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Frequently Asked Questions

CLS is an abbreviation of ‘Canadian Lumber Size.’ The name originates from the Canadian market. CLS is typically used for internal stud work. The usual sizes of CLS are 38mmx63mm or 38mmx89mm. Lengths include 2.4m, 3.0m, and 4.8m. View our CLS range here
C24 treated timber is kiln dried, planed, and chemically treated. All edges are eased. C24 is a grading level that architects, engineers, and builders often require. The C24 grade confirms the timber is of a certain strength. C24 timber is ideal for structural use as well as home DIY. All our treated timber is impregnated with Lonza Tanalith solution. Tanalith gives the timber the ultimate long-term protection against wood decay and insect attack, wherever the timber is to be used. Treated timber is ideal for outside use. View our C24 Treated Timber range here
C24 untreated timber is kiln dried and planed. All edges are eased. C24 is a grading level that architects, engineers, and builders often require. The C24 grade confirms the timber is of a certain strength. C24 timber is ideal for structural use as well as home DIY. View our C24 Untreated Timber range here
Constructional timber is checked to make sure it is strong enough to be used in a structure, such as a house. Engineers and Architects require that timbers are of a certain strength to make sure structures will be stable. These grades are classified. For example, C24 timber is a higher (better quality) grade than C16 timber.
PAR timber is a timber that has been planed all around. It is planed on all sides offering a smooth finish which makes it exceptionally versatile allowing it to be used for multiple uses, such as internal joinery and furniture construction. View our PAR Timber range here
Feather edge is a piece of timber used for fencing. One edge is typically thinner than the other edge. Feather edge is a very popular fencing timber in the UK. View our Feather Edge range here
Wall coping is the coping of the wall on the top. It gives the wall a smooth and sophisticated style. View our Wall Coping range here
Gravel boards are typically 100mm or 150mm thick. They are used to protect the bottom of the fence from the soil, debris, and insect damage. Gravel boards are available in concrete or timber. Check out our range of Gravel Boards here. View our Gravel Boards range here
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