IS 3087 : 2005Particle Board (Medium Density) for General Purpose - Specification

IS 3087 specifies medium-density particle board (MDPB) for general purpose — engineered wood panel made by hot-pressing wood particles + synthetic resin binder. Particle board is one of the most widely used engineered-wood panels in furniture, interior partitions, and shop fitting in India.

Use IS 3087 particle board when specifying: - Furniture (cabinets, wardrobes, kitchen units, office furniture) - Interior partitions (in dry zones) - False ceilings (where weight + appearance matter, not high humidity) - Display fixtures, retail shelving - Door cores (between veneer faces) - Industrial work surfaces (with appropriate facing) - Non-structural building applications

IS 3087 covers medium-density (550-750 kg/m³) particle board for general (interior) use. Other particle board codes: - IS 12823:1991 — pre-laminated particle board (already laminated; popular for furniture) - IS 12406 — medium density fibreboard (MDF) — different process, smoother surface - IS 14587 — exterior-grade particle board (water-resistant) - IS 1734:2000 — methods of test for plywood (separate from particle board)

Avoid IS 3087 particle board for: - Wet zones (kitchens around sink, bathrooms) — moisture causes swelling - Outdoor / exterior applications — UV + moisture degradation - Structural load-bearing — particle board is non-structural - Concrete shuttering — use IS 4990:2011 plywood instead - Furniture that needs heavy impact resistance (use solid wood or plywood)

IS 3087 covers Grade I (general use). Grades within the standard:

| Grade | Density (kg/m³) | Modulus of rupture (N/mm²) | Bond strength (N/mm²) | |---|---|---|---| | Grade I | 550-750 | ≥ 10 | ≥ 0.30 |

Standard sizes: - Length: 1830, 2440, 3050 mm - Width: 1220, 1830 mm - Thickness: 6, 9, 12, 16, 18, 25 mm (most common: 12, 18 mm) - Standard panel: 1830 × 1220 mm (6 ft × 4 ft)

Resin binders: - Urea-formaldehyde (UF) — most common; cheap; not water-resistant; releases formaldehyde - Melamine-urea-formaldehyde (MUF) — better water + heat resistance - Phenol-formaldehyde (PF) — best water resistance; used for exterior grade - Methylene diphenyl diisocyanate (MDI) — formaldehyde-free; for formaldehyde-sensitive applications

Formaldehyde emission classes (per E-1, E-2 European, or per BIS): - E-0 / Super-E0: ≤ 0.07 mg/m² per hour (lowest emission) - E-1: ≤ 0.124 mg/m² per hour (most common; suitable for indoor) - E-2: ≤ 0.62 mg/m² per hour (industrial; not for indoor residential) - IS 3087 currently doesn't strictly specify emission class; modern procurement should add E-1 minimum requirement

Surface finish options: - Plain (sanded): for further laminate / paint application - Pre-laminated (per IS 12823): decorative laminate factory-applied to one or both sides - Veneered: thin natural-wood veneer applied (teak, walnut, etc.) - Pre-painted: white or coloured paint factory-applied

Cost (approximate, 2026): - Plain particle board (12 mm): ₹40-60/sqft - Pre-laminated particle board (18 mm): ₹80-150/sqft (depends on laminate quality) - Veneered particle board (18 mm): ₹150-300/sqft (depends on veneer species)

Acceptance properties (IS 3087:2005):

| Property | Min / Max value | Test method | |---|---|---| | Density | 550-750 kg/m³ | Direct measurement | | Modulus of rupture (flexural strength) | ≥ 10 N/mm² | IS 12823 / IS 1734 method | | Modulus of elasticity (in flexure) | ≥ 1500 N/mm² | IS 12823 | | Tensile strength (perpendicular to surface) | ≥ 0.30 N/mm² | IS 12823 | | Edge swelling (24 hr water immersion) | ≤ 8 % | IS 12823 | | Surface absorption (V-shape water absorption) | ≤ 12 mg/cm² | IS 12823 | | Moisture content | 5-15 % | Oven-dry method |

Performance differences vs other panels:

| Property | IS 3087 Particle Board | MDF (IS 12406) | Plywood (IS 303) | |---|---|---|---| | Density | 550-750 kg/m³ | 600-900 kg/m³ | 550-700 kg/m³ | | Surface smoothness | Moderate (visible particles) | Excellent (smooth) | Visible grain | | Strength (flexural) | 10-15 N/mm² | 15-25 N/mm² | 30-60 N/mm² | | Water resistance | Poor | Poor | Good (BWR/BWP grade) | | Edge holding screw | Moderate | Good | Excellent | | Cost | Lowest | Medium | Higher |

Screw-holding capacity: - Edge of 18 mm particle board: 100-150 N (modest; needs special screws or pilot holes) - Plywood: 200-400 N (better edge holding) - For furniture hinges and concealed fittings, particle board needs cam-and-dowel or KD (knock-down) hardware vs direct wood screw

