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Fill gaps between deck boards

Kelly Tooley
last month

We've been in our house over a year now and are finally starting to upgrade the backyard. The deck is old but seems to be in decent shape, at least to last us a few more years. Replacing the deck now isn't in the budget for us so we need to make it work. The problem is that the gaps between each board are really large.. in some places over 1/2". My son already dropped an iPhone between the boards and I really don't want to go through that debacle again! Any tips on what we can do to fill the gaps? I thought about using rope or even wood dowels but we need like 850ft of something and that gets expensive fast! We're new to homeownership so still learning about materials and DIY jobs. I appreciate any advice, thanks!

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