Top Shelf TSB-2438 Universal Heavy Duty Window Air Conditioner AC Support Bracket -Holds Up to 200 lbs., No Drilling or Tools Required, White

This ac mount is well made. It was packed well too. My Milgard windows are flush with outside wall. Before purchase, I looked at TopShelf Website. I knew the two feet at base would not touch my wall without a little modification. Each foot is removable and has four holes with rubber cushions inserted. I removed the cushions and attached a piece of primed, painted wood (approx 1 in. pad) using wood screws. I believe the attached wood provides even better distribution of force on the stucco wall. The mount works well and looks good.

Ok after many reviews and one really good one about the EZ mount funny enough a gentleman said he ordered both and the other one just worked better, so as this one was less I decided to start with this one. We have metal siding and any hole is forever and no ductwork in a 1952 home so at the high price this was solving what could be very expensive if I had water damage and our very short hot season in Oregon. We have a sill and I just adjusted to have a pitch with the legs. Now I can see how it would not work for some and there was only the position shown and way in front but with no holes I was willing for it to be ugly as a window unit is already ugly. The pegs are not supposed to line up per instructions as pictured I literally laid out the window and bounced and I’m far heavier than my 60lb black and decker 12000 btu AC. I say it’s absolutely worth the risk of not working with 30day returns

Extremely sturdy and easy to install BUT needs some modifications if using with an AC requiring to install the cabinet then the AC itself. I used 2 pieces of 3/8 thick aluminum I bolted to the far crossbar , then I could install the cabinet (bolted to the crossbars). I would suggest the manufacturer to offer this modification as an option. Fits tightly and very nicely. Required very little weather stripping. For all other window ACs, can be used easily. Just check that your windows are compatible with this shelf: go on the web site of the manufacturer: there are some good pictures. By the way the instructions are not well written.

Not a fan because it rust first season

Fits our very difficult-to-fit for other supports Brownstone window. Took all of 5 minutes to get it set up and installed, and it supports the AC perfectly.

I was so enthusiastic about this product. A screw-free design was exactly what I was looking for (I even googled it), as Id like to move my small Frigidaire AC from room to room as needed. I dont plan to use the AC extensively anyway, just need it for those random hot days on the coast. Thus I really wanted to avoid putting holes and hardware all over my window. I carefully read the description and my Andersen vinyl-clad windows fell neatly within the specs described. No rep contacted me after the sale, as other reviewers have stated. The shelf arrived in two days, and was incredibly easy to put together. Its a slick little shelf that is engineered smartly and sturdily. Every part was pressure-button adjustable; I didnt even need a screwdriver to put it together. The pressure buttons have a front and back, with the back slightly offset so there is no risk of the bar sliding uncontrollably when you depress the button. Thoughtful safety feature. Of course then I carried it to the window and attempted to install it. No matter how I situated it, I couldnt make it sit flush...with anything. The brief instructions are void of adequate diagrams, and the one photograph online doesnt sufficiently illustrate how the sill stop wings sit. The frame rail sits inside the window on the sill. But when the wings are extended to the window frame, they are notched in a very specific pattern which doesnt necessarily reflect that of the window trim. If the trim has any profile other than a plain 90 degree corner, it isnt going to fit cleanly. So there was a sizable gap between the frame rail and the sides of the window. Once seated on the sill, it tilted precariously on the outside portion, as the outer window ledge is angled downward for drainage (arent they all?), leaving only the legs to support the unit outside the house. This still might have been acceptable, but the angles were so sharp that, once the square upper sash was lowered onto the tilted top rail of the AC, there were gaps all around - a job worthy of a can of spray foam. The lower rail of the AC didnt even fit square within the frame rail, since the shelf was angled and the AC wanted to sit relatively square. When the AC side panels were extended, the resulting side gaps were enormous. I didnt expect an airtight fit, but the fit was so haphazard it seemed like the AC and the shelf were built for two entirely different purposes. The AC is already designed to seat with a downward draining angle; perhaps it was just poor fit that gave the shelf itself an approximate 10 - 15 degree slant. If the AC rail wasnt lodged inside the frame rail, it would have simply slid off the shelf. After adjusting and shifting and angling and maneuvering, I finally pulled the shelf out and rested my little AC directly on the sill, lowered the upper sash and extended the side panels. I included the picture herein, because with a near-perfect fit like this, I dont think I need to drop $100 on a shelf that will move my 41lb AC into a cockeyed position that will require miles of insulation and a handful of screws. That kind of defeats the goal of keeping it portable, so unfortunately the shelf is going back. On the bright side, this is a rockin little AC, and the $100 refund comes close to paying for a second one - maybe I dont need to move it from room to room after all.

Youll likely need a ton of insulating foam to seal up all the cracks this leaves, but it solves a niche issue and for that I am very thankful. The rubber feet pads are terrifyingly hard to press in and fall out almost immediately - also the spring loaded button stops for the arms are not particularly made the best - one refused to pop out no matter what I tried. Rest of the item seems very sturdily built. Like some other reviewers I have outside flush vinyl windows and no real good way to brace a heavier AC. The last AC I put in damaged the window due to its weight so I needed something to help with the bracing, but didnt want to fabricate my own wooden bracket or shove a 2x4 in my lawn. I set this flush with my inside frame, so the arms in front grab on the sides of the window sill - then used a ton of foam to seal up all the cracks. Not the prettiest but definitely is getting the job done so far.

I dont typically write reviews but I had to this time. I dred summer. Actually, I dred air conditioning install time. I have rigged up different contraptions over the years to act as makeshift platforms for my various air conditioners. We recently put in new windows and the problem on only got worse. Nothing to screw into and sudden doom awaiting me if I damaged the windows in any way. Until this year. This adjustable platform from TopShelf is...well...top shelf! Even how it was packaged in the box was professional and all about ease. Some assembly is required so put aside some time...such as a 2-3 minutes. Really. It was ready to put in my window in about 3 minutes after opening the box. I bought a couple for my various ACs. I spent maybe 5 minutes adjusting the first one to fit my window perfectly. After that, I immediately set all the others to the same pin locations when taking them out of the box. The ACs went in like a dream. I have so much extra time I decided to write this review. These are well worth the money. No tools needed. No dread of damaging the windows. Totally awesome!

This was very easy to install. My only complaint is it is expensive.

Impressed by sturdiness and ease of use. More expensive than many alternatives, but worth it for the strength and ease of application.