Construction Finish Cost Calculator

Finishes are the last 18–28% of project cost and most variable by quality tier.

Building sq ft

Drywall + paint $/sf

Flooring $/sf

Doors + trim $/sf

Casework $/sf

Misc finishes $/sf

Total finishes

$600,000

Total $/sf

$50

Tier estimate

Mid-tier

How the math works

Total = sq ft × ($/sf drywall + flooring + doors/trim + casework + misc).

12,000 × $50/sf = $600,000 finish cost. $50/sf = mid-tier.

How to Use

Enter building sq ft.
Enter drywall + paint $/sf.
Enter flooring $/sf.
Enter doors + trim $/sf.
Enter casework $/sf.
Enter misc finishes $/sf.
Read total finishes.

Frequently Asked Questions

Finish quality tier costs?

Builder-grade: $30–55/sf finishes (drywall texture, basic paint, LVT/carpet, hollow-core doors, basic trim). Mid-tier: $50–95/sf (level 4 drywall, premium paint, hardwood/tile, panel doors, crown molding). Luxury: $90–200/sf (level 5 drywall, custom millwork, exotic stone/wood, solid-core doors, designer fixtures). Casework cost driver: 2–5x quality tier multiplier. Add 20–30% for high-design custom finishes. Track per-room finish allowance for clarity.

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%.