---
product_id: 53132806
title: "5 Roof Panels J1-5 for Gardman Polycarbonate Greenhouse 617 x 1140mm"
brand: "greenhouse warehouse"
price: "$382"
currency: NZD
in_stock: false
url: https://www.desertcart.nz/products/53132806-5-roof-panels-j1-5-for-gardman-polycarbonate-greenhouse-617
store_origin: NZ
region: New Zealand
---

# 100x stronger than glass UV-stabilised Easily cut with hobby knife 5 Roof Panels J1-5 for Gardman Polycarbonate Greenhouse 617 x 1140mm

**Brand:** greenhouse warehouse
**Price:** $382
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Elevate Your Greenhouse Game!

## Quick Answers

- **What is this?** 5 Roof Panels J1-5 for Gardman Polycarbonate Greenhouse 617 x 1140mm by greenhouse warehouse
- **How much does it cost?** $382 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/53132806-5-roof-panels-j1-5-for-gardman-polycarbonate-greenhouse-617)

## Best For

- greenhouse warehouse enthusiasts

## Why This Product

- Trusted greenhouse warehouse brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Perfect Fit:** Slightly wider design for a snug fit, minimizing wind dislodgement.
- • **UV Protection:** Stay worry-free with UV-stabilised panels that resist yellowing.
- • **Unmatched Durability:** Experience 100x the strength of glass, ensuring your greenhouse stands the test of time.
- • **Effortless Replacement:** Designed specifically for Gardman Greenhouses, ensuring a seamless upgrade.
- • **Customizable Convenience:** Easily cut to size for tailored ventilation solutions.

## Overview

The Gardman Polycarbonate Greenhouse Roof Panels (J1-5) come in a pack of 5, each measuring 617 x 1140mm. Made from 4mm twinwall polycarbonate, these panels are 100 times stronger than glass and UV-stabilised to prevent yellowing. Their slightly wider design ensures a tighter fit, reducing the risk of dislodgement in windy conditions. They can also be easily customized with a hobby knife for specific ventilation needs.

## Description

Virtually unbreakable 4mm thick twinwall polycarbonate sheet from Greenhouse Warehouse.

## Features

- Pack of 5 Sheets of 4mm Twinwall Polycarbonate - 100x stronger than glass
- 617 x 1140mm (24.25" x 45") each sheet - UV-stabilised means that it won't go yellow
- Replacement Roof Panel for Gardman Greenhouses, part J1-5
- Slightly wider than normal 610mm, for a better, tighter fit = less likely to be dislodged in wind
- Can easily be cut with a hobby knife, if you need to make a panel for the roof vent or beneath the roof vent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Greenhouse Warehouse |
| ASIN | B01N7E3NPV |

## Product Details

- **Brand:** Greenhouse Warehouse
- **Cover material:** Polycarbonate (PC)
- **Number of doors:** 1
- **Manufacturer:** Greenhouse Warehouse

## Images

![5 Roof Panels J1-5 for Gardman Polycarbonate Greenhouse 617 x 1140mm - Image 1](https://m.media-amazon.com/images/I/41inWOOJKLL.jpg)
![5 Roof Panels J1-5 for Gardman Polycarbonate Greenhouse 617 x 1140mm - Image 2](https://m.media-amazon.com/images/I/51vYMKizpgL.jpg)

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**Shop now:** [https://www.desertcart.nz/products/53132806-5-roof-panels-j1-5-for-gardman-polycarbonate-greenhouse-617](https://www.desertcart.nz/products/53132806-5-roof-panels-j1-5-for-gardman-polycarbonate-greenhouse-617)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*