Specify construction plywood with the installation in mind. Our factory manufactures panels for wall sheathing, roof decking, subfloors and bracing, with the grade, bond, thickness and cutting agreed for your project. Tell us the supports, exposure and required product documents so we can quote the panel your designer specifies and help plan sizes, packing and phased supply.
Buy full sheets or agreed cut panels directly from our factory. Share the panel schedule for each building stage; we confirm the construction, minimum quantity, packing and production timing in your quotation. Manufacturing time and shipping transit are planned separately.
The same plywood thickness can perform differently when support spacing, face-grain direction, edge support, openings or fixings change.
Transfers the project wall actions through the panel field, supported edges, fasteners and framing.
Forms the designed roof deck or diaphragm over rafters or trusses and beneath the specified roof build-up.
Carries the designed floor actions and provides the required substrate for the finished floor system.
Connects the panel field to boundary members, collectors and hold-downs in the lateral-force system.
Provides a specified plywood input for fabricated webs, gussets, box elements or other calculated components.
Combines structural support with the nominated impact, cleaning, fire or service-exposure requirements.
Provides a designed temporary deck, barrier or opening cover for a stated period and access duty.
Tell us the use, dimensions, thickness, quantity and destination. Add your specified grade, exposure and site date if known; the detailed checklist below helps coordinate the final panel with your designer's drawings.
State the building type and whether the panel serves wall sheathing, roof decking, subfloor, bracing, lining or an engineered component.
Identify the structural engineer, system designer, installer and purchasing contact for the project.
Provide gravity, wind, lateral and concentrated actions together with span, deflection and vibration criteria.
Show joists, studs, rafters, blocking, bearing widths, support centres and every supported panel edge.
State the face-grain direction required by the structural calculation and installation drawing.
Define supported edges, tongue-and-groove or blocked joints, expansion allowance and joint treatment.
Specify fastener type, material, corrosion protection, edge distance, field spacing, perimeter spacing and seating.
Map windows, doors, services, penetrations, trimmed edges and their framing requirements.
Describe expected construction wetting and the final dry, humid, protected-exterior or exterior service condition.
Name the plywood bond class, structural standard, grade or declared-property option required for the project.
Define wrapping, underlay, membranes, flashings, ventilation, drainage and the drying sequence.
State the treatment for factory edges, site cuts, holes, notches and damaged corners.
Confirm nominal thickness, finished sheet size, tolerance, conditioning and the agreed shipment moisture range.
List structural, fire, acoustic, thermal, emission and appearance requirements that affect panel selection.
Name the destination country, project specification, design code and approving project party.
Define checks at delivery, first installation, after weather exposure and before the assembly is covered.
State total volume, first shipment, phased deliveries, site storage limits and replenishment dates.
Provide the current drawing revision, approved sample requirements, product documents and change procedure.
Order plywood wall sheathing by the structural grade, panel layout and service exposure. Add the bracing or shear-wall requirements when the sheathing forms part of the lateral-force system.
List stud spacing, panel sizes and orientation, supported joints, window and door openings, and the framing around cut-outs. Keep the fixing zones clear on the cutting drawing.
Give the required panel properties, blocking and fastener schedule with boundary members, collectors and hold-downs. Roof and floor diaphragms transfer lateral actions to the resisting walls through these connections.
Coordinate the sheathing with membranes, flashings, cavity drainage, cladding and site-cut protection. If the plywood is the visible exterior finish, specify its siding profile and finishing requirements separately.
Compare Structural Plywood for the specified structural construction, or grooved plywood siding for a visible exterior surface. APA shear-wall and diaphragm guidance explains the connected system; product documents identify the plywood you order.
