Construction MEP Cost Calculator

MEP is 18–32% of new construction cost — granular sub-trade pricing.

Building sq ft

Mechanical $/sf

Electrical $/sf

Plumbing $/sf

Fire sprinkler $/sf

Low voltage $/sf

Total MEP

$540,000

Total $/sf

$45

MEP share estimate

0.3%

How the math works

Total $/sf = M + E + P + fire + low-voltage. Total = sq ft × total $/sf.

12,000 × ($16 + $12 + $8 + $5 + $4) = 12,000 × $45 = $540,000 MEP.

How to Use

Enter building sq ft.
Enter mechanical $/sf.
Enter electrical $/sf.
Enter plumbing $/sf.
Enter fire sprinkler $/sf.
Enter low voltage $/sf.
Read total mep.

Frequently Asked Questions

MEP cost split?

Mechanical (HVAC): $8–22/sf residential, $12–35/sf commercial. Electrical: $5–14/sf residential, $8–25/sf commercial. Plumbing: $4–12/sf residential, $6–18/sf commercial. Fire protection (sprinkler): $3–8/sf required commercial. Low voltage (data, security, AV): $2–10/sf. Building type drives major variance: lab/data center MEP can be 50%+ of cost; warehouse 8–12%. Energy code (IECC, T24): 5–15% premium on baseline MEP.

How does this impact project budget?

Construction budgets layer hard costs (50–65%), soft costs (15–25%), financing (5–10%), contingency (5–10%), and developer fee (3–5%). Schedule risk often equals or exceeds cost risk — every month delay carries carry cost (interest, real estate tax, insurance, opportunity cost) of 0.5–1.5% of project budget. This calculator quantifies one cost component.

Owner-controlled vs GMP vs CM-at-risk?

Lump sum/GMP: contractor takes risk above guaranteed maximum price, owner pays for change orders. CM-at-risk: open book, fee + GMP, more transparent. Construction management: agent for owner, GC subcontracted directly. Design-build: single accountability, faster but less price competition. Match delivery method to project complexity and owner sophistication.

Schedule and cost contingency?

Standard contingency: 10% of hard cost for entitlement, 5–8% for construction. Schedule contingency: 60–90 days buffer past target completion. Force majeure provisions: weather, material lead time, labor strike, permit delay. Track via critical path method (CPM) schedule. Major lender draws contingent on schedule + cost variance to budget remaining within 5%.