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I have a project where I need to build 50 planter boxes to go in a green roof we are building. They are of a simple design (see image below) to make it easy to bang out. The plan is to use 3/4", 5.5" width cedar. The appearance isn't important as they will be covered up by plants. We will fit landscape fabric in the bottom to prevent soil loss - the center drainage gap is 1/2" wide and the side ones are 1/4". I've got a jig worked up to make it easy to build the boxes.
I'm not 100% sure the best way to build the boxes. This is where I could use some advice. Are staples the right fastener - will work better than nails? I know that the acid in cedar will react with iron to make dark stains but they won't be visible so that's ok. I think galvanized is the way to go though maybe copper will last longer? Not 100% sure. Also, are 18 gauge staples reasonable? I think any thinner won't be strong enough. Thinking 1 1/2" length.
Also, looking at pneumatic staple guns. Any suggestions as to brands and or models? Probably don't need a beast to drive 1 1/2" staples into cedar.
I'm not 100% sure the best way to build the boxes. This is where I could use some advice. Are staples the right fastener - will work better than nails? I know that the acid in cedar will react with iron to make dark stains but they won't be visible so that's ok. I think galvanized is the way to go though maybe copper will last longer? Not 100% sure. Also, are 18 gauge staples reasonable? I think any thinner won't be strong enough. Thinking 1 1/2" length.
Also, looking at pneumatic staple guns. Any suggestions as to brands and or models? Probably don't need a beast to drive 1 1/2" staples into cedar.
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