Built With Foam Wall Flattening Shim Kit
Flatten uneven shower walls with less guesswork and less wasted material.
Uneven studs and out-of-plumb framing can slow shower installation before the first tile is set. The Built With Foam Wall Flattening Shim Kit provides a repeatable way to correct framing irregularities before installing compatible foam shower boards. Measure the correction needed and select from seven color-coded foam shim thicknesses rather than repeatedly cutting improvised spacers.
Each Original Foam Shim Kit includes over 900 foam shims in seven thicknesses and a depth gauge. A kit typically covers approximately 3–5 showers, depending on framing conditions.
Why Choose Built With Foam Wall Shims?
- Less prep work: Select predetermined shim thicknesses instead of repeatedly cutting makeshift spacers.
- Less material waste: Use the thickness needed instead of building up multiple layers of scrap material.
- Flatter shower walls: Correct recessed or uneven framing before installing foam shower boards.
- Measure before installation: The included depth gauge helps identify the appropriate thickness.
- Easy identification: Seven color-coded sizes range from 1/16" to 1/2".
- Refillable system: Purchase individual Original Foam shim thicknesses as needed.
What's Included in the Built With Foam Shim Kit?
- Over 900 foam wall shims
- Seven color-coded thicknesses
- One Built With Foam depth gauge
- Approximate coverage: 3–5 showers, depending on framing
Foam Shim Thickness Chart
| Color | Thickness |
|---|---|
| White | 1/16" |
| Red | 1/8" |
| Yellow | 3/16" |
| Green | 1/4" |
| Blue | 5/16" |
| Plum | 3/8" |
| Black | 1/2" |
How to Install Built With Foam Wall Shims
- Inspect the framing: Find bowed studs, recessed areas and inconsistent wall planes.
- Measure: Use the included depth gauge to determine the thickness required at each location.
- Mark: Identify each shim location and the corresponding size or color.
- Attach: Position the foam shims using compatible construction adhesive according to the manufacturer's instructions. Built With Foam identifies Loctite PL 3X Premium as a preferred adhesive; confirm compatibility with your materials.
- Verify: Recheck flatness, plumb and alignment before installing the foam shower boards.
See the existing Built With Foam installation video on this product page for a visual demonstration. Always follow the selected foam shower-board and adhesive manufacturers' installation requirements.
Built With Foam Shims vs. Wet Shimming
Built With Foam shims provide predetermined thicknesses attached to framing before wall board installation. Wet shimming uses an approved setting material during board installation where permitted. Which approach is appropriate depends on the chosen shower-board system; do not assume that either method is approved for every board.
Frequently Asked Questions
How do you attach Built With Foam shims to studs?
Measure and mark the locations, then attach the selected foam shims with a compatible construction adhesive. Built With Foam identifies Loctite PL 3X Premium as a preferred option. Follow the manufacturer's installation directions.
How many shims come in the kit?
Over 900 shims in seven thicknesses, plus a depth gauge.
How many showers can one kit cover?
Approximately 3–5 showers, depending on framing conditions and the corrections required.
Can Built With Foam shims be used with foam shower boards?
The Original Foam Shim Kit is intended for foam shower board preparation. Check the specific shower-board manufacturer's installation requirements for compatibility.
Can these shims replace wet shimming?
They offer another way to correct wall framing before board installation. Whether they replace or complement wet shimming depends on the approved installation method for your shower-board system.
Does the kit include a depth gauge?
Yes, one depth gauge is included.
Can I buy replacement shims?
Yes. Built With Foam Original Shim Refills are sold separately by thickness. An additional depth gauge is also available.
How are Original and Pro shim kits different?
This Original kit uses foam shims for foam shower board preparation. The separate Pro system uses rigid 9000 PSI honeycomb plastic for harder substrates such as cement board and drywall. Follow manufacturer guidance when selecting a system.
Prepare Flatter Walls Before You Tile
Use color-coded thicknesses and the included depth gauge to make shower framing adjustments more consistent. Explore the Built With Foam product family for matching accessories and refills.
