Heavy Duty Shelf Brackets Support max 110LB/pair. The material of our L brackets are high quality iron with great durability. They can support maximum 110lb per pair if properly installed. You could installed more those brackets for floating shelf if you want to use them for more heavy duty load. All our L brackets with lips have a frosted black coat and each bracket is individually packed to prevent any scratches during transportation. You will not regret your choice! Best High Quality Shelf Brackets Include all Hardware. Our iron shelf brackets package comes with 4pcs 12inch frosted black L brackets with lips an and all necessary 16 screws and 8 anchors. The size of the heavy duty shelf brackets is 11.25x6x1.5 with a thickness of 0.2 inch. All our screws are made of stainless steel to ensure good holding capacity. You will buy the best shelf bracket for open shelving from us on amazon! Easy Installation& Fits Common Lumber Boards:This open shelf bracket set is designed to perfectly fit nominal size 1" x 12" and 2" x 12" dimensional lumber with actual 11 1/4 inch (11.25") width. You could buy the lumber board from home depot. If you would like to DIY the board, please notice the actual width of the bracket.We also include an instruction card in the package for to take reference to. If you cannot understand it, welcome to by write us for more help. Outstanding Customers Support for 100% Satisfaction Guarantee. 100% satisfaction is what we care most. We offer 90 days no reason refund or offer new free replacement if any quality problem occurs. Welcome to contact us any time to solve any problem for you and we will do our best to offer any help to you. Not only can you buy the best black shelf brackets from us, but also you can enjoy the best shopping experience from us!