Drywall—also known as sheetrock, wallboard, or plasterboard—has become a staple in modern construction. Whether you’re finishing a basement, remodelling a room, or repairing ceiling damage, understanding the types, uses, and costs of drywall is essential.
Let’s dive deep into this complete drywall guide with Estate Orbits.
What is Drywall?
Drywall is a construction material made from a core of gypsum (calcium sulfate dihydrate) sandwiched between layers of paper. It is used to create walls and ceilings quickly and economically.
Drywall vs. Sheetrock – Is There a Difference?
“Drywall” is the generic term, while “Sheetrock” is a trademarked brand of drywall produced by USG Corporation. In practice, they are often used interchangeably, although Sheetrock may carry specific quality standards.
Benefits of Using Drywall in Modern Construction
- Quick and easy installation
- Cost-effective wall solution
- Fire-resistant options
- Smooth finish for painting or wallpaper
- Easier to repair than plaster walls
Types of Drywall Available
Let’s explore the various types of drywall you can choose based on application, location, and environmental factors.
Standard Drywall (White Board)
The most common type—used for most interior walls and ceilings where moisture is not a concern.
Moisture-Resistant Drywall (Green Board)
Ideal for bathrooms, kitchens, and laundry rooms. Its water-resistant core helps prevent mildew growth.
Fire-Resistant Drywall (Type X)
Has special fibres to increase fire resistance—commonly used in garages, apartment buildings, and areas near furnaces.
Soundproof Drywall
Constructed with additional layers of sound-damping materials. Best for bedrooms, home studios, or shared walls in apartments.
Mould-Resistant Drywall (Purple Board)
Offers superior protection against mould and mildew, ideal for basements or humid climates.
Level 5 Drywall Finish
This is the highest quality drywall finish. It involves multiple coats, sanding, and a skim coat to achieve a completely smooth, paint-ready surface, often used in luxury interiors.
Common Uses of Drywall
Drywall for Ceilings
Drywall is often used to create smooth ceiling surfaces. Thicker boards (typically 5/8″) are preferred for this to reduce sagging.
Suspended Drywall Ceiling vs. Drop Ceiling
- Suspended Drywall Ceiling: Offers a seamless look and better acoustics, but is harder to access for wiring.
- Drop Ceiling (Grid Type): Allows easy access for repairs and utilities, popular in commercial spaces.
Basement and Garage Wall Applications
Moisture- and mould-resistant drywall is essential in basements and garages. Proper sealing and insulation are key for longevity.
Drywall Installation Process
Installing drywall might look easy, but it requires precision and the right tools.
Tools Needed for Installation
- T-square and utility knife
- Drywall saw
- Power drill/screw gun
- Drywall screws or nails
- Drywall tape and joint compound
- Sanding sponge or sander
Step-by-Step Installation Guide
Measure and Cut Drywall
Use a T-square and utility knife.
Attach to Studs
Use screws, starting from the centre out.
Apply Tape and Compound
Cover seams with drywall tape and apply joint compound.
Sand Smooth
Once dry, sand to a level finish.
Prime and Paint
Use gesso or drywall primer before painting.
What is Gesso and When Is It Used?
Gesso is a primer applied before painting drywall. It seals the surface, making it smoother and ensuring better paint adhesion.Drywall Pricing and Installation Cost
Drywall Cost Per Square Foot
- Material Only: ₹15 to ₹30 per sq. ft. (India) or $0.40 to $0.80 (USA)
- With Installation: ₹35 to ₹60 per sq. ft. or $1.50 to $3.00 per sq. ft.
Sheetrock Price Comparison
Sheetrock-branded boards may cost slightly more due to brand assurance and quality, usually ₹5-₹10 more per sheet.
Labour Charges for Drywall Installation
Labour varies by region and project complexity. Average labour cost:
- India: ₹15–₹25 per sq. ft.
- USA: $1–$2 per sq. ft.
Budgeting Tips for Homeowners
Do prep work (like clearing space) yourself to save labour time.
Buy in bulk for discounts.
Use standard-size boards to minimise cuts and waste.
Drywall Repair & Maintenance
Even high-quality drywall can suffer from holes, water damage, or cracks over time.
Fixing a Hole in the Ceiling or Wall
- For small holes: Use a patch kit or mesh patch with compound.
- For large holes: Cut out the damaged section and replace it with a new piece.
Drywall Water Damage Repair
- Cut out water-soaked areas.
- Replace with mould-resistant drywall.
- Seal and paint once dry.
How to Patch and Tape Drywall
- Apply a patch over the hole.
- Cover with drywall tape.
- Apply joint compound, sand, and repaint.
DIY vs. Hiring a Professional
DIY drywall repair is doable for small tasks. But for large ceiling repairs or water damage fixes, hiring a pro ensures safety and finish quality.
Drywall Repair Cost Breakdown
- Small patch: ₹200–₹500 ($10–$30)
- Large hole or ceiling fix: ₹800–₹2000 ($50–$200)
- Water damage: ₹1500+ ($100+ depending on area)
Tips for Long-lasting Drywall Performance
Choosing the Right Drywall Tape
- Paper tape: Great for straight seams.
- Mesh tape: Better for patch repairs or curved surfaces.
Painting and Sealing Drywall
- Use a quality primer (gesso) before applying colour coats.
- Matte or satin finish paints help hide imperfections.
Avoiding Common Mistakes During Installation
- Overdriving screws into drywall
- Skipping the primer before painting
- Not sealing corners properly
Drywall is more than just a wall covering—it’s a foundational element of modern homes and buildings. Whether you’re calculating drywall cost per square foot, repairing a hole in your ceiling, or selecting the right type of drywall for soundproofing, understanding your options makes a huge difference. With the right tools, knowledge, and care, drywall can serve you for decades.
FAQs
What is the difference between drywall and Sheetrock?
Drywall is a generic term for gypsum board, while Sheetrock is a branded product made by USG Corporation. Functionally, they are the same.
How much does drywall installation cost per square foot?
Including labour and materials, the cost ranges from ₹35 to ₹60 (or $1.50 to $3.00) per square foot, depending on type and complexity.
Can I repair a small hole in the drywall myself?
Yes! A patch kit, joint compound, and a bit of sanding can easily fix nail or screw holes.
What type of drywall is best for soundproofing?
Soundproof drywall with added layers or insulation is best. Look for speciality boards like QuietRock or use double layers with Green Glue in between.
How do I fix water-damaged drywall?
Cut out the damaged portion, replace it with mould-resistant drywall, apply joint compound, sand smooth, and repaint.