| Assembly | Required performance | Inputs to confirm | Panel selection | Project lead | Selection focus |
|---|---|---|---|---|---|
| Wall sheathing | Transfers the project wall actions through the panel field, supported edges, fasteners and framing. | Stud spacing, blocked joints, openings, face-grain direction, fixing schedule, exposure and cladding sequence | Structural Plywood | Engineer / wall-system designer | Select grade, thickness, orientation and fixings from the complete wall design. |
| Roof sheathing | Forms the designed roof deck or diaphragm over rafters or trusses and beneath the specified roof build-up. | Support spacing, edge support, roof slope, construction wetting, underlay, ventilation and fastening | Structural Plywood; Marine option when the project specifically requires it | Roof designer / engineer | Match panel span capability and connection details to the roof calculation. |
| Subfloor | Carries the designed floor actions and provides the required substrate for the finished floor system. | Joist layout, concentrated loads, tongue-and-groove or blocked edges, moisture, deflection and finish | Structural Plywood | Floor designer / engineer | Coordinate panel grade with joist layout, joints, openings and floor-finish requirements. |
| Bracing and diaphragms | Connects the panel field to boundary members, collectors and hold-downs in the lateral-force system. | Declared properties, boundary members, collectors, hold-downs, openings and fastening schedule | Structural Plywood with project-declared properties | Structural engineer | Use the project calculation to set racking resistance and fixing centres. |
| Engineered components | Provides a specified plywood input for fabricated webs, gussets, box elements or other calculated components. | Component drawing, machining, stress direction, bonding, inspection and traceability | Structural Plywood or a project-qualified construction | Component designer / fabricator | Qualify the finished component with its actual machining, bonding and load direction. |
| Industrial lining | Combines structural support with the nominated impact, cleaning, fire or service-exposure requirements. | Support, impact duty, exposed edges, finish, cleaning and fire requirements | Structural, Fire-Retardant or treated option matched to the specification | Project specifier | Coordinate structural performance with the visible finish and service environment. |
| Temporary protection | Provides a designed temporary deck, barrier or opening cover for a stated period and access duty. | Duration, pedestrian or plant access, support, restraint, weather and removal plan | Commercial or Structural Plywood matched to the temporary-works design | Site temporary-works responsible party | Set panel and support requirements from the site-specific temporary duty. |
The project engineer uses the selected panel properties and assembly geometry to set spans, loads and fixing centres.
Use this option for panels supplied with a named structural standard, grade identity and declared properties.
Use this option where the project calls for a defined marine construction and high-quality veneer and bond requirements.
Use this option where the project hazard or use class requires preservative-treated plywood.
Use this option where a named reaction-to-fire or assembly fire requirement forms part of the specification.
Use this option when the plywood is the visible grooved exterior siding rather than concealed sheathing.
Use the size guide to convert framing modules and cutting plans into efficient purchasable sheet formats.
Use the standards guide to align the product, destination market and project-document package.
Use the specification guide to turn drawings and performance criteria into a complete RFQ.
Use this guide to define appearance grade, veneer species, core quality and bond terminology.
Plywood subfloor panels carry the specified floor loads over the joists. A separate underlayment prepares the surface for the finish and does not replace the required structural deck.
Give joist centres, bearing width, concentrated loads, openings, deflection and vibration requirements. Order the structural grade, thickness and face-grain direction that match those inputs.
Specify square edges with blocking or the required tongue-and-groove profile, joint allowances, fixing and adhesive instructions. For factory-cut panels, list part sizes, holes, grain direction and drawing revisions.
State the finish, flatness, sanding allowance and moisture criterion before covering. Check whether the flooring system needs an additional underlayment, membrane or other substrate preparation.
For lightweight concrete over plywood, identify the topping product and thickness with your floor designer. Include its permanent weight and wet-placement loads, support layout and movement criteria. Follow the topping manufacturer’s instructions for substrate preparation, any primer or separating layer, joints and drying before the floor covering. Cement-based lightweight concrete and poured gypsum underlayment are different products; use the instructions for the selected system.
Compare a specified softwood plywood construction by structural grade and properties, not species alone. For the layer beneath the floor finish, see the flooring and underlayment guide. APA floor-system guidance explains panel selection within the floor assembly.
| Condition | Protection method | Panel specification | Installation check |
|---|---|---|---|
| Dry internal service | Keep panels dry during transport, storage and installation, then complete the building enclosure on schedule. | Specified structural grade, bond class and shipment moisture range | Check moisture, flatness, edges, supports and fixings before covering. |
| Construction wetting | Limit exposure time, shed standing water, ventilate the assembly and allow panels to dry to the project criterion. | Bond and exposure class matched to the expected construction period | Check edge condition, flatness and measured moisture after the wetting event. |
| Humid or protected external service | Coordinate membranes, flashings, cavities, ventilation and sealed edges as one protected assembly. | Panel exposure class and bond specification selected for the stated service condition | Check laps, penetrations, drainage paths and ventilation before covering. |
| Direct exterior exposure | Use a panel, coating or treatment system specifically selected for direct weathering and planned maintenance. | Exterior-use panel specification together with coating, treatment and system documents | Inspect surface, edges, fasteners, drainage and maintenance access at completion. |
| Site cuts and penetrations | Clean and dry exposed veneers, then apply the specified compatible edge-protection system at cuts, holes and notches. | Coating or treatment compatibility and application instructions | Check coverage and cure before the detail is covered. |
| Site storage | Store packs flat, off the ground and on aligned bearers; protect against rain while maintaining ventilation and drainage. | Delivery condition, bearer spacing, cover method and storage duration | Inspect geometry, trapped moisture and handling damage before installation. |
| Wetting, warp or edge swelling | Separate affected sheets, remove water, dry them evenly and assess flatness and edge condition against project criteria. | Product identity plus the agreed moisture, flatness and edge-acceptance limits | The project team assigns each affected sheet for use, repair or replacement. |
State the wall, roof, subfloor, bracing, lining or component duty and identify the project designer.
