How to “seal up” cracks in the wooden shed between wooden slats/floorboards

shed

I've got a new shed being put up this weekend, I want to try to seal it up to keep some of the bugs from taking over. After looking around Focus DIY (large DIY chain in the UK) I found some "wood sealer", which comes in a tube and slots into a gun for squeezing out.

Each tube costs £6 and I think I'd need about 20 or so in order to seal a 6' by 8' shed, is there a cheaper or more effective method?

Best Answer

Just lay some tongue-and-groove OSB plywood on top of the planks.

For a 6x8 shed, you should only need two 4x8 sheets - which should certainly cost a lot less than the £120 you would pay for sealer.

Or for that matter, just have them use T&G plywood for the flooring in the first place.