WPC & PVC Doors — Complete Guide
WPC (Wood Polymer Composite) and PVC (Polyvinyl Chloride) doors are modern non-wood alternatives that have rapidly captured the bathroom and kitchen door market in India. Originally developed as cheap PVC doors with hollow plastic frames, they have evolved into sophisticated WPC composite doors that look identical to wooden flush doors but offer 100% waterproof performance, termite-proof construction, and 5–10 year warranties.
WPC doors are governed by IS 17850 (Wood Polymer Composite Door Shutters). Top brands: Sintex, Action TESA, Greenply, Duroply, Centuryply Sainik WPC, Polytec, Saint-Gobain, Trimix.
What are WPC & PVC Doors?
PVC Door
Made of extruded PVC sheets / panels in a hollow frame. The interior is hollow or filled with foam. Used historically for bathrooms only. Very cheap (Rs 1,500–3,500). Lightweight, plastic feel, looks artificial.
WPC Door (Modern Premium)
Made of Wood Polymer Composite — a blend of ~70% wood flour (or rice husk / wheat husk), 20–25% PVC resin, 5–10% additives, extruded into solid boards. WPC boards look, feel, cut, and screw like wood, but are 100% waterproof, termite-proof, and fire-retardant.
Modern WPC doors are virtually indistinguishable from real wooden flush doors after lamination/membrane finishing. They cost 30–50% less than premium wooden doors, install in the same way, and carry 5–10 year warranties against warping, swelling, and termite attack.
WPC vs PVC Doors
| Parameter | WPC Door | PVC Door |
|---|
| Construction | Solid composite (wood flour + PVC) | Hollow PVC profile with sheet skin |
| Density | 700 – 1100 kg/m³ | 250 – 400 kg/m³ (hollow) |
| Strength | Excellent (handles screws / hinges) | Poor (frame can deform) |
| Look & Feel | Like real wood (with lamination) | Plastic, hollow |
| Sound Insulation | Good | Poor (hollow) |
| Weight | 20 – 30 kg (heavier) | 8 – 15 kg (light) |
| Termite-Proof | Excellent | Excellent |
| Water-Proof | 100% | 100% |
| UV Resistant | Yes (with PU finish) | Limited (yellows) |
| Fire Resistant | FR variants available | Limited (PVC burns) |
| Workability | Cuts & drills like wood | Cuts like plastic, weak holes |
| Premium Look | Yes (laminated) | No |
| Lifespan | 15 – 25 years | 5 – 12 years |
| Best For | Bathroom, kitchen, internal doors | Budget bathroom doors only |
| Cost (Standard Size, Rs) | 4,500 – 15,000 | 1,500 – 3,500 |
Types of WPC Doors
| Type | Description | Cost |
|---|
| WPC Solid Door (Plain) | Standard 30–45 mm thick, unfinished | Mid range |
| WPC Laminated Door | Pre-laminated WPC, melamine paper finish | Mid-premium |
| WPC Membrane Door | Vacuum-formed PVC membrane (wood look) | Premium |
| WPC Veneered Door | Wood veneer face on WPC core | Premium |
| WPC Painted Door | PU lacquered solid colour | Mid-premium |
| WPC Designer Door | CNC routed patterns / 3D | Premium |
| WPC Mould-Pressed Door | Pressed wood-grain texture | Premium |
| WPC Fire Retardant Door | FR additives, IS 5509 compliant | Premium+ |
| WPC Glazed / Half-Glass Door | WPC frame + glass insert | Premium |
| WPC French Door | Multi-panel with glass | Premium |
| WPC Sliding Door | Sliding mechanism + WPC panel | Premium |
| WPC Frame (Chowkat) | Door frame in WPC profile | Mid-premium |
Standard Door Sizes
| Application | Standard Size (mm) | Imperial (ft) |
|---|
| Bathroom / Toilet | 1981 x 762 | 6.5 x 2.5 |
| Bathroom / Toilet (small) | 1981 x 686 | 6.5 x 2.25 |
| Bedroom | 2032 x 813 / 2134 x 813 | 6.75 x 2.75 / 7 x 2.75 |
| Main Entrance | 2134 x 914 / 2438 x 1067 | 7 x 3 / 8 x 3.5 |
| Kitchen / Utility | 2032 x 762 / 2032 x 813 | 6.75 x 2.5 / 6.75 x 2.75 |
| Pooja Room | 1981 x 686 / 2032 x 762 | 6.5 x 2.25 / 6.75 x 2.5 |
| Internal Office | 2032 x 813 | 6.75 x 2.75 |
