Disclaimer : this be the only ceiling mount I have ever buy or use . I have install a lot of thing in my life and in my house , but this be the only projector mount . my impression be that it be as easy or slightly easier than average . you ideally want two people , because it help with : 1 . make sure the pilot hole you be drill into the ceiling joist be all around straight from all view angle 2 . stand beneath the one on the ladder , support the projector from below when it be finally be attach , because it very likely will slip and fall a little at some point , and it be amazing how useless this mount be with a smash projector 3 . understand the slightly too cryptic instruction other random advice : boy oh boy be joist skinnier than wall stud . and you do not want to screw into the edge of one and only discover this when the mount take the weight . we be lucky - we have two test hole which miss the joist , but by insert a large paperclip bent in a c-shape into each and spin they , we be able to tell right away that it be exactly in between the two . I have three problem with this guy . 1 . I install it on a 19 pound Panasonic PTAR100U , a projector I mostly love , especially for its excellent brightness . I try use the extend leg to mount it off-center from the joist . even with the 40 pound limit and the `` no-slip '' lock ring lock , the unit tilted toward the heavy side and there be no way around it . have to set up the leg so the joist and mount be directly above the center of the unit . the instruction do not talk about this . 2 . relatedly : even when balance , even with the `` no-slip '' ring lock , more than the tiniest nudge will tilt the projector in any direction . I call v7 and this be apparently just how the mount work . I be go to have to install some kind of additional stabilizer , like glue , or velcro , or a level that I can use to make sure I be fix it right when it tip again . every time I focus my projector or change the zoom , the image end up shift off the screen somewhere . I zoom out for 1:2.35 widescreen - totally fun with a 2.35 screen and a projector this bright ! but use the joystick to center the image , the resistance in the projector be like sixty time greater than the `` no-slip '' ring , so it be quite harrowing . 3 . it be only available in black , and the projector and ceiling be white . maybe I be crazy , but I think most projector be not black anymore , and most ceiling be some kind of white , so ... maybe that be part of why it be so affordable . all in all , it keep my projector close to the ceiling and it be reasonably easy to install , and it definitely allow for tilt correction more than some mount might -lrb- too much for I ! -rrb- , so it may be ok for you .