Share loads, span, support, deflection, vibration and serviceability criteria.
Locate framing, blocking, supported edges, penetrations, boundaries and collectors.
Describe construction wetting, final service conditions, drainage, ventilation and protection.
Choose Structural, Marine, Pressure-Treated, Fire-Retardant or another project-specified construction.
Name the product standard, design code, grade, declared properties and required documents.
Set face-grain direction, thickness, finished size, tolerance, moisture and machining requirements.
Complete joint, fixing, membrane, flashing, penetration and edge-protection details.
Check panel identity, construction, dimensions, moisture, appearance and accompanying documents.
Follow the project details and capture changes, repairs, cuts and significant weather events.
Check supports, joints, fastening, moisture, membranes, edges and panel identity.
Correct outstanding items and obtain project acceptance before the assembly is covered.
Specify plywood roofing panels with the structural grade, bond, thickness and dimensions required by the roof design. Plan the deck together with its framing, connections and weather protection.
Provide rafter or truss centres, bearing, roof slope, openings, panel direction and edge support. Include the project’s gravity, wind, snow and construction-load requirements rather than selecting a span from thickness alone.
State fastener type, corrosion protection, seating, perimeter and field spacing. Where the deck acts as a diaphragm, add the boundary, collector and wall-anchorage details from the structural design.
Describe delivery and construction exposure, roof underlay, ventilation, drainage and the covering sequence. Inspect moisture and cut-edge condition before closing the roof assembly.
If the specification names marine plywood for roofing, include the required structural properties and product documents as well as the marine construction. A marine designation is not a roof span or wind rating. APA roof-system guidance connects deck properties with the roof supports and fasteners.
Name the destination, product grade and required standard. We match the supplied panel documents to that requirement; your engineer uses the panel properties in the complete wall, roof or floor design.
For each required report or declaration, match the issuer, reference, standard and edition to the plywood construction, grade and declared properties in your order. Include any specified marking, treatment or finish. Keep those product details aligned with the current wall, roof or floor drawings and any permitted substitutions.
Ask for the specified EN 636 class and panel properties for the planned dry, humid or exterior service condition.
Plywood specifications for dry, humid and exterior conditions
For a European construction project, identify the required declaration, product characteristics and marking for the plywood being ordered.
Wood-based panels for use in construction
State the bond class and request the corresponding test information for the selected construction and exposure.
Plywood bonding test methods and requirements
Your engineer selects the design code and national provisions. BSI lists the 2025 edition as current and under review; UK first-generation Eurocodes remain applicable until 30 March 2028 unless the authority or project specifies otherwise.
Eurocode 5 timber-structure design rules
For an Australian or New Zealand project, give us the required structural grade and product documentation so the quotation matches the specification.
Structural plywood specifications
Use the engineer's design requirements to specify panel properties, supports and connections; the design code is separate from the supplied panel documents.
Timber structures design methods
For a North American project naming PS 1, request the product grade, required identifying marks and documentation for the ordered construction.
Structural plywood
Where rated sheathing is specified, identify the required rating and certification documents for the actual panel; APA guidance alone does not establish product certification.
Performance-rated wood structural panels and installation guidance
Specify an FSC-certified order if required and request the applicable certificate scope and claim on the sales documents.
Chain of Custody certification
Specify the required PEFC claim and request the relevant certificate and transaction documents with the order.
Chain of Custody of Forest and Tree Based Products
For US supply, confirm the panel category first. EPA excludes structural plywood and panels meeting its specified PS 1/PS 2 definitions; a European or Australian structural designation alone does not establish that exclusion. Covered hardwood plywood needs the applicable emissions documentation.
