Measure and mark plywood to create a square or rectangle of a size suitable for your space. Larger rooms will need larger panels than small rooms. For a normal living room-sized area, panels should be about 2-by-2 or 2-by-4 feet. Large practice spaces can accomodate 4-by-4-foot squares or 4-by-8-foot rectangles.
Cut plywood according to your measurements.
Measure carpet to be 6 inches longer than cut plywood on each side.
Place carpet on a firm suface pile side down. Cut carpet with utility knife according to your measurements.
Center plywood square on top of carpet square.
Staple edges of carpet onto the plywood. Place staples about 3 inches apart.
Screw the finished panel to the wall. Place screws in each corner, then every 6 inches. Screw into studs, not just sheetrock, if possible.
Repeat steps 1 through 7 as needed.