Installing a toilet riser in a 1990 Lance 980

[fishing2]

I want to install Thetford toilet riser in my 980 but the flange is to close to the shower. I am thinking about cutting about 2" off one side of the riser.I'm afraid it may weaken it,if anybody has done that let me know if it worked all right.
Thanks
Dennis

[fishing2]

Thanks Old-Biscuit. I think that maybe I could add some wood reinforcement,that should make it stronger than new. I hope I can turn the flange a little bit that should make everything fit better.

[Old-Biscuit]

That Thetford Riser is NOT solid...it is webbed underneath

Cutting 2" off might/might not weaken it.

IF center ring was left intact it would still be able to spread the load

At $35 cheaper then new high profile toilet





Or build a custom riser box......and use a flange extension thru top of custom box