United States Gypsum Co.

Please note: We are a wholesale-only supplier and proudly serve licensed HVACR contractors. We do not sell to the general public. Johnstone Supply Chicago is a leading HVAC/R Wholesale Distributor with access to over 70,000 locally stocked products and inventory so you can get it same or next day in most cases. Our product selection is continually growing to meet the needs of HVACR contractors to ensure we have the best brands and technology. Plus, our relationships with hundreds of the industry's top manufacturers give you access to a million special order parts. From equipment, to parts, to supplies you can be confident Johnstone has what you need today. Johnstone Supply: Making it Easier to do Business.

Rockfon provides a wide range of ceiling tiles and panels for commercial interiors. Our product lines include stone wool acoustic tiles designed for sound absorption and fire performance, metal ceiling panels offering design flexibility and durability, and grid suspension systems for secure and efficient installation. Rockfon products are used in offices, education, healthcare, retail, data centers, airports, and other commercial spaces.