Insulated plasterboard and sockets

[ttylko]

I am looking to go install insulated plasterboard to existing plaster, foam adhesive.
Due to the thickness, I will have to move the socket forward. Will I need a specific casing or just move the current metal casing forward into a whole in the plasterboard? (freshly rewired so not covered yet)
Thank you

 

[motorbiking]

You will need longer machine screws, m3.5 75mm available from screw fix or you can use an extension stud

Easydrive Slotted Raised Electrical Screws M3.5 x 75mm 50 Pack - Screwfix

Order online at Screwfix.com. Nickel-plated brass. Full, single thread with slotted, raised head. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

Extension Stud M3.5

 

[opps]

How thick will the insulated plasterboard be?

If thick enough, it may be easier to fit new dry lining boxes. Your cut outs wont have to line up perfectly with the old metal back boxes.