Wide joists (220mm) instead of wide decking boards (145mm) for terrace and pool deck?
Are there any disadvantages, besides the price, with using wide joists instead of decking boards for the terrace and pool deck? I'm thinking 220x45, the widest decking board seems to be 145x34. Does 220x45 warp/split more? It will be placed partly by a pool, partly on a sun-drenched terrace. The idea is also to use Sioo treatment to achieve the light grey surface. I want to avoid too much warping or splitting.
It's about pressure-treated timber in both cases.
It's about pressure-treated timber in both cases.
The surface of decking is probably more finely planed than the side of a beam.
The beam is likely to crack more than a decking board.
To prevent the beams from twisting, strong nails/screws and a heavy/sturdy frame that doesn't lift are required.
The beam is likely to crack more than a decking board.
To prevent the beams from twisting, strong nails/screws and a heavy/sturdy frame that doesn't lift are required.
It is not pressure impregnated, so it has poorer resistance to rot, we use it as plank walls. We split glue-laminated beams.
