Drywall Calculator

Project Settings

Select your measurement units and drywall specifications

Measurement Units

Surface Type

Drywall Thickness

Sheet Size

Room Dimensions

Enter the dimensions of your room

Room Length (feet)

Room Width (feet)

Ceiling Height (feet)

Number of Doors

Number of Windows

Door Width (feet)

Door Height (feet)

Window Width (feet)

Window Height (feet)

Installation Options

Choose which surfaces to include and waste allowance

Include Walls

Include Ceiling

Waste Allowance (%)

Drywall Requirements

Sheets Needed

Square Feet

Wall area:0 ft²

Ceiling area:0 ft²

Total area:0 ft²

Base sheets needed:0.0

Waste allowance:0 sheets (10%)

Total weight:0 lbs

Material Details

Drywall Specifications:

1/2" Drywall - 4' × 8'

32 sq ft per sheet

2.4 lbs per sq ft

Finishing Materials:

0.0

Gallons Joint Compound

Feet of Tape

Drywall Screws

Total Materials Summary

0 sheets • 0 lbs • 0.0 gal compound

Installation Guidelines

Drywall Thickness Guide:

1/4" Drywall

Curves, arches, repairs

1.2 lb/ft²

3/8" Drywall

Curves, arches, multiple layers

1.8 lb/ft²

1/2" Drywall

Standard residential walls/ceilings

2.4 lb/ft²

5/8" Drywall

Fire-rated, soundproofing, commercial

3 lb/ft²

Sheet Size Options:

4' × 8'

32 sq ft

4' × 12'

48 sq ft

4' × 16'

64 sq ft

Professional Tips:

• Always use 10-15% extra drywall for waste and mistakes
• Start with the ceiling before hanging walls
• Use proper screws: 1-1/4" for walls, 1-5/8" for ceilings
• Space screws 12-16" apart along edges, 16-24" in field
• Stagger seams by at least 4" on adjacent sheets
• Cut holes for outlets/switches before hanging
• Apply joint compound in thin, even coats
• Sand between coats for smooth finish
• Prime before painting for best results
• Allow proper drying time between coats