I have a very steep driveway, and sometimes need to get something up the driveway that's too heavy to push. Like, no way you could push a motorcycle up into the garage. It's a 20% or more grade, maybe 30 ft long.
I'm considering mounting a little ATV winch to the back wall of the garage to help with this. The wall base is about 4.5 ft above the garage floor, it's a standard wood stud and drywall wall with 2x6 studs. The wall is fixe at the bottom to a concrete slab like any normal residential home (house is 20 years old FWIW), and it is maybe 9 ft high and attached to the upstairs floor above it.
I know the pullout strength of lags is about 300 lb so I figure I could attach a steel plate with the winch bolted to it across three studs with two lags in each and get 1800 lb or so pullout strength.
The question is, how much lateral load can the wall take?
I really don't want to pull the wall down. Realistically I might try to pull something up the driveway that weighs as much as 1300 lb, and on a wheeled cart or it has its own wheels (like a motorcycle) or in my little utility trailer, which is a 300 lb trailer with 1000lb max load. Doing the math, I don't think I would exceed 650 lb load on the wall. My gut tells me the wall will hold up just fine but I don't want to learn that I'm wrong the hard way. Most commonly it'd be stuff that goes in my steel utility cart that has a max load of 800 lb, like loading it with rocks. The immediate need is that I am going to be getting a very big tool box that's close to 700 lb empty. Pulling that up into the garage under human power is going to be a feat.
Anyone know how to calculate this?
I'm considering mounting a little ATV winch to the back wall of the garage to help with this. The wall base is about 4.5 ft above the garage floor, it's a standard wood stud and drywall wall with 2x6 studs. The wall is fixe at the bottom to a concrete slab like any normal residential home (house is 20 years old FWIW), and it is maybe 9 ft high and attached to the upstairs floor above it.
I know the pullout strength of lags is about 300 lb so I figure I could attach a steel plate with the winch bolted to it across three studs with two lags in each and get 1800 lb or so pullout strength.
The question is, how much lateral load can the wall take?
I really don't want to pull the wall down. Realistically I might try to pull something up the driveway that weighs as much as 1300 lb, and on a wheeled cart or it has its own wheels (like a motorcycle) or in my little utility trailer, which is a 300 lb trailer with 1000lb max load. Doing the math, I don't think I would exceed 650 lb load on the wall. My gut tells me the wall will hold up just fine but I don't want to learn that I'm wrong the hard way. Most commonly it'd be stuff that goes in my steel utility cart that has a max load of 800 lb, like loading it with rocks. The immediate need is that I am going to be getting a very big tool box that's close to 700 lb empty. Pulling that up into the garage under human power is going to be a feat.
Anyone know how to calculate this?