5x5 Piston Door Design

RedstonerBuilding → 5x5 Piston Door Design

I have a design for a 5x5 door that would be neat to see in action. link. if you don’t feel like building it all, the triple piston extender for the side pistons would be nice to see too :)
I dont think this is a fully functioning 5x5
If you mean it’s not possible, I know it’s possible. If it’s a flaw in the layout, then I can fix it. I’m just unsure of how to make the triple piston extender on the side.