If you've ever stood in a plywood shop decoding "BWR", "BWP" and "MR", you're not alone. These letters decide whether your kitchen shutter survives ten monsoons or swells in two. Here's the plain difference, the 2026 price gap, and where each grade belongs.
The three grades in one minute
| Grade | Full form | IS standard | Water resistance |
|---|---|---|---|
| MR | Moisture Resistant | IS:303 | Humidity only — not water |
| BWR | Boiling Water Resistant | IS:303 | Resists water; survives occasional wetting |
| BWP / Marine | Boiling Water Proof | IS:710 | Highest — withstands continuous water |
The key jump is BWR to BWP. BWR resin resists boiling water; BWP/marine is bonded and tested to the stricter IS:710 standard, so it withstands prolonged soaking and steam.
Rule of thumb: BWR for dry furniture, BWP/marine wherever water is a regular visitor — kitchens, bathrooms, balconies and exteriors.
2026 price difference
| Grade | Approx / sheet (18mm 8×4) | Approx per sq ft |
|---|---|---|
| BWR | ₹1,800 – ₹2,600 | ₹55 – ₹85 |
| BWP / Marine | ₹2,400 – ₹4,300+ | ₹90 – ₹140+ |
BWP typically costs ~20–40% more than BWR of the same brand. Premium gurjan-core marine runs higher. Always confirm the current rate and the IS stamp with your dealer.
Where to use each
Use BWR for
Wardrobes, beds, TV units, study tables and most dry-area living and bedroom furniture.
Use BWP / marine for
Kitchen units and shutters, bathroom cabinets, balcony and exterior furniture, and humid coastal homes.
Need the right board for your project?
Talk to Gattani Plywood — premium plywood, WPC, doors, shuttering ply & laminates, with dealers across India.
Get a quote / find a dealerFrequently asked questions
Is BWP the same as marine plywood?
Yes — BWP and marine plywood both refer to plywood tested to IS:710, the highest water-resistance grade. The terms are used interchangeably in India.
Can I use BWR plywood in the kitchen?
BWR works in dry parts, but for base units, shutters and anything near the sink, BWP/marine is the safer choice.
How much costlier is BWP than BWR?
Roughly 20–40% more for the same brand and thickness, due to stricter IS:710 bonding and better cores.