The plywood will help it feel like a solid gym floor like there s no carpet under it at all.
How to layer plywood and a stall mat.
Screw the final pieces of rubber in place.
It is assumed the matting will be a single layer of horse stall matting.
Below describes the planned construction method.
For a home gym over a carpeted floor put down a layer of 3 4 plywood and stall mats on top of that as discussed above regarding stall mats.
I could do a 1 2 plywood subfloor for the entire gym space for about 150 and then it would be level or i could just put anywhere from 1 2 to 1 5 only under the squat rack but i don t know how annoying that difference in elevation would be if the rest of the space is only a single layer of 3 4 stall mats from tsc.
The sub floor is concrete.
The designers plan is to have the plywood be seamless and flat into the floor that is completely covered by horse stall mat.
Continue drilling screws down the length of the mat every 5 75 inches.
This is much like some cf gyms ive seen.
Side by side with the plywood.
High pile carpet would still be an issue but typical carpet is fine.
I ve considered adding plywood for a proper platform but honestly if a stall mat can handle a 2 000 pound horse i m not sure what you gain by plywood.
I have basement gym and it s basically a regular stall mat over concrete.
Using a straight edge measure and mark the rubber mats.
I used wood screws and just sunk them a touch below the surface level of the mats.
I mean honestly i don t know but it is so damn dense i don t see feel or have any signs of it giving.
Two 3 4 layers of osb topped with stall mats and 3 4 maple or other hardwood ply.
No movement no complaints.
Coat the top layer of wood with linseed oil then a few coats of polyurethane.
Use your power drill to screw the stall mats to the 4 x 2 pieces of plywood with 1 25 wood screws.
Score the rubber mat with a box cutter or cut it with a reciprocating saw.
First drill the screws into the 4 corners of each mat leaving about 1 from the edges.
Measure the distance from the plywood to the edge of the osb on each side.