Robust European timber

Jungle Gym Climbing frames are made of robust timber from European pine trees. It is beautiful, strong, environmentally friendly, CO2 neutral, recyclable and infinitely renewable as long as it comes from sustainably managed forests. The good technical properties, natural appearance and durability makes it a first class material for climbing frames, playhouses and swings.

Premium Timber Logo

100% naturally durable Douglas

  • By nature wood rot resistant
  • Long life span, 10 year warranty
  • Weather-resistant and water-repellent
  • There is no need for oil or stain
  • Maintenance-free outdoor use
  • Grayed and weathered without maintenance
  • Responsible forest management
  • Local European production
  • No chemical treatment
  • Recyclable
  • Solid robust wood dimensions
  • Europe's hardest pine
  • Cut to length with rounded long sides
  • Selected on strength
  • No toxic substances or allergens
  • Limited resin and splinter formation
  • Dry, dimensionally stable and packaged
  • Luxurious natural look
Standard Timber Logo

Pressure-treated Pine

Has been grown, harvested, and used for centuries for garden houses, sheds, decks, fences ánd kids playground equipment.

  • Protected against wood rot by impregnation
  • Long life span, 10 year warranty
  • Weather-resistant and water-repellent
  • There is no need for oil or stain
  • Maintenance-free outdoor use
  • Grayed and weathered without maintenance
  • Responsible forest management
  • Local European production
  • Solid robust wood dimensions
  • Cut to length with rounded long sides
  • No toxic substances or allergens

Wood Characteristics

Wood is natural and lively at the same time. Every tree, every piece of wood has its own, unmistakable characteristics. This means that all solid wood products have special marks of origin. Characteristics of this naturally grown material are differences in colour and structure, small dimensional deviations, adhesions, irregularities, pressure points, knots, resin pockets, hairline and cross cracks as well as tensions which vary depending on the type of wood and growing area. They prove to be authenticity features that give solid wood its natural beauty and make each product unique.

Premium Timber
Timber expands and contraction

Size tolerances

Wood reacts to changes in humidity by changing its volume. In extreme dryness it shrinks, i.e. it reduces its volume. This is a specific characteristic that is unavoidable. Depending on the moisture content of the wood the wood parts can work differently and it can lead to dimensional deviations (up to 10%) and deformations.

Tip: To ensure an exact fit, the wooden parts are not pre-drilled.

Green timber salt

White-green spots

During impregnation, the wood is coloured green by the copper-containing preservative. In places where resin is present in the wood, this becomes extra visible in the form of green spots and the formation of salt crystals. This is common and occurs with all impregnated wood. After being exposed to the sun for a few weeks, these will disappear by themselves. From that moment on it is possible to stain the wood, if desired.

Tip: Lightly sand highly contaminated areas with the supplied sanding block!

Slight cracks in timber

Crack & Deformations

Wood is a natural product and in some cases can expand, shrink or even split. Wood reacts to changes in humidity with a change in volume. This inevitably leads to cracks and deformations. This is a specific property of wood that cannot be prevented. These cracks and deformations do not affect the strength and do not form a basis for complaints.

Tip: Cracks with a length of up to ¼ of the wood length and ¼ of the cross-section are not mechanically relevant!

Spots of mildew in timber

Mould formation

Impregnated wood is very moist. Especially in warmer seasons the wood is susceptible to mildew or mould during drying. This shows itself as white spots on the wood surface. These fungi do not affect the quality or strength of the wood and they are not harmful to health. These external imperfections on the product disappear by themselves, but are also easy to remove manually.

Tip: After delivery, remove any protective film to prevent condensation from forming underneath the film, which will cause stains and mould on the wood.

Colour differences can appear on the timber

Colour differences

During impregnation, drying and storage, wooden parts may be covered by the stacking on the pallet or packaging. Other parts, on the other hand, are exposed to light. Light causes a reaction in the wood as well as in the preservative, which first turns brown and then discolours and fades locally.

Tip: After being exposed to sunlight for a few weeks, the wood of the playground is given a uniform colouring.

Growth rings, knots and rays in timber


Knots may occur in the selected wood. A knot is a round, oval or irregular form of harder and dark wood at the place where a branch had grown. Knots, annual rings, cracks and small imperfections belong to the natural properties of wood and therefore give it its own specific character.

Rough spots can appear on the timber

Rough spots

Rough spots may occur on some wooden parts. Despite careful selection and production, some of these rough spots cannot be avoided. Depending on the type of wood, these rough spots occur mainly around the knots and at the ends. These aesthetic defects form an inseparable part of wood and they do not affect its strength and do not justify complaints.

Resin comes out the surface of the timber


All coniferous species contain resin. Due to the effect of sunlight it is possible that in the first year resin will come out of the fresh wood. The sticky leaked resin can crystallize to the wood surface taking on a yellowish color. These processes are natural and are considered normal.

Tip: Resin can easily be removed by scraping it off with a sturdy brush or putty knife. If necessary, you can also use a special alcohol-based resin removal agent.

Timber will gradually turn more gray


The colour of the wood changes gradually over time as a result of weathering and the effect of UV radiation. Impregnation is a protection against wood rot and not a decorative finish. This natural ageing has no effect on sustainability and does not lead to a loss of wood quality. If you want to preserve the original colour of the wood, you can treat it with a special wood oil or stain / water-based paint / varnish. This does not prevent a bit of resin from coming out, but it does protect against wood rot, aging, insects and some cracking.

Tip: The darker the colour chosen, the less visible the natural aging is.

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