You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings.
How to make a level floor for barn.
Here s a look at the types of flooring found in horse s stables.
If the area is very large use a long straight 2 in 4 in 5 1 cm 10 2 cm board and set your level on top of it.
Place a length of pipe rebar or wooden stake securely into the ground.
You may wish to have one type of flooring for aisles and another in the stalls.
Floors are rarely perfectly level.
If the floor is uneven lift up the board until it is level so you ll know how much flooring compound you ll need to even it out.
Lay a long level downhill on the floor with one end of the level on the level part of the floor and the other end at the lowest point.
Set a designated elevation to use as a guide to level the area.
It is essential that you do not remove the marker until the ground leveling is complete.
It s solid and won t settle so you won t have to pull up mats and re level the floors every once in a while as you do with porous flooring like clay.
The type of floor you will choose for a new barn will depend on the existing natural soil what materials are available to you and your budget.
On the top side of the floor another fix it idea to lay down new hardwood over the existing floor.
Mark the height you want your floor with highly visible ribbon paint or marker.
A plywood subfloor will bridge any minor waves in the existing floor and leveling compound would help too.