Rowlinson Hardwood Coldframe

The Rowlinson Hardwood Coldframe is a beautifully designed growing solution for gardeners who want to give their seeds and young plants the best possible start. This premium coldframe doubles as a storage unit, combining practicality with durability and offering a compact but highly effective environment for early-season growing. Crafted from Eucalyptus hardwood, this coldframe is naturally resistant to rot and decay, making it significantly more durable than alternatives made from softwoods like Chinese fir. The hardwood construction ensures that this unit remains strong and weather-resistant, even with frequent outdoor use over the years. The frame is fitted with twin-walled polycarbonate glazing, which provides excellent insulation and protection for your plants. It helps to diffuse light evenly and block harmful UV rays, so there’s no need to apply shade paint. Inside, you’ll find two shelves to organise your plants at different stages of growth. Access is easy thanks to a single front door for the lower shelf and a lifting lid for the top section. The lid includes a stay with adjustable height settings, allowing you to regulate ventilation while also giving quick access to your plants. With a 147-litre capacity, this compact unit provides plenty of room for seedlings, herbs, and small crops—all while maintaining a small footprint in your garden or on your patio.

Key Features:

Dual-purpose coldframe and storage unit Made from Eucalyptus hardwood – naturally rot- and decay-resistant More durable than coldframes made from softwoods or fir Twin-walled polycarbonate glazing for insulation and UV protection Two shelves for organised plant growing Lifting lid with adjustable stay for airflow control Single front door for access to the lower shelf 147-litre capacity for generous storage/growing space Easy to assemble with full instructions included External Dimensions: H800 x W600 x D610 mm Door Opening: H470 x W530 mm Shelf Size: W550 x D515 mm

FAQs

What makes this coldframe more durable than others?

This coldframe is built from Eucalyptus hardwood, which is naturally more resistant to rot, pests, and decay than softer, cheaper woods like Chinese fir or pine.

Is the glazing safe and effective for young plants?

Yes, the twin-walled polycarbonate helps to insulate and diffuse light while blocking harmful UV rays—ideal for promoting healthy plant growth without scorching.

Can the lid be adjusted for ventilation?

Absolutely. The lifting lid includes a stay with adjustable height settings so you can control air circulation and access your upper plants easily.

Check out our full range of garden supplies.

Browse more cold frames available online.

At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

We work with many of the industry's leading manufacturers to bring you trusted products that meet the highest standards of quality and performance. Our team is passionate about providing excellent customer service, competitive pricing and a straightforward shopping experience from start to finish.

When you shop with JJ Building Materials, you can expect:

• Competitive prices on leading brands and quality products.
• Nationwide delivery across the UK
  
• A constantly expanding range of building and landscaping materials.
  
• Friendly, knowledgeable customer support.
  
• A trusted business backed by the JJ Roofing Supplies Group.
  

Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.