Armoured Cable (Taffs Well CF15)

I am looking to put an electrical supply to the sheds at the far end of my garden that require electric to at least three sheds. Reasonable off cut lengths I would love to stop me having to cut and splice into each shed, and also from more than one freegle poster, I can collect at any time, and thank you for reading. My son-in-law is an Electrician assisting me to complete this project where the sheds are being made water tight, and purchases of other sheds are being assembled already for the summer,m and gardening projects planned for the kids.