Thank you for your question regarding the Delta Classic 400 - 60" x 32" Left Drain Shower Base.
I am so sorry for the inconveniences you have faced during installation and I am happy to help you today.
The initial rough-in pipe length is intended to be proud of the final installed position. This is to account for differences in shower drains and unlevel subfloors, where are mortar bed may be required.
Once the base is in its final position, the pipe can be trimmed to length.
I hope this is helpful and if there is anything going forward that we may be able to help with, please do not hesitate to give us a call on our warranty line at 800-355-2721 and we will be happy to help you where we can.
Date published: 2018-08-15