Most buyers first meet WPC Foaming Solid Board through its catalog specifications — standard thicknesses, standard widths, standard colors. But a growing share of real-world projects don't fit that mold. Architects need a 22mm board for a curved reception desk. A boatyard needs a marine-grade formulation that shrugs off salt spray. An exhibition contractor needs panels cut to an odd 1,350mm width with zero lead time flexibility.
In manufacturing terms, "standard" WPC Foaming Solid Board refers to the dimensions, densities, and finishes a factory keeps in regular production — for Bingochic's WPC Series, that means thicknesses of 6mm, 10mm, 12mm, 15mm, and 18mm, widths of 1220mm or 1500mm, and lengths of 2440mm or 3050mm. A "non-standard" order is anything that deviates from that baseline: a custom thickness between the standard steps, an oversized or undersized panel to match an existing wall module, a non-catalog density for structural load-bearing use, or a flame-retardant grade upgraded beyond the base Class B1 rating.
Non-standard doesn't mean experimental. It means the core WPC formulation — wood fiber, PVC resin, and a foaming agent — is re-engineered at the batching and extrusion stage to hit a specific density, thickness, or performance target that a project requires. Understanding how those three variables interact is the first step to specifying a custom order correctly.
WPC Foaming Solid Board is produced with an extrusion foaming process: wood fiber and PVC are compounded, then a foaming agent introduces a controlled cellular structure through the board's core. The degree of foaming determines density, and density is the single variable that most affects strength, weight, screw-holding capacity, and cost. Standard production sits in the 0.55–0.75 g/cm³ range. Pushing density lower reduces weight and cost but sacrifices screw and impact resistance; pushing it higher (up to roughly 0.85–0.90 g/cm³ in denser non-standard formulations) improves structural rigidity and fastener retention at the expense of added weight — a trade-off worth discussing with your supplier before locking in a non-standard spec.
| Parameter | Standard Range | Non-Standard / Custom Range | Typical Driver |
|---|---|---|---|
| Thickness | 6 / 10 / 12 / 15 / 18mm | 3mm–25mm, in-between steps | Furniture edging, structural panels |
| Width | 1220mm / 1500mm | Up to 1560mm, project-matched | Retrofit wall modules, seamless cladding |
| Density | 0.55–0.75 g/cm³ | Up to ~0.90 g/cm³ | Load-bearing furniture, marine decking |
| Fire Rating | Class B1 | Enhanced flame-retardant additive package | Hotels, public venues, exhibition halls |
| Surface Finish | Smooth, matte, wood grain | Custom texture, color-matched laminate | Brand-specific retail and hospitality fit-outs |
| Color | White, grey, brown, wood-like | Pantone/RAL-matched batch coloring | Corporate or brand-consistent interiors |
Marine and outdoor decking. Standard board resists moisture well, but continuous saltwater exposure calls for a denser, higher-PVC-ratio formulation with UV-stabilized additives. This is a common non-standard request for boat interiors, dock furniture, and coastal balustrades — applications where the Foaming Solid Board category is specifically chosen over solid wood because it won't swell, rot, or attract termites.
Curved and complex furniture components. Cabinetry with rounded edges or compound curves often needs a thinner, more flexible non-standard gauge (commonly under 6mm) that can be heat-formed without cracking, then backed by a rigid standard-thickness core for structural support — a two-tier build that a standard single-spec panel can't achieve alone.
Exhibition and signage panels. Trade show builds run on tight timelines and unconventional dimensions. Non-standard widths matched to booth modules, combined with a lighter density for easier transport and assembly, are typical here — this is also where the board's easy-machining property (clean CNC routing without splintering) matters most, since graphics and cut-outs are often intricate.
Fire-rated public interiors. Hotels, restaurants, and public venues frequently require fire performance beyond the base Class B1 rating. This is achieved by adjusting the flame-retardant additive loading during compounding rather than by changing the board's core structure — an important distinction, since it means fire rating can usually be upgraded without changing the panel's dimensions or weight class.
Non-standard boards — particularly higher-density or thinner-gauge formulations — behave slightly differently under tooling than catalog-standard panels. Denser boards hold screws more securely but generate more heat during cutting, so slower feed rates and sharp carbide blades reduce edge melting. Thinner custom gauges (under 6mm) are more prone to flexing during CNC routing and benefit from full-surface vacuum bed support. As with standard board, pre-drilling for screws is recommended, and a flat, clean substrate is essential for adhesive installation. For general handling, cutting, and finishing guidance that applies across the range, see the Foaming Solid Board product category, or explore related composite options in the BPC Series and CPC Series if your project needs a different fiber-resin balance.
When specifying non-standard density or structural performance, it helps to evaluate boards against a consistent framework rather than marketing claims alone. ASTM D7031, the industry guide for evaluating mechanical and physical properties of wood-plastic composite products, covers test methods for density, flexural strength, water absorption, and related properties, and is a reasonable reference point when comparing custom formulations across suppliers or verifying a non-standard order meets a project's structural requirements.
Does a non-standard order cost significantly more?
Custom dimensions and densities typically require dedicated line setup, so minimum order quantities are usually higher than for catalog-standard stock. Pricing depends on the deviation involved — a mid-range custom thickness is a smaller adjustment than a full density or fire-rating change.
Can fire rating be upgraded without changing the board's other properties?
Generally yes. Flame-retardant performance is primarily controlled through the additive package during compounding, so it can usually be adjusted independently of thickness or surface finish.
Is a denser non-standard board always the better choice?
Not necessarily. Higher density improves strength and screw-holding but adds weight and cost. For purely decorative, non-load-bearing applications, standard density is usually the more cost-effective choice.
For more product-specific technical answers, the FAQ page covers common questions across the full product range.
