
Nope, you don't need to drill anything to install the Top Shelf TSB-2438 AC bracket. According to the manufacturer, it supports up to 225 lbs and you can set it up in just a few minutes, all from inside your room. You just attach the wings and legs, position it in the window frame, and you're good to go.
It works for double or single-hung windows between 24” to 38” wide, with wall thicknesses ranging from 6” to 12”. Just make sure you’ve got at least 10” of space below the window. However, it's not compatible with slider, crank-out, casement windows, or certain wood windows like the Andersen 400 series, and it doesn’t work with slide-out A/C units.
The manufacturer says it's made from rustproof, powder-coated steel, adding some extra durability with its 4-sided enclosed legs and sturdy steel tabs and pins.
Our research shows that people generally find it pretty easy and quick to install, often just taking 5-10 minutes. Users like that it snaps together without the need for screws, nuts, bolts, or any extra tools. One person even commented how much simpler it made installing their AC unit without having to balance a heavy appliance.
On the flip side, a few folks have raised concerns about its long-term durability. Some have mentioned that the paint started to flake off, leading to rust over a few years. There are also some issues with compatibility, especially with non-standard or older window frames.
A few users mentioned that the rubber parts meant for stability weren't enough and they had to add more materials to get a snug fit. One user even needed to modify their window quite a bit to get the bracket to fit, which took more time than they expected.
So, while the Top Shelf TSB-2438 is generally liked for its easy installation and sturdy build, you should double-check that it’s compatible with your window type and be aware of potential long-term durability concerns.
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