Impregnating fence wood is a frequently asked question with new fences. In most cases you do not need to apply additional impregnation - factory-impregnated fence wood has already been pressure treated. In this guide you can read when impregnation is necessary and which products to use.
Factory-impregnated vs. impregnate yourself
Impregnated fence wood from our webshop has been treated under vacuum pressure. The preservatives penetrate deep into the wood cells - much more effective than surface treatment at home. For a standard fence this is the best and most economical choice.
Impregnating yourself is useful for:
- Untreated timber that you want to protect yourself
- Cutting surfaces and end edges after sawing to size
- Extra protection in places with intensive ground contact
Step-by-step plan: impregnating fence wood
- Allow new wood to dry when wet (at least several weeks outside)
- Clean the surface of dust, moss and old layers of paint
- Treat all saw cuts and drill holes directly with wood preserver
- Apply impregnating agent with a brush or garden sprayer - thinly and evenly
- Repeat after 24 hours if necessary (follow package)
Which impregnating agent do you choose?
Use one transparent wood preserver or primer for outdoor use. View our range paint & stain for impregnating agents, primers and wood oil. For an opaque finish, choose garden paint after a base coat.
Maintain impregnated wood
Impregnated fence wood does not need to be impregnated annually. However, periodic cleaning and - if you want to mask the green color - an opaque stain will help. Read more in our category impregnated wood.
Frequently asked questions
Is impregnated fence wood toxic?
Modern EU impregnated wood meets strict standards and is safe for normal outdoor use. Wear a dust mask when sawing and do not compost sawdust.
How often should I re-impregnate?
Factory-impregnated wood: not necessary. Self-treated bare wood: every 2–3 year again, depending on exposure.
Impregnate Douglas?
Douglas fir does not need to be impregnated - oil or stain is sufficient if you want to retain the color. See Douglas maintained.