Regulatory scope option
State the required fire performance and installed construction. Request documents identifying the panel, thickness, mounting and field of application for that requirement.
Finished product or assembly fire-performance requirement
| Observed issue | Likely cause | Project impact | Corrective action |
|---|---|---|---|
| Unsupported panel edge | Joint or cut-out misses framing or blocking | Local deflection, damage or loss of designed load transfer | Show every edge and opening on the support drawing before ordering and installation |
| Wrong face-grain direction | Sheet orientation is decided during installation | Declared direction-dependent properties may not match the calculation | Mark orientation on drawings, packs and first-installation inspection |
| Fastener pattern drift | Generic site habits replace the engineer's schedule | Connection capacity and diaphragm behaviour may change | Provide the current fixing plan and inspect the first completed area |
| Over-driven fasteners | Tool setting or substrate condition is uncontrolled | Face damage, reduced head bearing or water entry | Set tools, check seating and record corrective action |
| Insufficient edge distance | Openings or field cuts crowd the fixing line | Edge splitting and weak connection | Coordinate cut-outs, framing and fixing zones before fabrication |
| Trapped construction moisture | Covering proceeds before the panel and cavity dry | Swelling, mould risk, finish failure or dimensional movement | Measure and record the project moisture criterion before close-up |
| Standing water | Drainage or temporary protection is incomplete | Edge wetting and prolonged saturation | Provide drainage, remove water and reinspect affected areas |
| Unsealed site cuts | Cut edges, holes or damaged corners are left exposed | Moisture reaches veneer edges and interfaces | Clean, dry and reseal with the specified compatible system |
| Material substitution | A visually similar sheet replaces the approved construction | Properties, bond, dimensions or project documents no longer match | Verify product identity, lot and documents at delivery |
| Missing boundary members | Diaphragm or bracing details stop at the panel field | The load path is incomplete around edges or openings | Engineer the boundary members, collectors and hold-down connections |
| Membrane / flashing discontinuity | Interfaces are not coordinated with sheathing installation | Water enters the assembly despite a suitable panel | Inspect laps, penetrations and transitions before enclosure |
| Premature close-up | Inspection records are incomplete | Hidden defects cannot be corrected efficiently | Use a signed inspection of supports, fixes, moisture and protection |
| Uneven storage support | Bearers are misaligned, too widely spaced or allow sheet ends to hang | Panels can bow, twist or suffer local edge damage before installation | Store flat, off ground and fully supported; check geometry before installation |
| Drawing revision not transferred | Purchasing or installation works from a superseded issue | Panel direction, openings, support or product documents can conflict with the current design | Match the purchase order, cutting file and site checklist to the current drawing revision |
Start with the assembly use, sheet or cut dimensions, thickness, quantity and destination. Add the structural grade, bond class, required documents and site date when known. We confirm the supplied construction, processing, minimum quantity, packing, production timing and shipping terms before you order.
Regular sizes: 1220×2440, 1250×2500, 1525×3050 mm. On request: 1250×3050, 1250×3660, 2100×2800, 1830×3660, 1250×3800 mm. Order the required format with the structural grade, finished thickness, tolerances and product documents for your assembly.
If the core, bond or grade is not yet decided, tell us the use and ask for advice. We can compare constructions while you complete the panel schedule and design requirements.
Compare quotes on the same construction and panel schedule, with currency, price per sheet or finished part, machining, required testing, labels, packing and a delivery term with a named delivery point. For phased or repeat orders, retain the drawing revision, face-grain direction, part codes and agreed product properties.
Prepare a part list for cut-to-size panels, supply dimensions for CNC openings and profiles, and plan moisture protection for storage and installation.
Want to compare a panel first? Request the construction you need and tell us whether you are checking the face, core, cut edges, machining or fit. We confirm preparation time, sample and courier costs. Assembly loads and fixing requirements remain with your project designer.
Tell us the destination and preferred delivery term. We confirm the named delivery point, packing and shipping arrangements in your quotation. Email: sales@cuziplywood.com
Before the purchase order
Separate wall, roof, floor and bracing uses, then use the designer's required panel properties, support spacing, fixing and exposure details for each. The same thickness is not automatically suitable everywhere. We quote the corresponding construction, sheet or cut sizes and documents so you can compare the actual supply, not thickness alone.
