Pre-Assembled SpringStep IV
Springstep IV is a nominal 2’ x 2’ random strand board made with a resin that resists moisture. It is available in different versions:
Springstep IV-A:
Unassembled with ½” thick foam sheeting (for firm floor and sound reduction)
Springstep IV-B:
Unassembled with 2” foam cubes (for increased resiliency)*
CONSTRUCTION
Materials needed:
1. Stagestep Springstep IV panels.
2. Vapor Barrier (choice of plastic sheeting such as Stagestep vapor barrier with reinforcement scrim laminated between polyethylene layers or our liquid vapor barrier, Stagestep Bone Dry.
3. Moisture proof tape to tape vapor barrier at seams if using plastic sheeting.
4. Vented wall base. (Optional)
5. Transition pieces or ramps. (Optional)
6. Tools:Â Rubber mallet or hammer, 2 x 4 block, rotary saw to cut perimeter panels.
PROCESS
1. Seal concrete slab against moisture.
2. Press or tap boards into each other making sure to stagger seams. Can use mallet and 2 x 4 blocks on tongue side of panel.
3. Every other row should begin with a full board. Rows should alternate starting with full boards and half boards as illustrated.
4. Leave 1/2” gap at walls to allow air to circulate and floor to move.
5. Floor is complete when you reach the walls or the desired size.
6. Vented wall base and transition pieces/ramps are available. The average two-person crew can complete 125-150 sq. ft. per hour, 1,000-1,200 sq. ft. per day.
Note:
A vapor barrier over your slab is required with all subfloors. The use of Stagestep vapor barrier, 8 mil is mandatory when installing our products over, above, on, or below grade concrete. Failure to do so will void all warranties.
*Resiliency is the measurement of “spring.”
Increased resiliency = more “spring.” Less
resiliency = more firm. Shock absorption of all
SSIV products is virtually the same and helps to prevent dance and sport related impact injuries.




SpringStep IV-A Subfloor (for firm floor and sound reduction)
CONSTRUCTION
Materials needed:
1. Stagestep Springstep IV panels.
2. Stagestep 1/2” foam sheeting (rolls come in 5’ width by your custom length up to 100’).Â
3. Vapor barrier (choice of plastic sheeting such as Stagestep vapor barrier with reinforcement scrim laminated between polyethylene layers or Stagestep supplied liquid vapor barrier Bone Dry.Â
4. Moisture proof tape to tape at foam seams and also tape vapor barrier at seams if using plastic sheeting. Â
5. Vented wall base. (Optional)Â
6. Transition pieces or ramps. (Optional)Â
7. Tools:Â Rubber mallet or hammer, 2 x 4 block, rotary saw to cut perimeter panels.
PROCESS
1. Seal concrete slab against moisture.
2. Roll out foam sheeting to conform to slab.
3. Tape seams of foam.
4. Press or tap boards into each other making sure to stagger seams. Can use mallet and 2 x 4 blocks on tongue side of panel.
5. Every other row should begin with a full board. Rows should alternate starting with full boards and half boards as illustrated.
6. Leave 1/2” gap at walls to allow air to circulate and floor to move.
7. Floor is complete when you reach the walls or the desired size.
8. Vented wall base and transition pieces/ramps are available.
*Resiliency is the measurement of “spring.”
SPRINGSTEP IV-B Subfloor (for increased resiliency)*
CONSTRUCTION
Materials needed:
1. Stagestep Springstep IV panels.
2. Stagestep 2” high density foam cubes. 2” foam cubes and Springstep IV panels will ship in separate packages.
3. Contact cement or liquid nails (To be supplied locally but not needed if using peel and stick cubes or blocks).Â
4. Vapor barrier (choice of plastic sheeting such as Stagestep vapor barrier with reinforcement scrim laminated between polyethylene layers or Stagestep supplied liquid vapor barrier Bone Dry.
5. Vented wall base. (Optional)
6. Transition pieces or ramps. (Optional)
7. Tools:Â Rubber mallet or hammer, 2 x 4 block, rotary saw to cut perimeter panels.
PROCESS
1. Seal concrete slab against moisture.
2. Glue foam cubes with liquid nail/contact adhesive or “peel and stick” to bottom of SSIV panel. Shipped bottom-side up. Bottom-side is typically lighter in color. (See image 1 for foam layout.) After attaching foam cubes flip right-side up.
3. Press or tap boards into each other making sure to stagger seams. Can use mallet and 2 x 4 blocks on tongue side of panel.
4. Every other row should begin with a full board. Rows should alternate starting with full boards and half boards as illustrated. (See image 2 and 3.)
5. Leave 1/2” gap at walls to allow air to circulate and floor to move.
6. Floor is complete when you reach the walls or have achieved the desired size.
7. Vented wall base and transition pieces/ramps are available.
After foam cubes have been attached to the panels, the average two-person crew can complete 125-150 sq. ft. per hour, 1,000-1,200 sq. ft. per day.
The use of Stagestep vapor barrier, 8 mil or better plastic barrier, is mandatory when installing our products over, above, on, or below grade concrete. Failure to do so will void all warranties.


