1.2 mm galvanised steel reinforcement at structural timber nodes.
Why Waldenhaus
Built around the parts that usually fail first.
A garden structure is judged in February, not on delivery day. Waldenhaus starts with the joint, the glazing fix, the anchor and the published terms, then designs the greenhouse around them.
- 1.2 mm
- Galvanised steel reinforcement at timber joints
- 4 mm / 6 mm
- Twin-wall polycarbonate, specified by range
- 20 yr+
- Workshop greenhouse-making experience
01 · Operating standard
A quieter standard for a harder-working greenhouse.
A greenhouse has to make sense at the points under load: the joint, the glazing fix, the anchor and the base. Waldenhaus starts there, then gives the structure the calm garden presence it needs.
That is why the site keeps returning to specific numbers. A buyer should be able to judge the greenhouse before it reaches the garden.
Screw-fixed twin-wall polycarbonate, specified by greenhouse range.
Warranty and return wording published before the order decision.
02 · Proof system
Six decisions you can inspect before buying.
Each point below ties the claim to a build detail, a published term or an included part, so the choice is based on construction rather than decoration.
Frame logic
Galvanised steel at the node, not just timber meeting timber.
NORDIC uses 45 x 45 mm FSC Swedish pine with 1.2 mm galvanised steel angle brackets at structural joints. The visual language stays quiet; the joint does the work.
Glazing
Screw-fixed panels.
The panels are mechanically fixed, so the glazing system is clear, inspectable and easy to understand before installation.
Anchoring
Ground anchors included as standard.
The sensible fixing should not feel like an afterthought. Every greenhouse range is built around anchoring as part of the system.
Terms
Warranty wording is visible before checkout.
The NORDIC and SteelRoot warranty lines are quoted in full on the page, so the terms can be judged before the order.
Workshop
Built by a 20-year workshop.
The product starts with repeatable greenhouse-making experience, then a UK team handles range choice, service, warranty and parts.
Weather register
Designed for the garden after the first season.
The page is not built around perfect-weather photography only. British garden structures need to make sense in wet paths, cold mornings and long periods of use.
03 · Materials, not adjectives
Wood and steel are treated as systems, not styles.
NORDIC and SteelRoot look different because they solve different garden problems. NORDIC brings timber warmth into a domestic garden. SteelRoot uses a galvanised arch for longer, more exposed growing plots. The shared standard is the same: screw-fixed glazing, anchored frames, published terms.
NORDIC
45 x 45 mm FSC Swedish pine.
For gardens where the greenhouse should feel permanent, warm and architectural without pretending to be a heritage glasshouse.
See NORDIC
SteelRoot
Closed-section galvanised steel arch.
For longer rows, exposed plots and growers who want the frame geometry to do more of the weather work.
See SteelRoot
04 · Published terms
The conditions are part of the product.
For a considered garden purchase, the terms should not appear only after checkout. Waldenhaus publishes the warranty wording, return window and parts-support logic before the order decision.
NORDIC
"10-year anti-rot frame warranty (conditional on re-treating timber with any UK-purchased wood preservative every 2 years) + 2-year polycarbonate panel warranty (manufacturer defects)"
SteelRoot
"2-year manufacturing defect warranty on cellular polycarbonate panels + 10-year anti-corrosion warranty on the galvanised steel frame"
14 days from delivery.
Unused and in original packaging. Customer pays return shipping. The route is clear if the structure does not suit the garden.
05 · Choose the right structure
Start with the garden condition, then choose the frame.
Choose NORDIC.
Timber presence, warm garden-room character, five sizes from 8 x 6 ft to 8 x 20 ft, and 4 mm CrystalLight twin-wall polycarbonate.
See NORDICChoose SteelRoot.
Galvanised arch geometry, 6 mm twin-wall polycarbonate and a quieter engineering register for serious growing rows.
See SteelRoot
Still choosing?
Talk through the garden before you choose the frame.
Share the site, base and growing plan. We will point you to the simpler range choice, even if that means a smaller greenhouse.