floor cutting or bust the ceiling ,neatly as posible

[i=p/u]

marked out me first row of lights in 2 rooms to finish up today for tomorrow, i can get to above ceiling but the floorboards are the groove ones and im hopping no noggins in, as they nightmare to get back down, then was thinking maybe just cut a 100mm track out with angle grinder on ceiling beside the lights, which do you think will be more boring and lest constructive.. on top of the floor boards there is loads of chairs and tabless.... help

 

[timbobelfast]

If your using SWA and a PVC CU, use a single surface metalclad box and glan the SWA into that then bush into CU. With those Hager CUs run a stanely knife over any knock outs your require.

 

[i=p/u]

im using 6mm hi tuff just going to run it in back of cu, surface mounted. then for circuits comming out ive studdied the cu and if i cut the knock outs carefull the 20mm conduit wil just sit in there, not the best was i suppose, but it will work. is there a height to install cu, and any tips on stripping high tuff, dont think il struggle but if yoy give me good tip, well happydays.....