3. COMMON MATERIALS USED
Formwork is the temporary mold or structure into which concrete
is poured to give it the desired shape and structure.
1. Plywood - available in different thicknesses and can be reused
multiple times if properly maintained.
2. Fiberboard - lightweight, easy to cut, and provides a smooth finish
to the concrete surface
3. Particleboard - made from wood particles and adhesive
4. Plastic Forms - lightweight and modular plastic panels that
interlock to form the desired shape
5. Metal Formworks - Steel and aluminum formwork
6. Engineered Wood Products - offer strength and stability and can
be used for multiple construction cycles
3
4. PLYWOOD 1. Sizes
• 4 feet x 8 feet: This is a standard size widely
used for construction purposes.
• 3 feet x 6 feet: For smaller projects
2. Thickness
• 1/4 inch (6mm): Often used for interior
applications and lighter-duty projects.
• 1/2 inch (12mm): A versatile thickness
suitable for various construction applications,
including formwork for walls and slabs.
• 3/4 inch (18mm): Commonly used for heavier-
duty applications
4
𝑵𝒖𝒎𝒃𝒆𝒓 𝒐𝒇 𝑷𝒍𝒚𝒘𝒐𝒐𝒅 =
𝑨𝒓𝒆𝒂
𝟏. 𝟐𝒎 × 𝟐. 𝟒𝒎
17. PROBLEM
17
A reinforced concrete building has 9
columns with a clear height of 4.00
meters. Determine the required
staging under the following
specifications:
Vertical Support: 2” x 3” lumber
Horizontal Supoort: 2” x 2” lumber
Diagonal Braces: 2” x 2” lumber
