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Bill of Quantities (BOQ)

Official Tender Specifications & Technical Descriptions for Gypsonic GRG Acoustic Ceiling & Wall Systems
CPWD & MES Approved

CPWD, DSR. Item No. 26.26

MES, SSR. Item No. 12139

BOQ DESCRIPTION

Providing & fixing false ceiling at all heights with GRG (Glass Fibre Reinforced Gypsum) false ceiling tiles of Size 595x595 mm of approved texture, design and patterns having moisture content less than 2%, humidity resistance of 99%, NRC 0.50 to 0.75 as per IS 8225:1987,Non combustible as per BS 476 (part 4)-1970 and light reflectance of 85% (minimum) to be laid in true horizontal level suspended on interlocking metal T-Grid of hot dipped galvanised iron section of 0.33mm thick (galvanized @ 120 grams per sqm including both sides) comprising of main-T runners of size 15×32 mm of length 3000 mm, cross – T of size 15×32 mm of length 1200 mm and secondary intermediate cross-T of size 15×32 mm of length 600mm to form grid module of size 600 x 600 mm, suspended from ceiling using galvanised mild steel items (galvanizing @ 80 grams per sqm) i.e. 50 mm long, 8 mm outer diameter M-6 dash fasteners, 6 mm dia fully threaded hanger rod upto 1000 mm length and L-shape level adjuster of size 85x25x2 mm. Galvanised iron perimeter wall angle of size 24x24x0.40 mm of length 3000 mm to be fixed on periphery wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40 mm long dry wall wood screws. The work shall be carried out as per specifications, drawing and as per directions of the Engineer-in-Charge.

26.26.1
Semi perforated 12 mm thick micro tegular edged GRG false ceiling tiles.
Semi perforated 12 mm thick micro tegular edged GRG tile (IS 2095 Part 3)
12mm Tegular Tile (IS 2095 Part 3)
Suspension System (T-Grid)
T-Grid for 15mm Grid

System : For 15mm Grid (Tegular / Micro Tegular)

Technical Specifications
Color / FinishBrilliant White (Standard)
Tile Size595 mm x 595 mm (± 3 mm)
Thickness12 mm (± 0.5 mm)
Edge ConstructionTegular / Micro Tegular (for 15mm Grid)
Material CompositionGlass Fibre Reinforced Gypsum (GRG)
BIS ApprovalIS 2095 Part 3 ISI Marked
Acoustic NRC0.63 – 0.75 (Certified as per IS 8225:1987)
Fire PerformanceBS-476-4:1970 Class-0 Non-Combustible
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2% (Moisture Proof)
Light Reflectance94% (Minimum requirement 85%)
Impact Strength11.90 N.mm/sqmm (as per IS 13360)
Anti-Bacterial Property99.98% Microbial Reduction (ASTM E2149-10)
Suspension SystemInterlocking Metal T-Grid (15x32 mm Main-T)
26.26.2
Fully perforated 12 mm thick micro tegular edged or 10 mm thick square edged GRG false ceiling tiles.
Fully perforated GRG false ceiling tiles (IS 2095 Part 3)
10mm Square / 12mm Tegular Tile
Suspension System (T-Grid)
T-Grid System

Main-T : 15 x 32 mm  |  Cross-T : 15 x 32 mm

Technical Specifications
Color / FinishBrilliant White (Standard)
Tile Size595 mm x 595 mm (± 3 mm)
Thickness10 mm (Square) / 12 mm (Micro Tegular)
Edge ConstructionSquare Edged / Micro Tegular
Material CompositionGlass Fibre Reinforced Gypsum (GRG)
BIS ApprovalIS 2095 Part 3 ISI Marked
Acoustic NRC0.60 – 0.75 (Certified as per IS 8225)
Fire PerformanceBS-476-4:1970 Class-0 Non-Combustible
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2%
Light Reflectance90% (Certified)
Compressive Strength7.6 N/mm² (IS 2380 Part-8)
Static Bending Strength4.7 N/mm² (IS 2380 Part-8)
Suspension SystemHot Dipped GI Interlocking T-Grid (15x32 mm Runner)
T-Grid Specification

FULLY - PERFORATED T-GRID CEILINGS

Fully-Perforated T-Grid Ceilings
Fully Perforated GRG Ceiling Tile
T-Grid System
T-Grid Diagram

Main-T : 15/24 x 32 mm  |  Cross-T : 15/24 x 26 mm

Technical Specifications
Color / FinishBrilliant White (Standard)
Tile Size595 mm x 595 mm (± 3 mm)
Thickness12 mm (± 0.5 mm)
Edge ConstructionSquare
Material CompositionGlass Fiber Reinforced Gypsum (GRG)
BIS ApprovalIS 2095 Part 3 BIS Certified
Acoustic NRC0.60 – 0.75 (with Glasswool backing)
Fire ResistanceBS-476-4:1970 / IS:1734 Non-Combustible
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2%
Static Bending Strength4.7 N/mm² (as per IS 2380 Part-8)
Compressive Strength7.6 N/mm² (as per IS 2380 Part-8)
Impact Strength11.90 N.mm/sqmm (IS 13360)
Anti-Bacterial Property99.98% Reduction (ASTM E2149-10)
Light Reflectance90%
T-Grid SystemMain-T 24/15x32 mm | Cross-T 24/15x26 mm
BOQ DESCRIPTION

