Conwood by INSEE

Innovative wood replacement materials for sustainable construction

Mitigating Environmental Impact and Balancing the Ecosystem

Steering the Sri Lankan construction industry towards environmentally responsible and sustainable construction practices, CONWOOD by INSEE is a perfected sustainable substitute for authentic wood products. Manufactured using ultramodern technology, our range of multipurpose CONWOOD products can be used for both indoor and outdoor architectural as well as decorative applications, with guaranteed durability, versatility and enhanced sustainable features


CONWOOD panels contain 0% wood, are non-toxic, and can withstand exposure to a range of weather conditions. With a recorded hardness score of 13 MPa/cm, CONWOOD sets an industry benchmark guaranteeing highly durable structures.

Enhanced features of CONWOOD:
Beauty as a real wood
Weather Resistant
Easy to install
Fire Resistant
Termite Free
Asbestos Free

A wide range of product

The CONWOOD product range comprises of wall, floor, ceiling, eaves and other multipurpose decorative material. All CONWOOD products can be easily assembled with the use of simple masonry tools, and retains the beauty and appearance of a natural wood finish. The easy assembly, low maintenance cost and minimum overheads also make CONWOOD products highly cost efficient.

CONWOOD Floor Products

CONWOOD Deck 4” 3-in-1 T-Lock
CONWOOD Decorative Deck
CONWOOD Decorative Deck Liner
CONWOOD Decorative Stair
CONWOOD Decorative Stair Handrail
CONWOOD Wall Products

CONWOOD Door Frame Single
CONWOOD Lap Siding G-series 8′
CONWOOD Lap Siding 6″ BG
CONWOOD Lap siding 12″ BG
CONWOOD Lap siding 12″
CONWOOD Decorative Panel Modern
CONWOOD Decorative Panel Liner
CONWOOD Decorative Panel Rythm
CONWOOD Decorative Panel 1″ Stick
CONWOOD Decorative Panel Array
CONWOOD Decorative Panel U Groove
CONWOOD Decorative Panel V Groove
CONWOOD Decorative Panel Brick
CONWOOD Siding Karaked
CONWOOD Decorative Panel ECP
CONWOOD Door Frame Classic
CONWOOD Door Frame Connect
CONWOOD Eaves and Ceiling Products

CONWOOD Eave Modern
CONWOOD Eave 2in1
CONWOOD Ceiling Border
CONWOOD Decorative Lath
CONWOOD Multipurpose Products

CONWOOD Sunshade
CONWOOD Plank 2″
CONWOOD Multifunction 1.2×2.4 m Giant Grain Sheet 20 mm


INSEE introduces the innovative CONWOOD House concept to Sri Lanka; cost-effective and energy-efficient homes that are resourcefully and reliably constructed within an accelerated time frame using the winning combination of highly sustainable CONWOOD and INSEE construction products.

A wide range of tests and equipment to assess fresh and hardened concrete properties

  • Specified Tests for Self-Compacting Concrete
    • Flow Table Test – BS EN 12350-5:2019
    • J-Ring Test – BS EN 12350-12:2010
    • V Funnel – BS EN 12350-09:2010
    • L Box – EN 12350
  • Slump test – BS EN 12350-2 and ASTM C143
  • Density of fresh concrete – ASTM C138
  • Air content in fresh concrete – ASTM 231
  • Concrete bleeding – ASTM 232
  • Concrete setting time – ASTM C403
  • Compressive Strength up to 180 MPa – Testing Machines (3000 & 4000KN) – Double the existing strength standards in Sri Lanka
  • NDT for Compressive Strength up to 130 MPa – Impact Rebound Hammers – Double the existing equipment capacity in Sri Lanka
  • Flexural Strength – ASTM C78 / BS EN 12390-5-2019
  • Splitting Resistance – ASTM C-496 / EN 12390-6 / EN 1338
  • Concrete Specimen Grinding Machine – BS EN 12390-2 2019/ ASTM D4543

A wide range of tests and equipment to assess and ensure your aggregate grade meets the demand and requirement of your concrete.

  • INSEE Measurement Tools
    • INSEE Blue™ – Assess clay content as key quality indicator for manufactured and natural pit sand
    • INSEE Shape™ – Assess the grain shape particles as key quality indicator for manufactured sand
  • Coarse and fine aggregate particles size distribution – ASTM C136 / C136M – 19 & BS EN 933-1
  • Relative Density and Absorption of Coarse Aggregates – ASTM C127-12
  • Aggregate Impact Value (AIV) – BS EN 1097-2:2010
  • Flakiness Index & Elongation Index – BS EN 933-3:2012
  • Soundness Test of Aggregates – SN EN 206-1
  • Aggregate Crushing Value (ACV)- BS EN 1097-2:2010
  • Los Angeles Abrasion Test – ASTM C 131-06

A range of tests to assess properties of fresh concrete that go beyond the traditional ‘slump test’, improving the quality and consistency of concrete.

  • INSEE Measurement Tools
    • INSEE Flow™
    • INSEE Heat™
    • INSEE Color™
    • INSEE ConTemp™
  • ICAR Rheometer for paste, mortar & concrete toassess pumpability, flow resistance, thickness, slump retention, admixtures compatibility
  • Grout for Pre-Stressing Tendons – BS EN 445 2007
  • Electrical Conductivity for paste & mortar
  • Cementometer™ latest microwave technology for the determination of fresh concrete water to cement w/c ratio

Advanced testing with durability indicators to optimize structural performance and extend the service life of concrete structures exposed to severe environments.

  • Rapid Chloride Permeability Test - ASTM C1202
  • Bulk Electrical Conductivity of Hardened Concrete - ASTM C1760-12
  • Specific Resistivity - RILEM TC154 - AASHTO T358
  • Concrete Carbonation - Swiss SIA 262-1/1 CEN/TS 12390-12
  • O2 Permeability - RILEM 116-PCD CEMBUREAU Method
  • Capillary Water Absorption/ Sorptivity - Swiss SIA 262/1:2013 ASTM C1585-04
  • Initial Surface Absorption (ISAT) - BS 1881 Part 5
  • Water Permeability - EN 12390-8:2000
  • Concrete Sulphate Resistance - SIA 262-1/A