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About our Wood – Plum “The Active Play Specialists”

About our Wood – Plum “The Active Play Specialists”

04 June 2019 Stacey BUYING GUIDES

Learn all about Plum’s wood and their commitment to the environment, the naturally occurring splits in our round poles and where to go for help.

Round Poles

Plum swing sets are made from round poles manufactured using whole tree trunks trimmed to size. Often naturally occurring splits will appear in the poles. In warm sunny weather the wood shrinks, in wet weather it expands. These physical changes cause the cracks. We design our round poles to be really thick so that even wood splits like the one shown in the picture below won’t affect the overall strength of the pole. 

Safety is as important to Plum as having fun and we’d like to reassure our customers that the majority of wood splits will never become deep or wide enough to affect the reliability and strength of our swing sets.

We use round poles because they have excellent natural properties. Part of what makes using organic materials like wood great is that each piece bears its own knots, cracks and variation in colour. They are very strong and pressure treated to ensure that our swing sets are amongst the safest and most durable around.

Remember to follow the maintenance guidelines included in the instructions for your Plum swing set and from time to time carefully sand smooth any splinters or surface scaling.

All manufacturers using round poles experience queries from customers about wood splits and Plum is no different. If you have concerns please email your purchase details and pictures of your round poles to

Dimensional Timber

Many Plum wooden play centres and swing sets are constructed using dimensional timber, sometimes referred to as square cut wood. Dimensional soft wood shrinks and expands the same as round pole. Splits are far less common in this type of wood and though they may still occur, rest assured that our dimensional play centres and swing sets are designed to ensure that these have no effect on the overall strength. 

Dimensional timber is versatile and is used in many Plum products, from sandpits right up to our giant Wildebeest Play Centre. Plum dimensional sets are manufactured using either Chinese Fir, a Cedar hardwood that can be identified by its red colour or Polish Pine, a lighter coloured softwood that is pressure treated to safeguard its longevity.

While dimensional timber generally does not require a large amount of maintenance, it is important to follow the maintenance guidelines included in the instructions for your Plum play centre or swing set and from time to time carefully sand smooth any splinters.

If you have any concerns about your Plum dimensional play centre or swing set please email your purchase details and pictures to


Certified FSC® pine from Poland is used in both Plum round pole and dimensional play centres and swing sets. To make sure it is as resilient as possible the wood is vacuum pressure treated. This safeguards it against wood-destroying insects and fungi that can cause soft-rot.

After the treatment process it is natural for a green mottling to become visible on the surface of the wood. This colouration is caused when the copper based treatment which serves as the preservative reacts with the resin already present in the timber.

Pressure treatment is a vitally important process in increasing the long term resilience of the wood. Innovation in our timber treated products ensures that the preservative is both weather-resistant and safe to humans and your garden plants alike.

Our Environment

Plum cares about the environment and takes an ethical and responsible approach to the products it creates.

Responsible production and harvesting of forested products is important to Plum. Therefore we ensure that all of our timber and timber based products are sourced from FSC certified or sustainably managed forests. You can be assured that you are purchasing your Plum product with a clear conscience

Plum has been a member of the Forest Stewardship Council® (FSC) since its inception and all of our solid timber remains FSC certified. Through our experience with FSC, Plum has ensured that we follow the same eco-friendly practices with our manufactured board materials so wherever you see the Plum ‘Eco’ logo on our products, you can be assured that they meet the standards outlined in our brand message.

Plum Products declares not to be directly or indirectly involved in the following activities:

  • Illegal logging or the trade in illegal wood or forest products
  • Violation of traditional and human rights in forestry operations
  • Destruction of high conservation values in forestry operations
  • Significant conversion of forests to plantations or non-forest use
  • Introduction of genetically modified organisms in forestry operations
  • Violation of any of the ILO Core Conventions, as defined in the ILO Declaration on Fundamental Principles and Rights at Work 1998

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