ᐅ Decking made of Bankirai wood: what spacing should be left between the boards?

Created on: 20 Mar 2021 12:55
H
HilfeHilfe
Hello,

we have classic ribbed Bangkirai wood on the exterior and want to replace it with the smooth version. At the hardware store, the discussion came up about the spacing between the individual boards. We would like to set them closer together. The specialist said that in the past, 3 cm (1.2 inches) spacing was used, but now 7 cm (2.8 inches) is common. These spacers are only available in 7 cm (2.8 inches) anymore.

What spacing do you use? We had the wider spacing before, and it really bothered us.
I
ivenh0
21 Mar 2021 06:40
Almost 10 years ago, we built a terrace ourselves using Bangkirai wood. At that time, we used a meter stick as a spacer, so the gap was more like 2-3mm (0.08-0.12 inches) rather than 7mm (0.28 inches).
By the way, the terrace still looks like new. There is no rot, and water or dirt haven’t caused any problems. Painting it once or twice a year is probably more important than the width of the gaps.
AMNE3IA21 Mar 2021 07:05
ivenh0 schrieb:

We built a deck from Bangkirai wood ourselves almost 10 years ago. Our spacer back then was a meter stick. So more like 2-3mm (0.08-0.12 inches) and not 7mm (0.28 inches).
By the way, the deck still looks like new. Nothing is rotting, and there are no issues with water or dirt. Painting it once or twice a year is probably more important than the gap width.

The spacing between the boards is just one factor among many.
Regular maintenance is, of course, also important.
Still, the gap should be at least 7mm (0.28 inches) or 6% of the board width.
Otherwise, Wood Research Austria, a research institute specializing for years in wood, including wooden decks and their substructures, would be mistaken.
N
nordanney
21 Mar 2021 09:55
AMNE3IA schrieb:

Still, the gap should be at least 7mm (0.28 inches) or 6% of the plank width.
That is so far from practical! Not even a professional does that. Nor a 20mm (0.8 inches) edge gap.