walls ceiling ral 6009 fir green smooth ceiling higher at front sloping to back no ceiling slats mirror required mirror with continuous warm white led strip on all four sides recessed aluminium channel led must fully surround mirror do not omit slatted feature wall only slatted surface vertical timber slats thin narrow no other slats anywhere gaps visible upper gap must exist and be visible painted ral 6009 upper gap size 30 mm at rear increasing to max 100 mm at front lower gap 100 mm above floor painted ral 6009 feature wall leds warm white led in recessed aluminium channel directly above slatted wall warm white led in recessed aluminium channel directly below slatted wall fixed to underside of slats not floor negative no slatted timber ceiling no timber in gaps no wide slats no led on floor do not remove mirror leds do not remove upper gap