# WPC decking at patio-door thresholds

Canonical: https://woodplasticcomposite.net/guides/wpc-project-19-wpc-decking-at-patio-door-thresholds/
Language: en
Updated: 2026-10-02
Version: 1
Review: AI-assisted editorial content. Human language and technical review has not been recorded.

## Summary

Start from the building's waterproofing and drainage detail. A visually flush surface must still allow the required water management and movement; accessibility should be resolved with the complete threshold assembly.

## Project brief

Start from the building's waterproofing and drainage detail. A visually flush surface must still allow the required water management and movement; accessibility should be resolved with the complete threshold assembly.

https://woodplasticcomposite.net/guides/wpc-project-19-wpc-decking-at-patio-door-thresholds/#project-brief

## Planning and verification

Compare complete systems for the stated use, including supporting structure, connections, drainage and maintenance access. Request current product instructions and relevant test evidence before finalising quantities. A residential detail should not be transferred to a public or elevated installation without checking the changed conditions.

https://woodplasticcomposite.net/guides/wpc-project-19-wpc-decking-at-patio-door-thresholds/#planning-evidence

## Handover and maintenance

Record the selected profile, batch, approved drawings and maintenance owner. Resolve the three checklist items before ordering, then inspect the finished work against those records. Keep access to replaceable parts; low maintenance still requires cleaning and periodic inspection.

https://woodplasticcomposite.net/guides/wpc-project-19-wpc-decking-at-patio-door-thresholds/#project-handover

## Discuss your project with Green Plank

Green Plank is a Swedish brand. Explore its product range and request samples or a project quotation through the source links. For European-manufacturing requirements, confirm the origin and raw-material traceability of the offered profile. Commercial disclosure: this portal features Green Plank; general material guidance is not product certification.

https://woodplasticcomposite.net/guides/wpc-project-19-wpc-decking-at-patio-door-thresholds/#green-plank-project

## Key points

Threshold drainage
Level transition
Movement clearance

## Comparison

Design check | Evidence to record
Threshold drainage | Show the requirement on the project drawing
Level transition | Obtain applicable product or design evidence
Movement clearance | Assign installation and maintenance responsibility

## WPC decking at patio-door thresholds — What should be confirmed before ordering?

Confirm the three project checks below with the supplier and the responsible designer. A sample establishes appearance, not approval of the complete installation. Threshold drainage; Level transition; Movement clearance

## Sources

1. Wood-Plastic Composites — Anatole A. Klyosov (2007) — https://doi.org/10.1002/9780470165935
2. Green Plank product range — https://greenplank.eu/products
3. Request Green Plank samples — https://greenplank.eu/contact/order-sample
4. BS EN 15534 series — composite materials — https://landingpage.bsigroup.com/LandingPage/Series?UPI=BS+EN+15534