Products

Support your piping systems with durable hangers and clamps designed for all types of installations. This category includes beam clamps, riser clamps, clevis hangers, and more. Behringer clamps provide dependable vibration isolation and pipe alignment.

Our strut systems offer versatile solutions for mounting, bracing, and supporting mechanical components. Choose from a wide range of strut sizes, clamps, and accessories. Concrete inserts provide secure anchoring for structural applications.

Get your carpentry job done right with our reliable selection of lumber, nails, joist hangers, and blades. Perfect for framing, finishing, and structural support. Durable materials meet professional-grade standards.

Protect your building with trusted firestop solutions designed to block the spread of flames and smoke. Ideal for mechanical, electrical, and plumbing penetrations. Ensure safety and compliance with fire codes.

Easily reach concealed mechanical systems with durable access panels. Designed for walls and ceilings, these panels offer a clean and secure solution for maintenance access. Available in multiple sizes and finishes.

Our steel selection includes channel iron, angle iron, and flat plates for structural and fabrication needs. Ideal for framing, bracing, and custom metalwork. Built for durability in demanding environments.

Stay protected on the job site with essential safety gear, including vests, gloves, and eye/ear protection. Designed for compliance and comfort. Reliable protection for daily construction hazards.

MDJ Supply provides a reliable range of copper tubing and steel pipe for plumbing and mechanical installations. Our valves and fittings ensure secure flow control and leak-free connections. Built for commercial-grade performance.

We stock a wide variety of fasteners in multiple finishes, including plain, zinc-coated, hot-dip galvanized (HDG), and stainless steel. Choose from bolts, nuts, washers, rod, and coupling nuts. Suitable for all construction and mechanical needs.

Label your piping systems clearly with pipe markers and valve tags. Ensure quick identification and improve workplace safety and maintenance. Available in various colors, sizes, and materials.

Install piping through walls and slabs with waterstop, tin, plastic sleeves, or link seals. Our pipe sleeves help prevent leaks and protect pipes from movement and vibration. A must for penetrations in concrete and masonry.

Keep your job site or facility clean and stocked with our janitorial essentials, including paper products, bottled water, and cleaners. Ideal for daily maintenance and worker support. Reliable, bulk-available supplies.

Secure your installations into concrete or masonry with high-strength anchors, including drop-ins, wedge anchors, and epoxy systems. We also carry specialty fasteners like Sammy, Vertigo, and Sammy X-Press. Ideal for structural and overhead applications.