Heavy-Duty 20mm Custom Plywood: Preventing Structural Deformation in Bridge & Water Conservancy Projects

When pouring mass concrete for elevated highway piers, deep foundation basements, bridges, and water conservancy dams, standard formwork panels face immense hydrostatic pressure. Under these heavy hydraulic loads, thinner boards bend, leading to concrete dimensional errors and safety hazards. NQ Formwork Plywood Co., Ltd. manufactures extra-thick 20mm Custom Heavy-Duty Formwork Panels engineered for high-stress civil engineering applications.
The Structural Engineering Advantages of 20mm Extra-Thick Panels
-
Maximum Flexural Strength & Structural Rigidity: By increasing core density and adding cross-laminated eucalyptus plies up to 20mm, panel deflection under wet concrete weight is reduced to near zero, maintaining pristine structural alignment.
-
15 to 20 High-Load Reuse Cycles: Bonded with premium phenolic surface film and our self-made high-density internal glue, our 20mm heavy-duty plywood easily achieves 15 to 20 reuses even under repeated high-pressure pours.
-
Smooth Concrete Release for Fair-Face Finishing: Bridge columns require smooth, non-porous concrete surfaces. Our hot-pressed phenolic film creates a mirror-like release, eliminating expensive post-pouring hand plastering.
Formwork Application Matrix by Thickness
-
10mm – 12mm Formwork: Light slab casting, curved formwork, residential housing (6–8 reuses).
-
14mm – 15mm Formwork: Standard commercial building floors, residential columns, and wall panels.
-
18mm – 20mm Heavy-Duty Formwork: Bridges, high-rise core walls, highway piers, and water conservancy projects (15–20 reuses).
Tailored Manufacturing by NQ Formwork Plywood Co., Ltd.
Available in standard sizes including 2440×1220mm, 1830×1220mm, and 1830×915mm, our 20mm extra-thick formwork is custom-trimmed with sanded tolerances under ±0.5mm. We deliver robust, factory-direct solutions for contractors in the Middle East, Southeast Asia, and worldwide.
Consult Our Engineering Team for 20mm Heavy Formwork Inquiries:
-
WhatsApp / Hotline: +86 19977575391
-
Business Email: cn8619977575391@gmail.com
-
Factory Address: No. 1, Industrial Road, Batang Industrial Park, Gangnan District, Guigang City, Guangxi, China


2 comments
ezodnmreye
2026-08-26 at 00:34
xyzehtgglmrkuvlzrjmykgelgkijsx
adminer@qq.com
2026-09-07 at 03:19
Our factory produces construction plywood in the following sizes:
1220 × 2440 mm
1830 × 915 mm
1830 × 1220 mm
The thickness can be customized according to your requirements.