Joint Treatment, Firestop
Compounds, and Interior Finishing
Common joint treatment and interior finishing products include joint compound, drywall mud, and interior plastering.
Regardless of your project size or budget, L&W Supply is your trusted partner, with the necessary joint treatment and interior finishing products you need to complete your next project. Our local branches stock top brands of ready-mix joint compounds, setting compounds, primers, and more. With our large inventory of standard and specialty items, we’re prepared to meet your project’s unique requirements.
Some of the most popular Joint Treatment & Interior Finishing products we carry:
- Corner Beads, Trims, and Tape
- Drywall and Interior Finishing Accessories
- Drywall Finishing Trims
- Firestop Finishing Compounds
- Plastering Products and Systems
- Ready-Mix Joint Compounds
- Setting Compounds
- Textures and Primers (Walls and Ceilings)
Looking for a hard-to-find product or have a question?
Let our knowledgeable team help. As a leading national building supply distributor, we’re invested in delivering the products and service you need to succeed.
Brands We Carry
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Questions? We’ve got answers. Our team is here to help, from quotes to sourcing hard-to-find materials and handling warranties. We’re your construction partners.
Contact Your BranchManufacturer Pricing Updates
Stay up-to-date on price changes.
- National Gypsum (opens in a new tab) (January 19, 2026)
- Westpac (opens in a new tab) (April 7, 2025)
- Certainteed (opens in a new tab) (March 3, 2025)
What’s New
ABC Supply Co., Inc. Aligns L&W Supply and Town & Country Industries Under ABC Supply Brand
BELOIT, Wis. — February 26, 2026 — ABC Supply Co., Inc., the largest wholesale distributor of roofing and other select exterior and interior building products in North America, today announced a new naming structure for how its family of companies will be identified in the marketplace moving forward. The divisions will become: This alignment reinforces […]
See You in New Orleans: L&W Supply Is Heading to BUILD26
Contractors can connect with the team and explore tools that make day‑to‑day work easier BELOIT, Wis. — February 18, 2026 — L&W Supply, a nationwide distributor of interior building materials and construction supplies, is getting ready to meet contractors and industry professionals at AWCI’s BUILD26 Convention & Expo in New Orleans, March 15–18. Visitors stopping […]