Decking Boards at 45deg

[me3_neuralfibre]

I am planning on laying my 90x19 kwila decking boards at 45deg over my 50mm joists. The spacing is 450mm, so effective board span will be increased because of the angle. I probably should have reduced the joist spacing, but have spent enough on timber already.

Does anyong know if there are there any inherent problems with laying boards at an angle?

I am doing as the deck wraps around the corner of the house, and it will allow a consistent pattern. Going one way only would gove one side with "short" runs. I can't go two differnet directions and join on the corner due to the post / beam / joist layout.

Thanx
Paul

[mako]

Should be fine. I think from memory 90mm hardwood decking can officially span max 500mm anyway.

[mako]

Just done the maths on it and span would be about 630mm. Not ideal but still reckon it will be fine. May be a bit springy underfoot.

[silentC]

I've done it with T/P. Worked fine. Just make sure all your boards span at least 3 joists - good practice anyway.