You will have to use a very sturdy piece of wood or some steel plating to reinforce the floor joists.
How to re enforce a floor to hold more weight.
Regardless of this weight difference though most standard floors have the strength to support a cast iron tub.
You must consider all of the weight the floor joists must be able to support.
While floors do need extra support when installing a cast iron tub in some instances such as in older homes you may choose to reinforce the floor prior to a tub s installation for safety.
A standard bathtub can hold between 40 and 60 gallons of water.
This is what the floor covering is attached to carpet tile etc.
Be sure to jot down your measurements and mark it on the diagram so you have a good record of where they go.
Floor deflection is common in older homes because the floor joists often are smaller or are spaced farther apart than the joists in modern homes.
The floor framing for bathtubs requires special attention.
Step 4 reinforce the floors.
Of course new homes also can have bouncy floors if the joists are approaching the maximum spanning distance for the weight they are supporting.
If the subfloor isn t strong enough this can cause a constant squeaking in the.
The sub floor usually plywood is then nailed to the top of the floor framework.
My two brothers and i weigh 800 lbs together and we jumped off the sofa onto my floor and it didn t break so i know that the floor can safely hold more than a 800 lb aquarium yes the dropped weight exerted a force greater than 800 pounds but it was a short term impact load.
Disaster waiting to happen.
Any weight placed on your floors must be supported by a subfloor whether the weight is the result of the floor tiles or floorboards laid over the subfloor or whether it s a heavy cast iron bathtub or floor safe.
A few definitions now and we can move on.
Shelves are designed to hold objects.
This is common in old houses and is usually more of a nuisance than a safety issue.
Dead load is the weight of everything that consists in the raised floor such as the joists walls piping duct work etc.
If the floor is sagging visibly in the middle or is very bouncy you may want to reinforce the floor to eliminate the sag and reduce the bounciness for example dishes rattling in a cabinet when you walk by.
Too much weight coupled with a flimsy construction can lead to sagging in the middle of the.