Foamboard insulation - $100 (Pullman)

condition: excellent

make / manufacturer: Styrofoam

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I have 3 sheets of precut Styrofoam Brand ST-100 Scoreboard (2-inch, 4' x 8'). I cut them to insulate my 2-car garage door (see pictures). ST-100 is a rigid extruded polystyrene (XPS) foam insulation board that delivers an R-5 thermal rating per inch (R-10 total for 2-inch thickness) and features a gray, moisture-resistant closed-cell structure ideal for exterior cavity walls and foundations.
Key Features Built-in Score Lines: Scored longitudinally on 16-inch and 24-inch centers to easily snap, size, and fit standard stud spacings.
High Compressive Strength: Typically rated at 25 PSI, with 40 PSI options available for heavy-duty applications.
Moisture Resistant: Exceptional water and water vapor resistance prevents water pickup, retaining a long-term, stable R-value.
Typical Specifications
Thickness: 2 inches
Dimensions: 4 feet x 8 feet
Material Type: Extruded Polystyrene (XPS)Application: Exterior walls, commercial foundations, cavity walls, and floor slabs.ST100 2" x 4' x 8' 25PSI Scoreboard Styrofoam Insulation
Styrofoam Brand Scoreboard Extruded Polystyrene (XPS) Foam Insulation is an extruded polystyrene foam insulation board that is scored longitudinally on 16 and 24 centers, making it easy to size to commonly used widths, cut and install. It has excellent insulating characteristics, high resistance to water and water vapor, exceptional compressive strength and long-term durability.
• Moisture resistant
• Impact resistant
• Excellent adhesion

The foamboard sheets sell new for about $ 60 each. You can have the whole thing for $ 100 (cash only). Item is in Pullman.

post id: 7934860055

posted: 2026-05-16 22:07

updated: 2026-05-21 21:25

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Foamboard insulation - furniture - by owner - sale - craigslist

I have 3 sheets of precut Styrofoam Brand ST-100 Scoreboard (2-inch, 4' x 8'). I cut them to insulate my 2-car garage door (see pictures). ST-100 is a rigid extruded polystyrene (XPS) foam...