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.
- Westpac (opens in a new tab) (April 7, 2025)
- Certainteed (opens in a new tab) (March 3, 2025)
- CertainTeed (opens in a new tab) (February 10, 2025)
What’s New
Branch Location Inventory Closing Schedule
The branches listed below will be closed on the following days to complete a full inventory. Each branch will return to their regular hours the following business day. Check back as new locations may be added.
L&W Supply Opens New Location in Medford, Oregon
Isai Molina to lead the new branch serving Southern Oregon and Northern California BELOIT, WI — August 20, 2025 — L&W Supply, a nationwide distributor of interior building materials and construction supplies, is proud to announce the opening of its newest branch in Medford, Oregon, located at 2087 Lars Way. This marks the company’s fifth location in Oregon, […]