Cumaru Decking Guide: Installation Tips, Weathering Insights, Fasteners, & Best Practices

all right we’re here in the IPE shed so

that’s of course what’s in front of me

is one by six decking of eBay same

characteristics for the most part as the

other species which is naturally

resistant to insect attack naturally

resistant to fire naturally resistant to

rot and decay of course with eBay it is

the hardest going back to that Janka

scale that’s at the very bottom of the

genka scale but clustered in very

closely with three other species cumaru

masts are nuba and Purpleheart which

I’ll get to so some things to note

specifically about eBay the boards do

vary quite a bit in terms of color so

they vary board to board significantly

now it’s not that easy to tell on the

boards here in front of me because

there’s not oil on them I’ll put up an

image here on my right that will show

you a better idea of how much they can

vary but you’ll get everything from

light olive to almost a chocolate

colored board this sample is kind of a

good example of what it looks like with

oil and before oiled soap without oil of

course it’s matching the boards that are

in front of me pretty well and with oil

it’s significantly darker now it’s not

that the oil has a whole lot of color to

it it’s really not that tinted but it is

if you were to spit on your thumb and

rub it it would saturate the wood and

that’s what the the UV oil does its main

purpose of course is to protect it from

the wood from graying out due to

sunlight exposure but the other

characteristic that the wood that the

oil provides is that it saturates the

wood which again in the image on the

right you can tell so things to note

about eBay very very very hard a lot of

people compare it to concrete in its

hardness and like concrete

it does sink it doesn’t float on water

another thing to note

you will find that eBay tends to have

green patterns and maybe some black dark

brown striping out of the six boards

here only really one has it a lot this

one has a little bit and that’s about

how often you’ll see it one out of every

six boards will have significant black

striping and the black striping it adds

character and the reason I bring it up

is because you know we want you to know

exactly what you’re getting into with

eBay

it’s a beautiful species but it and it

does come with these certain

characteristics and that is that the

color varies from board to board you

will see some black striping certainly

it’s mainly brown hues other species

we’ll talk about our more blonde more

red certainly brown hues in eBay I think

that’s really about it let’s go over to

the cumaru shed alright so now we’re in

the Kim Bruce yet just like with the

eBay before this is our kuru 1×6 decking

profile

so again I’m going to throw up the genk

on the right here as you can see kumru

is very very close to ebay in fact in a

lot of commercial occupations it’s used

interchangeably with cumaru the Atlantic

City Boardwalk is a really great example

of where they couldn’t get enough eBay

at the time this was back in the mid 90s

so they used eBay and Coomera so all the

same benefits as far as insect fire rot

and decay all resistant to those the

differences really come with the

aesthetic so as you can see with kuru

they tend to have a little bit more of a

red hue to them especially when they’re

first cut or before they’ve been in the

sunlight so if you look closely to the

board’s in front of these six boards I

have turned over three of these so these

three here I have turned over to see the

fresh side so as you can see these three

are significantly more what I’ll say

pink or have more salmon pink hues to

them than these three these three have

had a little bit of sunlight exposure

they’ve had more oxidation exposure so

these three are brown this is more of

the color that you’re going to see with

cumaru so with EPA’s darker Browns two

lighter Browns with EPA it’s a little

bit our cumaru rather it’s a little bit

more consistent a little bit more of the

red hues this is a sample of kuru again

here is what matches the boards here

because they don’t have oil and here’s

one with the oil so as you can see

significantly browner than this side

again the oil is not adding the brown

it’s just that this sample has been

exposed to more oxygen

the undersides of these warts

particularly these through here so it’s

more saturated another thing that you’ll

notice with kumru I’ll throw a picture

up here on my right is that you’re not

going to see those black those dark

brown and black stripes that I mentioned

in the previous video but what you will

see are small what I like to call

hairline striations so striations is

just a fancy word for a line and if you

look really closely at these grades you

can see they have these tiny little

lines which in my opinion makes Cuba

really really pretty species and it

certainly differentiates it from equator

so just to give you an example here’s

one more there

[Applause]

you can see it’s even got some blonde

this one of course did not have much

sunlight or oxidation exposure and then

here’s one that has had some of that

exposure and it’s significantly more

ground