Plaster and drywall are common interior wall finishes with distinct price profiles. The overall cost depends on material, labor, wall size, and regional rates, with plaster typically costing more upfront but sometimes offering longevity advantages. Cost differences hinge on installation complexity, room type, and finishing level. Assumptions: region, wall area, thickness, and finish grade.

Item	Low	Average	High	Notes
Material	$1.50/sq ft	$2.50-$3.50/sq ft	$5.00+/sq ft	Plaster generally higher; drywall cheaper per sq ft.
Labor	$1.50/sq ft	$3.50-$6.00/sq ft	$8.00+/sq ft	Installation time varies by method.
Finishing	$0.50/sq ft	$1.50-$3.00/sq ft	$5.00+/sq ft	Skim coats, texturing, and painting factor in.
Delivery/Disposal	$0.10-$0.50/sq ft	$0.30-$1.00/sq ft	$2.00/sq ft	Waste handling varies by region.
Subtotal cost range	$3.10/sq ft	$7.30-$10.50/sq ft	$15.00+/sq ft	Based on typical finishes.

Overview Of Costs

Pricing typically falls into wide ranges,” with plaster projects often 20–50% higher than drywall for similar wall areas. A basic plaster skim and paint job can run $8.00-$12.00 per square foot, while a standard drywall install plus finish averages $4.00-$7.50 per square foot.

Labor intensity, substrate condition, and required moisture resistance drive most deltas. For small renovations, expect higher per-square-foot costs due to mobilization, while larger walls amortize fixed setup across more area. Labor hours per 100 sq ft commonly range from 10–18 hours for plaster versus 6–12 hours for drywall.

Cost Breakdown

Breakdown shows major cost centers and typical shares. A mid-range plaster job often weighs heavier on materials and labor due to lime or gypsum mixes and hand finishing, whereas drywall emphasizes panels, fasteners, and tape/mud work.

Category	Low	Average	High	Notes
Materials	$1.50/sq ft	$2.50-$3.50/sq ft	$5.00+/sq ft	Plaster mix, lath, or drywall panels.
Labor	$1.50/sq ft	$3.50-$6.00/sq ft	$8.00+/sq ft	Skill level and finishing standard matter.
Finishing & Painting	$0.50/sq ft	$1.50-$3.00/sq ft	$5.00+/sq ft	Texture, primer, topcoat included.
Permits & Inspections	$0.20/sq ft	$0.50-$1.50/sq ft	$3.00+/sq ft	May apply in remodels or structural changes.
Delivery/Disposal	$0.10/sq ft	$0.30-$1.00/sq ft	$2.00/sq ft	Waste handling varies by area.
Subtotal	$3.30/sq ft	$8.30-$12.50/sq ft	$18.00+/sq ft	Assumes standard finishes.

What Drives Price

Project drivers include material choice, wall condition, and finish level. For plaster, factors include lath availability, plaster type (traditional lime vs cement), and level of hand finishing. For drywall, important drivers are sheet thickness, joint compound method (paper vs fiberglass tape), and whether soundproofing or fire-rated assemblies are required.

Regional labor rates can alter totals by ±10–25%. High-humidity climates often push moisture-resistant drywall and specialized coatings, raising costs. data-formula=”labor_hours × hourly_rate”> A room with irregular walls or moisture exposure may require extra prep, affecting both materials and labor.

Ways To Save

Selecting standard finishes and minimizing custom textures reduces costs. Drywall generally offers more budget-friendly options and faster install, while plaster may justify extra expense through durability and retrofitting in historic homes. Consider reusing existing studs or lath if feasible, batching work to reduce mobilization, and requesting fixed-price quotes to avoid scope creep.

Ask for a detailed scope with per-square-foot pricing for materials, labor, and finishing, plus a line item for any potential waste or disposal fees. Assumptions: standard room size; typical closet and hallway details included.

Regional Price Differences

Prices vary across markets, with urban centers higher than rural areas. In the Northeast, plaster can be 5–15% pricier than the national average due to specialty trades. The South shows drywall pricing near or slightly above the national midrange because of labor variability. The Midwest often achieves lower overall costs due to competitive crews, though material costs can swing with supply chains.

Labor & Installation Time

Labor time strongly impacts total cost, especially for plaster. Drywall installation commonly requires 6–12 hours per 1,000 sq ft plus finishing, while plaster can demand 12–18 hours per 1,000 sq ft or more, depending on texture and cure times. Contractors may charge by square foot or by project, and a crew size can shift expenses by ±20%.

For a 1,000 sq ft space: drywall with standard finish might run $4,000-$7,500 total, whereas plaster could be $8,000-$14,000 depending on finish and substrate readiness. Assumptions: standard ceilings, no structural changes.

Additional & Hidden Costs

Hidden costs include prep work, repairs, and coatings beyond the finish. Cracks, water damage, or mold require remediation, which adds to both material and labor. If existing walls require removal of old finishes or mold remediation, expect higher totals. Painting, priming, and sealing are often quoted separately but are essential to the finished look.

Delivery of materials, equipment rental, and disposal fees can add $0.20-$2.00 per sq ft depending on location and waste handling rules. Assumptions: no seismic retrofits or lead paint concerns.

Real-World Pricing Examples

Three scenario cards illustrate typical project ranges.

Assumptions: region, specs, labor hours.