How to repair this particular toilet flange

[Cjccmc]

Metal portion is rotted out in one place but doesn't remove easily. I can't figure out the raised lip all around the opening (3.75" ID), haven't seen that in repair videos. Top of red metal flange about 3/8" below top of finished floor. Flange seems stuck to drain pipes below. What is the easiest good repair? Limited tools and skills here.

 

[Breplum]

there are a variety of repair flanges. one with hinge on one side could work. ultimately you will need solid wood to attach to, using stainless steel or brass screws.

 

[Sponsor]

 

[tanyaklein]

To repair a toilet flange, start by turning off the water supply and removing the toilet. Clean the area around the flange and check for cracks, rust, or loosened screws. If it’s damaged, use a flange repair ring or kit, or replace the flange if necessary. Ensure it sits level with the floor. Install a new wax ring, reset the toilet, and tighten bolts evenly to prevent leaks.