Interlocking Lead Bricks & Caves
Tongue-and-groove interlocking lead bricks with shoulder edges for vault walls and radiation cave construction.

Overview
Tongue-and-groove interlocking lead bricks with shoulder edges for vault walls and radiation cave construction.
Interlocking Lead Bricks for a Wide Range of Applications Interlocking lead bricks are commonly used for radiation shielding, often in healthcare facilities where X-rays are in operation, and in areas where radioactive materials are stored. They can be used to construct walls or to build lead caves, which are perfect for the containment of radiation.
The Ultimate Shielding Solution The tongues and grooves of Mayco’s interlocking lead bricks conjoin to form a tight seal, exponentially decreasing the chance of radiation leakage. Our interlocking bricks also feature a shoulder edge for stability, and they connect in every direction, including each brick’s sides, rows, corners, and the top and bottom if necessary. The result: a flawless, impenetrable structure constructed from the finest materials – the ultimate shielding solution.
Lead Bricks for Sale That Can Be Customized to Your Requirements We offer an assortment of lead brick designs that can be tailored to suit your individual project. In addition to stocking and customizing lead bricks for sale, we offer durable coating on all of our lead brick products. A coating can make handling safer and helps minimize lead dust when the brick is subject to wear and tear. Our customers’ projects entail varying degrees of lead exposure, so we offer various coating options, including epoxy and powder coats, to provide the right protection for every job.
Typical applications
Where this product is engineered to perform.
Linear accelerator (LINAC) radiation vault walls
Radiopharmaceutical hot cell construction and cave enclosures
Nuclear power plant maintenance and shielding baffles
Reconfigurable and temporary radiological work areas
Industries served
Product specifications
| Material | Pure Chemical Lead / ASTM B29 |
|---|---|
| Shielding Density | 11.34 g/cm³ (708 lbs/cu ft) |
| Purity | 99.94% pure lead minimum |
| Certifications | ISO 9001:2025 / Material test reports available |
| Standard Stock Size | ¾” x 4” x 12” — Approx. Weight: 15 lb |
| Standard Stock Size | 1” x 4” x 12” — Approx. Weight: 20 lb |
| Standard Stock Size | 1-1/2” x 4” x 12” — Approx. Weight: 30 lb |
| Standard Stock Size | 2” x 4” x 8” — Approx. Weight: 27 lb |
| Standard Stock Size | 2” x 4” x 12” — Approx. Weight: 40 lb |
| Standard Stock Size | 2-1/2” x 4” x 12” — Approx. Weight: 50 lb |
| Coating Options | Epoxy and powder coat available for safer handling and dust minimization |
Specifications subject to custom engineering and alloy options. Contact Mayco engineering for specific sizes, tolerances, and custom certifications.
Need a custom size, alloy, or configuration?
Mayco provides engineering support and design consultation — from small radiation shielding jobs to large ballast projects. Our team can help specify the right product, dimensions, and tolerances for your application.
Every Mayco product is manufactured in-house across our U.S. plants and backed by our ISO 9001 quality system.
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