Is installing a shower base with a mm or under tolerance for vertical movement (bend) at the center

[Mini Me]

The adjustments you guys are talking about cant be made easily I need to put my knee ( 100kg, 6ft1) on the base to see the bending. If I do the same on the cement .....
For the cement idea to work you need to agree to raise the shower base a little

 

[wwhitney]

The adjustments you guys are talking about cant be made easily I need to put my knee ( 100kg, 6ft1) on the base to see the bending. If I do the same on the cement .....

. . . you just have to be sure to put enough thinset mortar in that location (but not so much that you can't get the base down all the way), and then only do the compression test after the thinset has set (next day). If it still flexes, pull it back up (hence the slip sheet) and figure out what you did wrong.

Cheers, Wayne

 

[Sponsor]

 

[Jeff H Young]

so thinset , and adhesive out the window. what's another way you like mini me? how about plaster