| Custom | Made to order | Various |
Standard Door Thicknesses
| Thickness | Use |
|---|
| 30 mm | Bathroom, light interior |
| 35 mm | Bedroom internal |
| 40 mm | Standard interior (most common) |
| 45 mm | Heavy interior, kitchen |
| 50 mm | Main door (entry) |
Physical Properties (IS 17850)
| Property | WPC Door |
|---|
| Density | 700 – 1100 kg/m³ (varies by composition) |
| Compressive Strength | > 25 MPa |
| Flexural Strength | > 18 MPa |
| Modulus of Elasticity | > 2,500 MPa |
| Tensile Strength | > 8 MPa |
| Screw Holding (Edge) | > 1,400 N |
| Screw Holding (Face) | > 2,000 N |
| Water Absorption (24 hr) | < 1.5% |
| Swelling in Thickness | < 1% |
| Termite Resistance | Excellent (no cellulose for food) |
| Fire Performance | Class 2 (with FR additives) |
| Sound Insulation (Rw) | ~28 dB (40 mm thick) |
| Operating Temperature | −20 to +60 °C |
| UV Resistance | Good (with finish) |
| Workability | Cuts, drills, routs like wood |
| Lifespan | 15 – 25 years |
Composition
| Ingredient | Percentage | Function |
|---|
| Wood Flour / Husk Powder | 60 – 75% | Body, lightweight, low cost |
| PVC Resin (Polyvinyl Chloride) | 20 – 30% | Binder, waterproofing |
| Calcium Carbonate | 5 – 10% | Filler, dimensional stability |
| Stabilisers (Pb, Ca-Zn) | 2 – 4% | UV / heat stability |
| Lubricants | 1 – 2% | Processing aid |
| Coupling Agents | 1 – 2% | Wood-PVC bond |
| Pigments | 0.5 – 1% | Colour |
| FR Additives (if required) | 2 – 5% | Fire retardancy |
Manufacturing Process
- Wood Flour Preparation: Wood waste ground to 60–100 mesh
- Drying: Wood flour dried to < 1% moisture
- Mixing: Wood flour + PVC resin + additives in high-speed mixer
- Extrusion: Hot extrusion at 170–200°C through die into board shape
- Calibration: Sized through calibrator
- Cooling: Water bath cooling
- Cutting: Cut to door panel sizes
- Sanding: Surface sanded smooth
- Lamination / Finishing: Pre-laminate, paint, or membrane finish
- Quality Check: Dimension, density, surface, edge defects
- Door Assembly: Cut, edge band, install hinges, locks, fittings
Top Indian Brands & Products
| Brand | Top Products |
|---|
| Sintex Industries | Sintex WPC Doors, Sintex Solid Doors, Sintex Membrane |
| Action TESA | Step Doors, WPC Solid Doors, Eco Doors |
| Greenply / Greenpanel | Green WPC Doors |
| Centuryply (Sainik) | Sainik WPC Door, Sainik Membrane |
| Duro Ply | Duroply WPC Door, Duro Aqua Door |
| Polytec | Polytec WPC, Polytec Membrane |
| Saint-Gobain (Sharon) | Sharon Eco Doors |
| Trimix | Trimix WPC, Trimix Aqua |
| Mahalaxmi Plywood | Mahalaxmi WPC |
| Sarda WPC | Sarda WPC Doors |
| Kitply | Kitply WPC, Kitply Membrane |
Installation Process
- Frame Installation: Fix WPC / metal / wood door frame (chowkat) at wall opening with masonry screws / sleeves
- Frame Plumbing: Check vertical, horizontal level with spirit level / plumb
- Hinge Marking: Mark 3 hinge positions on door & frame (top: 150 mm, middle: centre, bottom: 250 mm from edges)
- Hinge Mortise: Rout / chisel hinge mortise on door edge and frame
- Hinge Fitting: Fix 4-inch SS / brass hinges with 25 mm screws
- Door Hanging: Hang door, verify opening / closing smooth
- Lock Installation: Install mortise / cylindrical lock
- Door Stopper: Fix wall / floor mounted door stopper
- Bathroom Indicator (optional): Privacy lock with engaged indicator
- Gap Check: 3–5 mm gap on sides, 8–10 mm at bottom (floor clearance)
- Final Adjustment: Hinge tightening, lock alignment
- Sealant: Apply silicone sealant at frame-wall junction (waterproofing)
- Architrave: Install decorative architrave around frame (optional)
- Inspection: Check for warps, scratches, finish defects
| Parameter | WPC Door | Flush Door (Wood) | Solid Wood Door |
|---|
