٱللَّهِ أَوْلِيَآءَ كَمَثَلِ ٱلْعَنكَبُوتِ ٱتَّخَذَتْ بَيْتاً وَإِنَّ أَوْهَنَ ٱلْبُيُوتِ لَبَيْتُ ٱلْعَنكَبُوتِ لَوْ كَانُواْ يَعْلَمُونَ

"The example of those people who have adopted/perceived as protectors/god fathers other than Allah is like a peculiar female spider who adopted a house. And indeed the flimsiest house is that adopted house of the female spider if they know/have the information" {Refer 29:41}

           After translating the words كَمَثَلِ ٱلْعَنكَبُوتِ ٱتَّخَذَتْ بَيْتاً to mean that spider builds/makes a house it is explained in the exegeses in Urdu and English that the spider's web is the weakest of the houses. But the fact of the matter is that there is not a single word which could make us infer that Quran has referred to "Spider's web". Quran has not even said that spider makes or builds a house. It has said that ٱتَّخَذَتْ بَيْتا "she acquired/seized/took/adopted a house". اِتَّخَذَتْ is past, feminine, singular; its Root is "أ خ ذ" which signifies to take, receive, get, seize, capture, acquire, adopt. This has been used in relation to  ٱتَّخَذُواْ which is also past, masculine, plural from the same Root which has correctly been translated as "take, choose, accept". Lane's Lexicon also translated it as "Spider's Web"

http://haqeeqat.org.pk/English%20Tafsir%20e%20Haqeeqat/002.%20Meanings%20and%20Tabweeb%20of%20words/008.%20Baitil%20ankaboot%20Spider/08.%20Baitil%20Ankaboot%20Spider.htm