Solid pinewood climbing frames
Jungle Gym Climbing frames are made of solid European pinewood; the wood from pine trees. Pinewood is beautiful, strong, environmentally friendly, CO2 neutral, recyclable and infinitely renewable as long as it comes from sustainably managed forests. Its good technical properties, natural appearance and durability makes pinewood a first class material for climbing frames, playhouses and swings.
Wood is alive
Wood is a product of nature, every piece is different containing unique characteristics. Variations in color, grain, structure and knots are part of the charm and beauty of real wood. They give your climbing frame character, no two pieces are alike. Over the years, new or other irregularities may appear and are completely natural..
All our solid European pinewood is carefully selected and inspected. The following irregularities are deliberately allowed and do not affect the quality or structural integrity of the climbing frames.
Wood is a natural product with its own characteristics. Every tree has a different shape and structure. The preservative can also cause some color difference. Any color difference will disappear within a few months.
Expansion / contraction
Changes in humidity causes slight expansion and contraction of the wood. When the air is humid the wood expands, when the air is dry it contracts. This is a natural property of wood and does does not affect the quality or structural integrity of the climbing frame. This is also the reason why we don’t pre-drill the holes for you, depending on the weather it would not fit perfectly during assembly.
- Length maximum allowed difference 1.5%
- Width maximum allowed difference 6%
- Thickness maximum allowed difference 6%
TIP: Unpack the wood right away and allow the wood to acclimatize for 2 days before assembly.
Slight surface cracks / checks
The expansion and contraction (see previous) may lead to some slight surface cracks or checks for example when the outer part of the wood contracts around the heart. This occurs usually at only one or two sides, is another natural property of wood and very rarely affects the structural integrity. However if this is the case, the wooden part must be replaced.
As long as the surface cracks are smaller than ¼ of the length and ¼ of the width of the wood part and they don’t affect the structural integrity, they are acceptable.
Growth rings, knots, grains and rays
Growth rings, knots, grains and rays are an integral part of the charm and beauty of real wood and give your climbing frame character. They do not affect the quality or structural integrity of the climbing frame.
TIP:If you dislike particular growth rings, knots, grains or rays, mount these wood parts out of sight.
This is also a natural characteristic of wood. Only the first year a few drops of sticky resin can come out to the surface of the wood. This is completely harmless to your or your child's health.
TIP: It can be easily removed with a firm brush or a putty knife. If necessary you can also use some turpentine.
The preservative in pressure treatment mainly consists of salts. This protects the wood against wood rot, insects, mildew and fungi. Around the knots and/or resin, these salts can sometimes form crystals at the surface of the wood, visible as white-green spots. These spots are completely harmless to your or your child's health and do not affect the quality or structural integrity of the climbing frame.
TIP: Rain and sunshine will gradually cause the spots to get absorbed by the wood and disappear. You can also remove them with a firm brush or the included sand pad.
In some cases, the humidity and temperature fluctuations during the pressure treatment causes some spots of superficial mold or mildew. These are completely harmless to your or your child's health and do not affect the quality or structural integrity of the climbing frame.
TIP: Any superficial mold or mildew spots can easily be removed away with a cloth.
Small holes are created by insects even before the wood is impregnated. Processing and pressure treatment eliminates any insects so they can do no more harm. Small holes like these do not affect the quality or structural integrity of the climbing frame.
Staining / painting / aging
All wood in Jungle Gym climbing frames is weatherproof therefore no need to paint or stain. Exposed to sunlight over the years the color of wood will gradually turn more grey, this does not affect the quality or structural integrity of the climbing frame. If you want to maintain the original color or prefer a completely different color, we recommend a water-based outdoor stain / paint. The wooden parts are paintable in every color.
TIP: With recently impregnated wood, we recommend to allow the wind to dry the wood for a few months so it is less oily. We also recommend to stain / paint between 14 and 21 degrees dry weather.