[Music]

okay

so this here

the reason we won't meet with people

that aren't contractors

i can talk and talk and talk and nothing

this is your industry guy i mean this is

the industry you're wondering please

okay i can teach you mine but i can't

teach you yours so if you don't know

what tile goes for a square foot

drywall goes for a square foot you know

trusses

i'm sorry i can't teach you construction

okay i can teach you the benefits and

the value of the machine

that will kick the crap out of any

competitor you have but i can't teach

you construction

so if you don't know it and you don't

come here with somebody that does

experience has shown us we shouldn't be

talking well that's rude

the level of what's going on here the

whole world

wants to know about concrete printing

a bunch of stuff yeah and

i'm the only one with a phone number

with the whole damn world

universities governments students

contractors hatring people i mean

we are the only company so i'm sorry if

it's offensive

i'm sorry if somebody needs to teach me

about business

and you've got the long-term learner

buster or whatever

okay granted okay i'm gonna play the

percentage i talked with anybody that

wanted to talk to me the whole first

year

and i know what percentage of those

people ended up in sales

and then i know what percentage actually

showed up responsibly

architect engineer okay

a chat so i apologize that

we really have to pick who it is that

we're

meeting with and that's the reason why

as you go through this

okay before we can do a side-by-side

comparison

we have to start off with traditional

construction

and that is what this is on our website

okay traditional building cost

calculator we'll go back

one actually okay so these are cost

calculators we have

uh the apple staff is first okay you

can't do apples apples

unless look show us show me yours i'll

show you mine

okay apples is going through taking a

blueprint

figuring out all the costs for the

things

that our printer can do we don't print

carpet yet we don't need porcelain

okay you said you said yes yes

okay so apple's apple's comparison

that's the first thing to ask me though

the second thing that has to be done is

we need to determine our mix

okay what is

the mix that we're going to be using uh

actually that's the third thing

that costs okay we break it down of

course

at some point we got to pick a uh

a format that everybody understands okay

and so we are breaking our costs down

into the cubic inch

uh and each one of these they make a lot

more sense if you watch our video what's

the name of the video

oh that first hour one yeah uh

understanding the differences

understanding the differences if you

haven't watched

understanding the differences you're not

gonna understand

this so um

then we go to our mix formula when we

break down

the mixes don't get excited i'm not

giving you our mixes okay it took us

three years to get here

and we're the only company that does get

the mixes

okay everybody else wants you to buy

their printer and buy their ink and then

ship it from germany

or netherlands or hillsides even you

know

new york so and then finally

once you've done this

you'll be able to do a project test

analysis

you won't be able to do this until

you've done this okay

um so we're gonna start from the

beginning we're not gonna get too old

today but it's important to understand

this

even if you're not in sales and you're

not selling

printers or selling homes or anything

else you still need to know this because

your

project site your print pilot

for your print team this here's where he

goes to determine how much material do i

need outside or

this facility you won't know uh

also this is where you determine how

many hours is it going to take

in order for us to print uh

this structure and

unless you have this the mixed formula

and the lab results

you can't do this either because you

won't know what nozzle speed you're

going to

print at when you're concrete printing

you cannot print

okay when you're concrete printing

you can't print each one of these is a

pass you can't print

faster than what you're carrying a lot

if you try

it's going to fall over okay we have a

lot of experience

with products falling over to get to

where we are today

so the key factor is now

speak how long does it take to parent

and get back to here

okay right there

and so that starts here with the mixed

formula

and the structural engineer uh

in determining how fully pass is going

to be

how wide each pass is going to be a

solid wall

hollow wall a wall with more

reinforcement all those things kind of

play here

so we'll put this here for a minute

come back to that later we'll go to

apple

i hope you like our head okay

because we designed a printer that would

use

89 of what you need that is literally

readily available in your local hardware

store home depot based hardware

we knew our contractors wouldn't want to

buy product and ship it halfway around

the world just

it was contradicting to one of the most

important parts of concrete printing and

that is speed

we do it a couple days it takes a month

to do it but if i got a

porsche and everything else so

uh and we played around with a lot of

these different mixes

uh as our base you have a basement and

then you start playing with additives

to get it to where it needs to be so go

down a little bit

so you take a floor plan

and you gotta go take off just like