| Material | Wood-polymer composite | Hardwood frame + plywood face | Solid teak / sal / sheesham |
| Waterproof | 100% Yes | BWP grade Yes | Limited (teak best) |
| Termite-Proof | Excellent | Treated wood | Treated wood |
| Weight | 20–30 kg | 25–35 kg | 35–50 kg |
| Strength | Good | Excellent | Excellent |
| Premium Aesthetic | With laminate / membrane / veneer | With laminate / veneer | Natural wood grain |
| Sound Insulation | Good (~28 dB) | Good (~30 dB) | Best (~32 dB) |
| Lifespan | 15 – 25 yr | 20 – 35 yr (BWP) | 50 – 100 yr (Burma teak) |
| Repairability | Limited | Surface re-laminate | Sand & refinish |
| Cost (40 mm bedroom door) | Rs 4,500 – 12,000 | Rs 4,000 – 12,000 | Rs 12,000 – 35,000 |
| Best For | Bathroom, kitchen, interior | Bedroom, internal premium | Main entrance, premium |
Where to Use WPC / PVC Doors
WPC Doors Best For:
- Bathroom doors (100% waterproof) — #1 use
- Kitchen doors
- Utility room doors
- Bedroom doors (cost-effective)
- Office cabin doors
- Hostel rooms, dormitories
- Hotel rooms (mid-range)
- Hospital rooms
- School classrooms
- Industrial / factory office doors
- Rental property doors
- Rebuild / replacement (existing termite damaged)
- Coastal / humid climate homes
- Wash area / yard doors
PVC Doors Suitable For (Budget Only):
- Cheap rental bathroom doors
- Temporary / construction site doors
- Storage room doors
- Servant / staff quarter doors
- Public toilet (commercial)
- Avoid for premium homes / main use
NOT Recommended For:
- Main entrance (use solid wood or fiber/steel)
- Heritage / luxury homes (use solid wood)
- External / weather exposed (limited UV resistance)
- Highly secure entrance (use steel / fiber)
- Very heavy doors (> 3 ft wide)
Advantages
- 100% waterproof — never swells / rots
- Termite-proof — no cellulose for food
- No warping / cracking
- Fire-retardant variants available
- Lightweight (vs solid wood)
- Cuts, drills, screws like wood
- Available in wood-grain laminate / membrane finish
- Cheaper than premium teak doors (30–50% less)
- Ready-made door + frame combos available
- 5–10 year manufacturer warranty
- Eco-friendly (uses agricultural / industrial waste)
- Sound-dampening (vs hollow PVC)
- UV resistant (with finish)
- Easy maintenance (just wipe)
- No re-polishing required
- Stable in humid coastal climates
- Reusable / recyclable
- FR variants for high-fire-risk areas
- Wide design / colour range
- Faster installation than custom wood
Disadvantages
- Aesthetic value lower than premium solid wood
- Limited premium look (compared to teak)
- Surface damage difficult to repair
- Edge chipping possible
- Heavy for hollow alternatives (PVC)
- Not biodegradable (PVC content)
- Lower resale value than wood
- Lower lifespan than premium hardwood
- Cannot be sanded / refinished
- UV degradation without proper finish
- Quality varies between brands
- Cheap WPC can warp in extreme heat
- Less suitable for main entrance (security)
- Cannot be hand-carved like wood
- Industrial / synthetic feel (cheap variants)
- Smell of plastic during initial use
- Stains can show on smooth finish
Quality Check & Buying Guide
- Check ISI mark and IS 17850 certification
- Verify brand authentic packaging
- Test panel thickness uniformity (± 1 mm OK)
- Check density (heavier = more PVC / wood, better)
- Inspect surface finish (smooth, no patches)
- Check edge band quality
- Verify FR / non-FR per requirement
- Ask for warranty card (5–10 years)
- Compare weight to solid wood (heavier WPC = better quality)
- Check screw-holding test on sample
- Verify pre-laminated faces (both sides) for designer doors
- Avoid super-cheap PVC hollow doors for main use
- Buy frame + shutter as system for best fit
Cost (Approximate, Indian Market)
| Door Type / Size | Cost (Rs) |
|---|
| PVC Hollow Bathroom Door (Plain) | 1,500 – 2,800 |
