DIYHD 6.6FT Stainless Steel Ceiling Mount Sliding Barn Door Hardware Hardware only,not including door panel Material:Stainless Steel 304,POM;Surface:Brushed;Suitable for door thickness:35-40mm; Each two rollers can hold one door panel MAX weight 90kg Package's including:Flat roller*2,Stopper*2,6.6FT Track*1,Track&wall connector*4,Floor guide*1 The track is not pre-drilled 16" holes,can not be used for studs wall Pictures provided for visual reference only: actual product may vary. Please check full set hardware information below. Hardware Material:Stainless steel 304;Plastic Surface finish:Brushed Roller*2; Stop*2; 6FT track*1; Ceiling bracket*4; T guide*1; L guide*2; Pre-drilled 19 5/8&#034; apart holes on track; Half part of ceiling bracket already pre-fixed on the track; This item offered 2 kind of floor guide: T guide:door panel&#039;s bottom need to cut a groove,Tguide will be hidden under the groove L guide:no need cut groove on the door panel,easy for installation Small gap(1/5&#034;)between door and ceiling Small gap(1/2&#034;)between door and wall Door panel&#039;s height=Ceiling height - 5/9&#034;; Add a wooden board under the ceiling if door panel not high enough; Suitable for door thickness:1 3/8&#034;~1 3/4&#034;; 2 roller can bear MAX weight 180lbs;