07/25/2024
OH NO!!! This is why I ALWAYS discourage new customers against wood windowboxes. This will be the fate of an all wood box eventually. Can you line them, seal the inside, use cedar, treat the wood, add an insert? Yes, but if a customer is watering their windowboxes like they should, they will always be wet to some degree and water and wood just don’t mix!
I can get on a real soapbox with this topic and have plenty of years of watching hundreds of windowboxes to back me up. Wood will rot eventually.
A Wood/composite material (like Trex) is THE BEST bet for longevity. We have some boxes built 10 plus years ago out of this material and they look as good as the day they were installed. If you have a good carpenter in your area this is the type of material you should only use. You can paint it to match your house or trim.
Our absolute go to online company for pre built windowboxes is They have a lifetime guaranteed line of a PVC (paintable) material windowboxes that are super sturdy and look completely custom.
The correct materials are key but please dont skip the importance of hanging them properly as well. This is a job for a professional. They need to be mounted into whatever surface you are working with well enough you can sit on the box after installation. Windowboxes can weigh hundreds of pounds by the end of a summer and they need to be installed to handle that weight.
Hopefully those tips help someone avoid this outcome 🙃😉
