*Track\'s length is twice of the door panel\'s width.
2M track-up to-1M door panel
1.83M track-up to-0.9M door panel
*The length from the top of the door to the top of the roller is about 132mm,you need at least 150mm for installation
*suitable for door panel Thickness:35-40mm
*Two rollers can bear MAX weight:90kgs
We\'ll ship screws for concrete wall if you didn\'t mention anything about it after you placed the order.
3.About the after sale service:
1.Before we ship the goods,will check hardware one by one in case any quality problem.
2.When you received the goods and find any demage,pls refuse to sign the package.
3.If you already signed the package and find the package demaged or missed items,pls take photos(products photo and package photo)to me and dispute with local express(they will give you a complaint number,pls give it to me).According to your photos and complaint number,we will re-send the demaged or missed items.