How to Build a Planter Box

Gardening How To

This is a guide to building a planter box/flower box for your deck railings. For me, fairly large, 7’ long boxes for flowers to decorate my deck glulams. I couldn’t find any reliable information on the internet for this, so I’ve decided to make a page teaching others how to build that big mounted planter box. The first time I built these planter boxes was 20 years ago, and I can give you tips on what lasts and what doesn’t.

Here is a list of tools you will likely need (there may be more):

• Workbench for sawing
• Electric saw
• Screw gun (we’re going to be predrilling, too)
• Measuring tape
• Carpenters pencil and chalk tape
• Wood glue
• Stain (optional)
• Mounting brackets
• Another person to help

First off, redwood is preferable – I’ve found it lasts a lot longer, but Cedar is cheaper and is a good alternative.

To be continued…