Dimensional stability: - Linear expansion / swelling: ≤ 0.5 % moisture cycling (in dry indoor conditions) - Thickness swelling at 24 hr immersion: ≤ 10 % (Grade I)

Burn / fire performance: - Particle board contributes to fire load (calorific value ~16 MJ/kg) - For fire-rated assemblies, use intumescent coating or non-combustible substitute - Smoke + toxic gas release on burning (formaldehyde resin binders)

• IS 12823:2015 — pre-laminated particle board.
• IS 12406 — Medium Density Fibreboard (MDF) for general purpose.
• IS 14587 — exterior-grade particle board.
• IS 1734:2000 — methods of test for plywood (similar test methods used for particle board).
• IS 303:1989 — plywood for general purposes.
• IS 710:2010 — marine plywood.
• IS 4990:2011 — plywood for concrete shuttering.
• IS 11215 — block boards.
• IS 13957 — laminated veneer lumber (LVL).
• IS 3097 — high-density particle board (HDF).
• IS 7316 — specifications for plywood + plywood products.
• IS 401 — code of practice for preservation of timber (relevant for natural-wood substitutes).
• IS 3629 — gypsum plasterboard (alternative for partition walls).
• IS 13990 — flush door shutters.
• NBC 2016 Part 5 — building materials (interior finish chapter).

1. Particle board in kitchen / bathroom. UF resin binder swells with moisture; warp + delamination within 1-2 years. Use marine plywood or moisture-resistant MDF. 2. No formaldehyde emission specification. Modern indoor air quality requires E-1 minimum (E-0 preferred). Specify in BOQ. 3. Direct screw into edge without pilot hole. Edge splits; screw doesn't hold. Use pilot hole + appropriate screw type (chipboard / particle-board screws). 4. Heavy load on cantilevered shelf. Particle board sags > 8 mm/m at moderate load; deflection visible + furniture fails. Use plywood or LVL for spans > 600 mm with load. 5. No edge banding. Exposed edges absorb moisture, swell, look untidy. Apply PVC / wood-veneer / aluminum edge banding to all visible edges. 6. Substandard supplier. Local 'particle board' may be Grade III or non-compliant; lower density, lower strength. Demand ISI mark + test certificate. 7. Non-laminated particle board with paint finish. Paint + primer needed (3 coats); cheaper to start with pre-laminated. 8. Fire-rated assembly using particle board. Particle board burns; cannot be primary fire-rated material. Use gypsum board or fire-rated MDF. 9. Particle board exposed to UV. Surface degrades, colours fade, binder becomes brittle. Indoor only; not for outdoor furniture. 10. Long-term storage in humid conditions. Pre-installation humidity > 70 % causes board to absorb moisture, swell. Store in dry conditions; install after acclimatisation. 11. Mixing with solid-wood members. Solid wood expands / contracts with humidity differently than particle board; joint cracks. Allow for differential movement or use compatible materials. 12. No formaldehyde testing in air after installation. Indoor air quality complaints possible. For sensitive applications (hospitals, schools, residential bedrooms) test air formaldehyde post-install.

Interior fit-out material selection:

| Application | Best material | Acceptable substitute | |---|---|---| | Kitchen cabinets (carcass) | BWR plywood or moisture-resistant MDF | — | | Bedroom wardrobe (carcass) | Pre-laminated particle board (IS 3087 + IS 12823) | Plywood | | Office furniture (general) | Pre-laminated particle board | MDF, plywood | | Display shelving (commercial) | MDF, plywood | Particle board | | Door shutter (flush door) | Particle board core with veneer face | MDF core, plywood face | | Partition walls (interior) | Particle board / MDF / gypsum board | Plywood | | Wet areas (bathroom carcass) | BWR / BWP plywood, marine plywood (IS 710) | — (not particle board) | | Outdoor furniture | Solid teak, marine plywood with weatherproof coating | — (not particle board) |

Interior fit-out cascade:

1. Design — material schedule, shop drawings, hardware schedule. 2. Material specification: - Particle board grade (IS 3087 + emission class E-1 / E-0) - Pre-laminated or plain (per IS 12823:2015) - Edge banding type, hardware type 3. Source qualification — ISI marked, supplier reputation, test certificate. 4. Procurement — store dry, FIFO, acclimatise to indoor humidity before use. 5. Fabrication — pilot holes, pre-laminate the carcass, edge banding, hardware fitting. 6. Installation — level, plumb, anchor to walls / floors as appropriate. 7. Quality acceptance — visual finish, joint quality, hardware operation. 8. User handover — care instructions (no excess moisture, no overload, periodic cleaning). 9. Maintenance — touch-up paint / laminate, hardware adjustment, replacement of damaged sections.

IS 3087 is one of the foundational engineered-wood codes in India. Modern fit-out increasingly uses pre-laminated particle board (IS 12823) over plain board (IS 3087); both share the same base material but pre-laminated has factory-applied decorative finish + edge banding ready for installation.