DIYHD MM20BP6FT 6FT Barn Hardware N Bypass Bracket Double Sliding Door Track, 6 Feet Kit, Black Hardware Only,Not including Door Panel Material:Steel;Color:Black; Package's including:Roller*4,Stopper*4,6FT Track*2,Track&wall connector*10,Bypass L connector*5,Floor guide*2,Anti-pad*4 Hardware suitable for door thickness 40-45mm Pre-drilled 16" apart holes on track,Two rollers can bear MAX weight 90kg Bypass system require high space(at least 11 13/20&#034; ) from top of the door to the ceiling,pls check your openning space before order. The gap between two doors are 2&#034; based on the door thickness40mm(1 3/5&#034;) ,we don&#039;t have better way to reduce this gap. Customers can use thickness 45mm(1 3/4&#034;) door panel to reduce a little. Our suggestion is to make door panel more wider than openning(openning/2+4&#034;) to cover the sight between two door&#039;s gap. Track had been pre-drilled 16&#034; apart holes,can be used for 16&#034; apart studs wall The bypass system need drill 3 line holes on the wall.It&#039;s very important to double check the level to make all of them in same height. Door panel need to pre-cut a groove(Width 3/5&#034;;Height 1&#034;) ,pls let your door maker finish this job when you order the door. Hardware Only,Not including Door Panel Material:Steel; Color:Black Package&#039;s including: Roller*4 Stopper*4 6FT Track*2 Track&amp;wall spacer*10 Bypass L connector*5 Floor guide*2 Anti-pad*4 Prepare door panel and hardware Door panel pre-cut groove,Groove Height:1&#034;*Width:3/5&#034; Prepare gasket or wooden board/thick spacer if you have thick frame/baseboard Step1:Drill holes on the wall; H is door panel&#039;s height,H+43MM(1 7/10&#034;) is the place we need drill holes for innner track. Step2:Double check the level of the holes,then tight the inner track on the wall with spacer. Step3:Drill holes on the door panel (see photo manuel step 3) and fix the wheels. Step4:The round dics are anti-pad,they can reduce the gap betweem door and track in case wheels jump off,pls definitely use them(any place on the top of the door and under the track) Step5:Hang wheels on the track. Step6: There are 2 &#034;L&#034; bypass bracket,the 3-hole L is connector with outter track,4-hole L is tight on the wall. First,fix two L brackets together with bolts. Second,put the whole bracket on the wall to find the hole on the wall for 4-hole bracket,then tight the screws(The 3-hole bracket is on same level with the inner track) Third,fix the outter track/spacer together with the 3-hole bypass bracket to get outter track installed. Step8:Fix the anti-pad on the outter door Step9:Install floor guides under the door panel groove. Step10:Fix stops on the end of the track