Internal door sizes

[billozz]

Hi all have 6 doors that I want to replace but they're all different sizes all same height but very different widths from 715,720,760,770,770 to 810 .
My question is can I trim panel doors down ? According to the label on the doors at my local hardware store you can only trim about 10mm from the width. Also can I use their standard width door (760) and add to it too make it Upto the 810mm .
Is there any reason why they tell you not to trim more than that of a door ? Add they had the same instruction on a solid pine door.
Thanks.

 

[Wayners]

Hollow doors have limited wooden strips around the edges. You can glue new wood strips in if needed.

Solid doors you can cut more off no problem

 

[billozz]

Hollow doors have limited wooden strips around the edges. You can glue new wood strips in if needed.

Solid doors you can cut more off no problem

So I can actually cut the doors down to the size I need , but I would presumably need to cut from both sides?

 

[foxhole]

So I can actually cut the doors down to the size I need , but I would presumably need to cut from both sides?

You trim both sides but ensure its solid timber not a veneer .