Choosing the right concrete formwork plywood is about much more than picking a random thickness. Effective formwork design balances load, span, reuse targets, concrete finish and jobsite conditions to achieve safe, economical and predictable performance. This guide explains how to select thickness from 9–30mm and match it with the right grade for each type of concrete work.
Every formwork design starts with structural demand:
Selecting thickness and grade without considering these points often leads to either over‑specification (unnecessary cost) or under‑specification (deflection, damage and complaints).
Climate and site practice strongly affect real‑world performance:
For aggressive conditions and busy sites, it is usually safer to choose thicker panels and higher grades with better glue content and boiling hours.
Concrete formwork plywood typically ranges from 9–30mm. Each thickness band has common applications, from light sheathing to heavy slabs and beams.
Thicker panels (21–30mm) are usually recommended when:
While thicker panels cost more per sheet, they often reduce total system cost by allowing wider spacing of supports and longer service life.
Thickness alone does not define performance. The grade—core quality, glue level, boiling hours and film type—must match how often and how hard the panel will be used.
For small residential jobs, simple foundations or low‑risk work where only a few pours are expected, thinner panels and entry‑level grades can be sufficient:
In these cases, it is still important to respect support spacing and avoid using low‑grade panels for critical, heavily loaded elements.
For multi‑storey buildings, infrastructure and large contractors, Premium and Promax grades with higher glue content and longer boiling hours offer better value:
Combining higher grade with appropriate thickness reduces early failures, improves concrete finish and lowers cost per use across the project.
Residential slab (low‑rise): spans are moderate, loads are standard and reuse targets are often limited. Many buyers select 15–18mm Standard or mid‑range Premium panels with modest reuse expectations.
High‑rise core: wall heights, concrete pressure and cycle speed are much higher. Here, 18–21mm Premium or Promax panels with strong glue systems and longer boiling hours are better suited, often combined with tighter QC and more careful edge sealing.
Infrastructure projects such as bridges and tunnels typically demand:
In these scenarios, 21–25mm Premium or Promax panels are common choices, often with additional edge sealing and strict handling procedures to maximize life and maintain consistent concrete finish.
Rather than selling only by product name, FOMEX works with buyers to translate project data into thickness and grade recommendations. Typical inputs include structure type, maximum pour height, support spacing, climate, reuse targets and local formwork standards.
When needed, sample panels can be supplied for trial pours so contractors can confirm concrete finish, stripping behavior and reuse potential before committing to larger volumes.
To choose the right concrete formwork plywood, send FOMEX basic project information: structure type, expected reuse, climate, span/layout and preferred panel sizes. You will receive a tailored recommendation for thickness (9–30mm) and grade (Single / Standard / Premium / Promax) aligned with your risk level and budget.
Email: qc@fomexgroup.vn ☎ WhatsApp: +84 877 034 666 Website: https://fomexgroup.vn