Dental clinic build-outs are among the most MEP-intensive commercial tenant improvements. Unlike general office spaces, dental operatories require sub-slab underground plumbing trenches, oil-less medical-grade compressed air, continuous dental vacuum lines, and radiation safety compliance.
Operatory Rough-In Requirements (Per Chair)
Each dental delivery operatory requires a dedicated floor junction box (utility box) recessed into the concrete slab containing:
- Dental Air Line: 3/8" or 1/2" Type L copper piped at 80-100 PSI from an oil-free dental compressor with desiccant dryer.
- Dental Vacuum Line: 1-1/2" to 2" Schedule 40 PVC or copper sloped at 1/4" per foot to the wet-ring or dry vacuum pump.
- Potable Water Supply: 1/2" copper equipped with master shutoff valve and backflow preventer.
- Drainage / Waste: 2" drain pipe tied to an amalgam separator meeting Texas Commission on Environmental Quality (TCEQ) wastewater discharge standards.
- Electrical & Low-Voltage: 120V quad receptacle plus conduit runs for chair controls, intraoral camera feeds, and network data.
Radiation Shielding (X-Ray & CBCT Rooms)
Rooms housing panoramic or cone-beam computed tomography (CBCT) imaging equipment mandate radiation shielding calculations by a licensed medical physicist. Typical requirements specify 1/16" lead-lined drywall (sheetrock) mounted with lead-headed screws and lead discs over electrical boxes up to 7 feet above finished floor.
Slab Trenching vs. Core Drilling:
In first-floor slab-on-grade spaces, saw-cutting and trenching concrete is standard ($35-$55 per linear foot). On multi-story medical buildings, sub-slab core drilling requires ground-penetrating radar (GPR) scanning to avoid cutting post-tensioned (PT) cables.