I don't think I expected them to weigh that much. They would be fine but you have to walk along the window frame which just doesn't provide the support needed for so much weight. So I will continue to use it elsewhere in the house but not where I planned it. I bought a smaller shelf bracket because I knew I needed a smaller profile and a shelf in the corner. They just don't work there. But overall the mounts are good and solid and will no doubt work well elsewhere, you just have to find out where they will be. (I'm thinking of a sewing room, and instead of a board at the top separated by two staples, I'll make a piece of wood cut in half to hold the fabric in a long roll. Sort of like staples that flex flexing so the fabric can conform to the curved cutout at the top of these brackets. I could make a board for the shelves and set up stoppers along the way, but I prefer a cradle to hold the rolled up fabric and it's easier too stop when hung high on the wall. Not sure if they want that, but this is a place strong enough to use those hefty brackets.
Pack Of 6 ETECHMART Rustic Iron Metal L-Shaped Shelf Brackets, 5 Inch Wall-Mounted Support For DIY Open Shelving, Heavy-Duty Corner Brace Shelf Supporter In Black
29 Review
Collapsible Shelf Brackets - Heavy Duty Metal Folding Bracket For Wall Mounted Bench, Table, Or Shelf, Space Saving Hinge Design, 2 Pack, Maximum Load Capacity Of 150 Pounds (14 Inch, Black)
27 Review
Heavy Duty 10" Folding Shelf Brackets - Stainless Steel Collapsible DIY Bracket For Bench Table, Max Load 550Lb (2 PCS)
34 Review
ETECHMART 5 Inch Wall Mounted Floating Shelf Bracket, Pack Of 4 L Shape Heavy Duty Rustic Iron Metal Corner Brace Shelf Supporter For DIY Open Shelving Decoration - Black
20 Review
Gorilla Waterproof Patch & Seal Liquid - Black 16Oz - Ultimate Solution For Quick Fixes (Pack Of 1)
39 Review
Eco-Friendly Solarez UV Cure Grain Filler & Sealer - Perfect For Fine Furniture, Guitars, Pool Cues And DIY Woodworking!
10 Review
Silver Holographic Stars Glitter Grout Tile Additive 100G - Easy To Use For Tiles, Bathroom, Wet Room & Kitchen
14 Review
Pack Of 1 Natural Wood Color 8 Ounce Bottle Gorilla Wood Glue
42 Review