Plywood Types and its Application

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What is Plywood?

Plywood is a sheet made from thin wooden layers. These thin wooden layers are then glued and machine pressed together to form a sheet. After gluing, these sheets are baked at 140 °C to form a Plywood. It is engineered wood. These wooden layers are processed from Oak, Mahogany, Teak, Maple Bark.

Sizes of Plywood

  1. 8’0″ x 4’0″
  2. 8’0″ x 3’0″
  3. 7’0″ x 4’0″
  4. 7’0″ x 3’0″

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There are 5 types of Plywood.

  • Softwood plywood
  • Hardwood plywood
  • Tropical plywood
  • ไม้อัดยืดหยุ่น
  • Marine plywood

In INDIA, softwood, flexible & marine Plywood is used on large-scale. Plywood comes not only in different thicknesses but also in different grades.

Grades of Plywood

Gradeคำอธิบาย
AFace and back veneers practically free from all defects.
A/BFace veneers practically free from all defects. Reverse veneers with only a few small knots or discolorations.
A/BBFace as A but reverse side permitting jointed veneers, large knots, plugs, etc.
BBoth side veneers with only a few small knots or discolorations.
B/BBFace veneers with only a few small knots or discolorations. Reverse side permitting jointed veneers, large knots, plugs, etc.
BBBoth sides permitting jointed veneers, large knots, plugs, etc.
C/DFor structural plywood, this grade means that the face has knots and defects filled in and the reverse may have some that are not filled. Neither face is an appearance grade, nor are they sanded smooth. This grade is often used for sheathing the surfaces of a building prior to being covered with another product like flooring, siding, concrete, or roofing materials.
WGGuaranteed well glued only. All broken knots plugged.
XKnots, knotholes, cracks, and all other defects permitted.
WBPWeather and Boil Proof used in Marine Ply. Designation replaced by EN 314-3.

Applications of plywood

Plywood is used in many applications depending upon the nature of work.

  • ไม้อัดไม้เนื้ออ่อน
  1. Floors, walls, and roofs in home constructions
  2. Wind bracing panels
  3. Vehicle internal bodywork
  4. Packages and boxes
  5. Fencing
  6. Concrete shuttering panels
  7. Ready-to-paint surfaces for constructions
  • ไม้อัดไม้เนื้อแข็ง
  1. Panels in concrete formwork systems
  2. Floors, walls, and roofs in transport vehicles
  3. Container floors
  4. Floors subjected to heavy wear in various buildings and factories
  5. Scaffolding materials
  6. เฟอร์นิเจอร์
  7. Sports equipment
  8. Musical instruments
  • ไม้อัดเขตร้อน
  1. Common plywood
  2. Concrete panel
  3. Floor base
  4. Structure panel
  5. Container flooring
  6. Lamin board
  • Flexible Plywood

Flexible plywood is used in furniture where a single sheet is used in continuity.

  • ไม้อัดมารีน

Marine plywood is used in Kitchens and wet areas. These are also used in Boats.

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