Send that requirement with the destination and intended use. We check the available product documents against the proposed construction, including the report or declaration scope and any applicable marking. Your designer or project authority confirms that the panel and installed assembly meet the project requirement before final selection.
Tell us the quantity and panel mix for each stage, required site dates and delivery point. We discuss production timing, shipment arrangements, labels and packing so the quotation identifies each supply batch. Transit and site delivery are confirmed separately from manufacturing time; phased deliveries must be agreed with the order.
Construction plywood is a practical category covering wall sheathing, roof decking, subfloors, bracing, temporary works and selected engineered components. A complete specification adds the structural product standard or declared-property option, grade, veneer construction, face-grain direction, thickness, support geometry, bond class, exposure, moisture target, dimensions and required project documents.
Construction plywood describes the intended building use, while Structural Plywood identifies the orderable panel construction for projects that require named structural properties and controlled production. The application drawing defines loads, spans, supports, joints and fixings; the product specification defines the panel construction, grade, dimensions and accompanying documents.
One configuration can serve several duties when the project designer confirms that its declared properties, thickness, orientation, supports, joints, openings, fastening, exposure and serviceability satisfy each assembly. Quotations should therefore list every intended duty instead of assuming that one sheet specification covers them automatically.
The project engineer or system designer sets these values from the design loads, panel properties, face-grain direction, framing geometry, connection design and governing code. CUZI PLY supplies the nominated panel construction, dimensions and product documents so they can be matched to that design.
Include roof slope, rafter or truss spacing, supported edges, openings, wind and construction loads, face-grain direction, panel thickness, fastener type and spacing, expected wetting period, underlay, ventilation, drainage and the required structural product standard.
Include joist spacing and bearing width, concentrated loads, deflection and vibration criteria, tongue-and-groove or blocked edges, openings, adhesive and fixing method, construction moisture, flatness, sanding allowance, finished-floor interface and the inspection point before covering.
An 8–12% shipment moisture target is commonly specified for many dry export constructions. The final purchase requirement should match veneer species, panel construction, destination climate, transport duration and the condition expected at installation. Site acceptance should use the project's measuring method and close-up criterion.
Remove dust, allow exposed veneers to dry, then apply the specified compatible edge sealer or treatment to the required coverage. Pay particular attention to end grain, fastener penetrations and horizontal water traps, and check the repaired detail before membranes or finishes cover it.
Plan a limited exposure period with wrapped delivery, raised storage, drainage, ventilation and prompt enclosure. After rain, remove standing water, allow even drying and check moisture, flatness, edge swelling and fastener seating before applying underlay, flooring or interior finishes.
Start with the wall, roof or floor use, sheet or cut dimensions, thickness, quantity and destination. Include the specified grade, standard and required site date if known. We quote the construction, processing, minimum order quantity, packing and production timing for your order; your engineer's support and fixing details help match the panel to the assembly. You can discuss options before completing the full project checklist.
Use marine plywood when the roof specification requires that construction, and provide the structural properties, grade and documents needed for the roof. A marine designation describes the panel requirements; it does not set roof spans or wind resistance. Agree the support layout, fixing, weather protection and roof covering with the roof designer.
Send the structural grade and properties, framing and blocking, panel layout, openings, fixing schedule and the boundary-member, collector and hold-down details. Wall bracing and roof or floor diaphragms work through the connected assembly. We supply the specified plywood and agreed processing; the project designer sets the lateral-force design and connections.
It can form part of a specified floor assembly, but choose the topping with its manufacturer and your floor designer. Provide the topping type, thickness, permanent and wet-placement loads, joist layout and permitted movement. Confirm substrate preparation, any primer or separating layer, joints, drying and the floor-covering requirements. Cement-based lightweight concrete and poured gypsum underlayment have different instructions. We supply the specified plywood rather than a universal pour thickness or floor capacity.
A pine, spruce or other softwood construction can be specified when its structural grade, declared properties, bond, thickness and dimensions meet the floor requirements. Species alone is not a span rating. State the support layout, joints, loads, moisture exposure and floor finish, then compare the supplied construction and documents with your designer.
Yes. Start with the wall, roof or floor use, dimensions, thickness, quantity and destination. Share any existing panel schedule or project requirement and tell us where you need advice. Our factory team helps compare constructions and prepare the quotation; the final panel properties and assembly design are agreed before the order.
Talk directly to our factory
Tell us what you’re making, the quantity and destination. Our team will help you choose a panel and prepare a quote.