| PVC Bathroom Door with Frame | 2,500 – 4,500 |
| WPC Plain Door (Bathroom, 30 mm) | 3,500 – 6,000 |
| WPC PreLam Door (Bedroom, 35–40 mm) | 4,500 – 9,000 |
| WPC Membrane Door (Bedroom) | 5,500 – 11,000 |
| WPC Veneered Door (Premium) | 9,000 – 16,000 |
| WPC Designer / CNC Routed | 11,000 – 22,000 |
| WPC Main Entrance Door (Heavy) | 15,000 – 30,000 |
| WPC Frame (Chowkat) per running ft | 180 – 350 |
| WPC Sliding Door System | 14,000 – 32,000 |
| FR Grade WPC Door | +30–50% over standard |
| Installation Labour | 800 – 1,500 per door |
| Hardware (hinges, locks) | 1,200 – 4,000 per door |
| Architrave / Trim (per ft) | 120 – 280 |
| Bathroom Door Complete (Average) | 6,500 – 14,000 (all in) |
| Bedroom Door Complete (Average) | 8,500 – 18,000 (all in) |
Tests on WPC Doors (IS 17850)
- Dimensional Tolerance
- Density Test
- Water Absorption (24 hr immersion)
- Thickness Swelling Test
- Modulus of Rupture (Flexural Strength)
- Internal Bond Strength
- Screw Withdrawal (Face & Edge)
- Termite Resistance Test — IS 4873
- Fire Performance — IS 5509 (FR variants)
- UV / Weathering Resistance
- End Immersion Test
- Hinge Pull-Out Test
- Knife Test (Surface Soundness)
- Shock / Impact Resistance
- Surface Finish Quality
Best Practices
- Choose WPC over PVC for any premium use
- For bathroom, WPC is the #1 choice (replaces wood)
- Buy from authorised dealer of branded WPC (Sintex, TESA, Sainik)
- Match frame and shutter from same manufacturer
- Use SS / brass hinges and hardware (rust-proof)
- Install with 3 mm gap on sides, 8 mm at floor
- Use door stopper to prevent damage
- Apply silicone sealant at frame-wall junction
- Use mortise lock (not surface mount) for security
- For main door, use solid wood or fiber/steel, not WPC
- For shower / wet area, use marine grade WPC
- FR variant for high-fire-risk areas
- Clean with soap water and soft cloth only
- Avoid abrasive cleaners on membrane finish
- Touch-up scratches with matching laminate / paint
- For windows in bathroom, pair with WPC frames
- Check warranty card and brand authenticity
- Ventilate well for first week (off-gas of plasticisers)
- Avoid direct hot sources (cooktops within 1 m)
Applicable Standards
| Standard | Description |
|---|
| IS 17850 | Wood Polymer Composite Door Shutters — Specification |
| IS 2202 (Part 1 / 2) | Wooden Flush Door Shutters — Specification (related) |
| IS 4020 (Parts 1–18) | Methods of Tests for Door Shutters |
| IS 4873 | Method for Pull-Out Test of Door |
| IS 5509 | Fire Retardant Plywood / Wood / WPC |
| IS 13715 | Glossary of Terms Used in Forestry |
| EN 1530 | Door Leaves — General & Local Flatness |
| EN 1192 | Doors — Strength Requirements |
| EN 12219 | Doors — Climatic Influences |
| ASTM D7032 | WPC for Construction |
| ASTM D6109 | Flexural Properties of WPC |
| ASTM D7031 | Performance of WPC Products |
Conclusion
WPC doors have transformed the Indian door market by combining the look of wood with the performance of plastic. They are now the default choice for bathrooms (100% waterproof), an economical premium-look option for bedrooms, and an excellent eco-conscious alternative in humid coastal climates.
Recommendations:
- Bathroom door: WPC with PVC membrane finish (Rs 4,500–8,000)
- Kitchen door: WPC pre-laminated (Rs 5,000–9,500)
- Bedroom door (budget): WPC membrane / pre-lam (Rs 6,000–11,000)
- Bedroom door (premium): WPC veneered or wood flush door
- Main door: Solid wood (teak), steel / FRP door for security
- Office cabin: WPC veneered or designer
- Budget rental: PVC hollow door for bathroom only
For premium aesthetic, consider solid wood doors or wooden flush doors. For security-critical main entrance, see FRP & steel doors. For windows, see UPVC or aluminium.