Providing fully–perforated GYPSONIC © acoustic ceiling at all heights with GRG (Glass Fiber Reinforced Gypsum) false ceiling tiles of Size 595x595 mm consisting the thickness of 12mm of approved texture, design and patterns having BIS Approval of IS 2095 Part 3, Impact Strength of 11.90 N.mm/sqmm, moisture content less than 2%, Rh of 99%, NRC 0.60 to 0.75, Noncombustible as per IS: 1734 static bending of 4.7 N/mm2 and compressive strength of 7.6 N/mm2 AS PER is 2380 ( Part-8) & 99.98% Anti- Bacterial as per ASTM E2149 - 10 to be laid in true horizontal level suspended on inter-locking metal T-Grid of hot dipped galvanized iron section of 0.28mm thick (galvanized @ 120 grams per sqm including both sides) comprising of main-T runners of size 24x32 mm of length 3000 mm, cross - T of size 24x26 mm of length 600 mm and secondary intermediate cross-T of size 24x26 mm of length 600mm to form grid module of size 600 x 600 mm, suspended from ceiling using galvanized mild steel items i.e. 50 mm long, 8 mm outer diameter M-6 dash fastener hanged by 16 gauge Galvanized/ S.S. wire at the distance of 600mm between each. Galvanized iron perimeter wall angle of size 24x24x0.30 mm of length 3000 mm to be fixed on periphery wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40 mm long dry wall metal wood grip screws on which Glasswool mats of 24 density and 50mm thickness to be laid. The work shall be carried out as per specifications, drawing and as per directions of Engineer-in- Charge.

Screw-Fix Specification

FULLY - PERFORATED SCREW-FIX CEILINGS & WALLS

Fully Perforated Screw-Fix Ceilings and Walls
Acoustic Wall & Ceiling Panel
Screw-Fix System
Screw-Fix Framework Diagram

Intermediate : 45 mm  |  Ceiling Section : 50 mm

Wall Angle : 24 x 24 mm

Technical Specifications
Color / FinishBrilliant White (Standard)
Panel Size595 mm x 595 mm (± 3 mm)
Thickness12 mm (± 0.5 mm)
Edge ConstructionSquare (Seamless Jointable)
Material CompositionAcoustic GRG (Glass Fibre Reinforced Gypsum)
Acoustic NRC0.60 – 0.75 (with 50mm Glasswool backing)
Fire ResistanceBS-476-4:1970 Class-0 Certified
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2%
Compressive Strength7.6 N/sqmm (IS 2380 Part-8)
Static Bending Strength4.7 N/sqmm (IS 2380 Part-8)
Framing ChannelGI Main Runner & Cross Channels (c/c 297.5 mm)
Perimeter TrimGI Wall Angle: 24 x 24 mm / 20 x 20 mm
Insulation Infill24 Density & 50 mm thick Glasswool mat
Light Reflectance90%
BOQ DESCRIPTION

Providing & fixing fully perforated GYPSONIC © Acoustic GRG (Glass Fibre Reinforced Gypsum) wall panels of Size 595x595mm consisting the thickness of 12mm of moisture content less than 2%, humidity resistance of 99%, NRC from 0.60 to 0.75 with glasswwool having compressive strength of 7.6 N/sqmm and static bending strength of 4.7 N/sqmm to be screwed on 12 feet length and weight of 1.250kg Anti-corrosive Galvanized Iron Main runner fixed at interval of 600mm centre to centre (c/c) in one-way direction with 20mm X 20mm Galvanized Iron wall angle of required length with suitable distance as per plan details fixed on wall or ceiling with 25mm screws anchored 35mm deep into the wall and strapped hangers by screws then fixed upon 50mm broad cross-channels connected at right angle with main runner channels at interval of 297.5mm centre to centre (c/c) fixed by self-threaded screw. Glass wool of 24mm and thickness of 50 mm to be spread on framework. After fixing G.R.G. tiles on framework joints need to be filled with superfine quality gypsum plaster then painted it with similar colour of tiles for finishing. The work shall be carried out as per specifications, drawing and as per directions of Engineer-in-Charge.

