camper support
Do you guys think the plywood jigsaw stand will support all the weight of the camper so I can do major repair on camper jacks? I will need to put the weight of the camper on them for a week or two. My...
Forum Discussion
Assuming the plywood is 3/4" thick and each of the 4 pcs is 4' long, that spreads the load out on something like 12sqin of wood.
The first google hit tells me wood (altho this is for solid wood) compressive strength is at least 4000PSI. So that arrangement in solid wood would hold a 48,000lb camper before failing in compression. Even if plywood is half of solid wood's strength, you still have a wide safety margin.
The half lap joints have to fit snuggly enough to keep the sections vertical. A sloppy fit which allows the "X" members to lean away from vertical will change the load and failure mode.
The first google hit tells me wood (altho this is for solid wood) compressive strength is at least 4000PSI. So that arrangement in solid wood would hold a 48,000lb camper before failing in compression. Even if plywood is half of solid wood's strength, you still have a wide safety margin.
The half lap joints have to fit snuggly enough to keep the sections vertical. A sloppy fit which allows the "X" members to lean away from vertical will change the load and failure mode.
