Our company is largely CO₂-neutral. The majority of our value chain – from raw material procurement through production to delivery – is based on regional, closed-loop processes. We rely on local robinia wood, short transport routes, and energy-efficient production at our site in Germany.The low CO₂ emissions that nevertheless occur are offset through targeted carbon offsetting measures. In this way, we contribute to environmentally friendly and sustainable business practices – both in our products and throughout the company.

Sustainability is a central principle of our actions – both in our products and throughout the company. Our playground equipment is characterized by an exceptionally long service life, based on the use of regionally sourced robinia wood, which does not require chemical wood preservatives. Manufactured exclusively in Germany – this ensures quality, saves transport routes, and strengthens regional economic cycles.

We also focus on repairability, modular construction, and refurbishable systems – instead of replacement and disposal. Our equipment can be adapted, supplemented, or revised even decades later.

But sustainability at SIK-Holz means even more: We take responsibility for our employees, secure long-term jobs, invest in training and development, and operate a stable and future-oriented business. For us, sustainability doesn’t end with the product – it permeates our entire approach.

Yes – we are also certified for PEFC™-certified projects. We can supply PEFC™-certified equipment and systems if this is required or desired for your project. Simply let us know when you enquire or plan so we can include appropriate materials and certification.

Yes – SIK-Holz is FSC^®-certified as a company. This means we can supply complete systems and individual devices with the FSC^® seal, if desired or necessary for the project requirements. Please let us know early in the planning process so that we can provide the relevant materials and documentation.

Post shoes are often recommended as structural wood protection – with the goal of preventing the wood from coming into direct contact with the ground. However, this requirement dates back to a time when robinia was still largely unknown as a wood species.

Today we know: robinia wood is extremely durable, resilient, and ideally suited for direct installation in the ground – without chemical wood preservatives and without additional metal connections. For this reason, we generally advise against using post shoes for robinia structures.

In addition to the unnecessary material and installation costs, post shoes are ecologically detrimental and often lead to additional maintenance costs: The connection between wood and metal represents a potential weak point and must be continuously monitored and maintained. Even statically loaded systems function significantly better with in-ground installation made of robinia wood – they are more robust, more durable, and with fewer complications.

In short: If you use robinia, you don’t need post shoes – in fact, they would do more harm than good to the “Mercedes of wood.”

Wood has character. Every tree is unique – with its own structure, color, and shape. These differences are not a defect; they make each piece of playground equipment special. Different colors, branch patterns, or natural curves are part of the intended design – honest, vibrant, and individual.

A playground’s lifetime – or 1,000 years, as we like to say. Many of our first robinia equipment are still standing after more than 35 years. Good wood selection, professional installation, and regular maintenance are crucial. We offer a 15-year stability guarantee for vertical wooden structures in underground structures.

No – our robinia wood is not chemically treated or impregnated. It is naturally durable. We only use colored varnishes where it makes sense from a design perspective. These are more for child-friendly design and also provide UV protection – but they are not a classic wood preservative.

Around 70% of our robinia wood comes from Germany – a large portion of it directly from Brandenburg and the neighboring federal states. We source additional assortments and specific raw materials from other European countries, such as Hungary. We focus on regional availability, short transport routes, and responsible forestry.

Robinia wood is technically impressive due to its high strength, density, and natural durability – without the need for chemical wood preservatives. At the same time, it captivates the senses with its vibrant, charming growth. There are no straight lines in nature – that’s why this wood is a perfect fit for us. And we are a perfect fit for it.

Robinia is the ideal wood for outdoor play equipment – ​​durable, weatherproof, and resistant to fungi and insects, all without chemical treatment. It mostly comes from sustainable forestry in Europe. Its vibrant grain and natural shape make it ideal for creative play space design. In short: robinia fits perfectly with our philosophy – it is robust, natural, and versatile in design.

We use exclusively robinia wood for all load-bearing and structural elements: posts, squared timbers, rafters, joists, and all types of boards. We only use oak for large sculptures – for the simple reason that robinia, by its very nature, does not produce sufficiently large diameters (max. approx. 35 cm of usable heartwood). Robinia impresses with its natural resilience, durability, and ecological sustainability.