Big Board Specification

GRG PERFORATED BIG BOARD SCREW-FIX FOR CEILINGS & WALLS

GRG Perforated Big Board
Big Board (595 x 1195 mm)
Screw-Fix System
Framework Diagram

Intermediate : 45 mm  |  Ceiling Section : 50 mm

Wall Angle : 24 x 24 mm

Technical Specifications
Color / FinishBrilliant White (Paintable)
Board Size595 mm x 1195 mm (± 3 mm)
Thickness12 mm (± 0.5 mm)
Edge ConstructionSquare / Flush Joint System
Material CompositionGlassfibre Reinforced Gypsum (GRG)
BIS ApprovalIS 2095 Part 3 BIS Certified
Acoustic NRC0.60 – 0.75 (with Acoustic Infill)
Fire ResistanceBS-476-4:1970 Class-0 Certified
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2%
Impact Strength11.90 N.mm/sqmm (IS 13360)
Compressive Strength7.6 N/sqmm (IS 2380 Part-8)
Static Bending Strength4.7 N/sqmm (IS 2380 Part-8)
Suspension Framework45 mm GI Intermediate + 51.5 mm Ceiling Section
Light Reflectance90%
BOQ DESCRIPTION

Providing and Fixing GYPSONIC © Acoustic fully perforated G.R.G. (Glassfibre Reinforced Gypsum) false BIG board 1195mm x 595mm having thickness of 12mm having BIS Approval of IS 2095 Part 3, Impact Strength of 11.90 N.mm/sqmm, moisture content less than 2%, humidity resistance of 99%, NRC from 0.60 to 0.75 having compressive strength of 7.6 N/sqmm and static bending strength of 4.7 N/sqmm includes along with 18mm thick 75 mm width of pattas as main runner, screw fixed to brick wall/partition with the help of Nylon sleeves and screws at 610mm centres. Then suspending G.I. intermediate channels of size 45mm (0.9mm thick with 2 flanges of 15mm each) from the soffit at 1220mm centres with ceiling angle of width 25mm X 10mm X 0.55mm thick fixed to soffit with G.I. cleat and steel expansion fasteners. Ceiling section of 0.55mm thick having knurled web of 51.5mm and 2 flanges of 26mm each with lips of 10.5mm are then fixed to the intermediate channel with the help of connecting clips and indirection perpendicular to the intermediate channel at 450 mm centres on which Glasswool mats of 24 density and 50mm thickness to be laid. Premium grade superfine gypsum powder used to fill the joints followed by primer coat, jointing, scrapping two coats of water-soluble plastic paint. The work shall be carried out as per specifications, drawing and as per directions of Engineer in-charge.

Semi-Perforated Specification

SEMI - PERFORATED T-GRID CEILINGS

Semi-Perforated T-Grid Ceilings
Linear Semi-Perforated Tile
T-Grid System
T-Grid Diagram

Main-T : 15/24 x 32 mm  |  Cross-T : 15/24 x 26 mm

Technical Specifications
Color / FinishBrilliant White (Standard)
Tile Size595 mm x 595 mm (± 3 mm)
Thickness10 mm (± 0.5 mm)
Edge ConstructionSquare
Material CompositionGlass Fiber Reinforced Gypsum (GRG)
BIS ApprovalIS 2095 Part 3 BIS Certified
Acoustic NRC0.60 – 0.70
Fire ResistanceBS-476-4:1970 / IS:1734 Non-Combustible
Humidity Resistance (RH)99% RH (Certified)
Moisture ContentLess than 2%
Impact Strength11.90 N.mm/sqmm (IS 13360)
Static Bending Strength4.7 N/mm² (IS 2380 Part-8)
Compressive Strength7.6 N/mm² (IS 2380 Part-8)
T-Grid SystemMain-T 24/15x32 mm | Cross-T 24/15x26 mm
Light Reflectance94%
BOQ DESCRIPTION

Providing & fixing semi-perforated GYPSONIC © GRG (Glass Fiber Reinforced Gypsum) acoustic false ceiling tiles at all heights with of Size 595x595 mm consisting the thickness of 10mm of approved texture, design and patterns having BIS Approval of IS 2095 Part 3, Impact Strength of 11.90 N.mm/sqmm moisture content less than 2%, Rh of 99%, NRC 0.60 t, Non- combustible as per IS: 1734 static bending of 4.7 N/mm2 and compressive strength of 7.6 N/mm2 AS PER is 2380 ( Part-8) to be laid in true horizontal level suspended on inter-locking metal T-Grid of hot dipped galvanized iron section of 0.28mm thick (galvanized @ 120 grams per sqm including both sides) comprising of main-T runners of size 24x32 mm of length 3000 mm, cross - T of size 24x26 mm of length 600 mm and secondary intermediate cross-T of size 24x26 mm of length 600mm to form grid module of size 600 x 600 mm, suspended from ceiling using galvanized mild steel items i.e. 50 mm long, 8 mm outer diameter M-6 dash fastener hanged by 16 gauge Galvanized/ S.S. wire at the distance of 600mm between each. Galvanized iron perimeter wall angle of size 24x24x0.30 mm of length 3000 mm to be fixed on periphery wall / partition with the help of plastic rawl plugs at 450 mm center to center and 40 mm long dry wall metal wood grip screws. The work shall be carried out as per specifications, drawing and as per directions of Engineer-in-Charge.