If you are planning a residential or commercial interior project, you will immediately face a critical decision: selecting the right grade of plywood. Using the wrong material can lead to moisture damage, delamination, and costly repairs down the line.

At OBOK, manufactured by the experts at Perfect Ply Industries in Yamunanagar, we believe in complete transparency. We don’t just use industry buzzwords; we back our structural panels with official Bureau of Indian Standards (BIS) certifications.

Here is your definitive guide to understanding the difference between IS 710 and IS 303 grades, and where to use them.

IS 710: The Ultimate Marine Grade (BWP) When a plywood board is certified as IS 710, it means it is authentic Boiling Water Proof (BWP) Marine Plywood.

• The Standard: Under our official License No. CM/L- 9100155205, our BWP panels undergo a grueling 72-hour boiling water test to ensure the phenol-formaldehyde (PF) resin maintains an unbreakable core bond.
• Where to Use It: This is your non-negotiable choice for high-moisture zones. Always specify IS 710 for modular kitchen cabinets, bathroom vanities, utility areas, and any exterior-facing structural woodwork.

IS 303: The Premium Commercial Grade (MR/BWR) Certified under IS 303 (License No. CM/L- 9100130193), this is the gold standard for General Purpose Plywood.

• The Standard: Available in Moisture Resistant (MR) and Boiling Water Resistant (BWR) variants, these panels offer massive structural strength, excellent screw-holding capacity, and rigorous core quality.
• Where to Use It: Perfect for dry or semi-dry zones. Specify IS 303 for bedroom wardrobes, living room TV units, office partitions, beds, and standard cabinetry.

The OBOK Guarantee Across All Grades Whether you choose our Marine or Commercial lines, every OBOK panel comes with our standard manufacturing pedigree: 100% calibrated precision, GLP chemical treatment for borer and termite protection, and a warranty extending up to 36 years.

Source Certified Materials Today Stop guessing with unverified materials. OBOK is fully stocked and available for wholesale and retail distribution across our authorized Gujarat network:

• 📍 Surat: Proxima Beyond Decor
• 📍 Amreli: Patel Ply

Visit our Quality & Certifications page to view our official BIS licenses, or hit the WhatsApp button below to request an immediate quote from your nearest distributor.