# tub enclosure grab bar installation help

**URL:** <https://boards.straightdope.com/t/tub-enclosure-grab-bar-installation-help/574888>\
**Category:** Factual Questions\
**Created:** [March 16, 2011, 6:43am UTC](https://boards.straightdope.com/t/tub-enclosure-grab-bar-installation-help/574888 "2011-03-16T06:43:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Magiver](https://avatars.discourse-cdn.com/v4/letter/m/4491bb/32.png) [@Magiver](https://boards.straightdope.com/u/Magiver)\
**Post date:** [March 16, 2011, 6:43am UTC](https://boards.straightdope.com/t/tub-enclosure-grab-bar-installation-help/574888/1 "2011-03-16T06:43:34Z")

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I may be called upon to install some grab bars for an elderly person. The tub enclosure stands away from the wall so Ill have to use a grab bar with a spaced anchor. It looks pretty cut and dried in theory. Find the stud above the enclosure and mark down, drill hole. I’m a little hesitant to drill into fiberglass with the wrong bit. Should I use a spade bit or a hole saw cutter or \_\_\_\_\_\_\_\_\_\_\_\_\_\_ ?

Anything I’m not thinking about ahead of time? I don’t want to cut a $600 hole.

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**Author:** ![Dereknocue67](https://avatars.discourse-cdn.com/v4/letter/d/6de8d8/32.png) [@Dereknocue67](https://boards.straightdope.com/u/Dereknocue67)\
**Post date:** [March 16, 2011, 8:28am UTC](https://boards.straightdope.com/t/tub-enclosure-grab-bar-installation-help/574888/2 "2011-03-16T08:28:59Z")

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I would use a Forstner bit that will fit any standard drill. A 1/4" bit will cut a clean accurate opening through fiberglass.