> For the complete documentation index, see [llms.txt](https://docs.wcproducts.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wcproducts.com/welcome/greyt/greyt-elevator-cascade/misc/faq-and-trouble-shooting.md).

# FAQ & Trouble Shooting

<mark style="color:blue;">Q: How square do the tubes need to be?</mark>&#x20;

A: They don’t need to be perfectly square, but we recommend making sure they are as SQUARE as possible. Use a metal chop saw or mill to cut these tubes.

<mark style="color:blue;">Q: What tubing can be used?</mark>

A: Any 2"x1" material can be used. The kit is designed to use 1/16" wall material. If other material is used, different sleeves may be needed to adapt to that wall thickness.


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