anything else okay

how many linear feet of walls people say

well how much 16

a 1600 square foot house well hell i

don't know

are we talking about a house that looks

like this a house that's like this

okay uh

a 16 square 1600 square foot house can

have

you know 400 linear foot of walls it

could have

280 linear foot of walls and since we

print walls

it's kind of i don't care what the mass

is

okay so it's a different way to think

when you talk about concrete

we need to know all the walls all the

linear

walls okay closets door surrounds

bay windows everything to do a takeoff

all these different walls some people

are

uh

wanting to well put in just a little bit

okay right here actually you start off

with your

uh your footing uh the printer forms you

put it

okay it prints the footing itself

go back in put your v-bar in okay

it's gonna be the the squarest home

you've ever built it will actually be

square

uh drywall guys are looking for that uh

and so

it'll print the footings okay form saw

go just a little bit more so when you're

looking go back

up okay yeah

so for the sake of traditional

construction cost

uh just go listen pull square foot

linear foot

linear foot of walls okay can you see it

when i do this

the camera hit me oh yeah okay linear

photographs

uh

i'm sorry linear force footing

average height

how wide or 12 inches eight inches it's

got to be specified

and then it'll calculate the rest of

this stuff for you for the most part

for me cost uh remember

this is to establish what traditional

costs are going to be

so you have to be able you have to know

that okay my forming costs are costing

me

this much rebar is going to cost me this

much

uh come back back feeling how many total

yards of material am i gonna backfill

in backfilling the forms how much

labor how many hours uh did i have to

bring in a pump truck will be able to

get this from the boom

go down a little bit

and this is when i'm talking about this

kind of stuff you know what a pump truck

is and boom

and flat works and footings uh

it's i mean honestly it

so i don't want to is anybody but

ideally

uh the more you know about construction

in the first place there's a lot more

consensus is going to make

so then afterwards you got form

stripping you've got to have sending a

crew

they're they're breaking bars they are

splitting wood they're throwing away

they have waste and shrinkage that has

to go into effect

uh cost of damage lumber how many days

allotted this day the lawn is an

important part of what you're going to

do

how many days for this how many days for

this this this this

and guys when you're all done this is

still a perfect world this means that

all the millennials got up this morning

and actually wanted to come to work for

your driveway

or your framing guide or whatever else

i'm sorry

you're too easy to play with um

but anybody who's been a project manager

this is they realized okay okay if we

realize on the third

we're gonna have our framers in and on

the six

we're going to have uh

uh you know trust guys are gonna come in

and start running our trusses

on the 11th we're going to be running

drywall

sheeting the outside on this date

it's important okay you have a schedule

okay if the framers don't show up on the

third

what happened to your damn state when

you're calling the drywall guys

oh i i know for a week and a half later

you know the framer didn't come and

they're like

so

i'm on another project for three and a

half weeks oh my house and now you're

out either

pushing a drop back three and a half

weeks and trying to get everybody after

the drywall guys which is your tapers

and your painters and everybody else

to agree to a new schedule because these

guys didn't show up

or you're on the phone paying top dollar

trying to find anybody you can it's got

a hole that can come out here

and do the drywall gun job this is

construction and right now

this guy gave you a bid for this job two

and a half months ago more than likely

when you were bidding it for the client

and now he's got three other jobs that

have come in

on your date of they're offering to pay

in 20

more what happened to your job oh i'm

sorry you can't come

okay because this is construction okay

now i get people to give me some

pushback you're gonna you're gonna ruin

you know seven trees you know you're not

gonna have framers you're not gonna have

drywall you're not gonna have stucco

you're not gonna have putting people

you're not gonna have layout people

but yeah you do realize that people

can't afford homes and people are dying

every day because they don't have one

right

okay so i get it there's gonna be some

pushback

okay nothing that steve jobs and bill

gates didn't have to figure out

uh we don't have a hundred people

sitting in a room playing with ten keys

anymore okay

our cell phone method for us so uh we're

not gonna say no to the technology

because some new trades might have to

learn how to be a little more

competitive

uh it's not gonna happen but let's talk

something guys

awesome yeah my whole family didn't

[Music]

the bottom line is we're gonna take

a month and a half two months worth of

work and we're gonna do it two days for

it

okay and we're not coordinating with

seven subs

and getting materials on the job or flat

time errors or somebody can wake up or

whatever

but unless you're from construction and

understand construction

you just think i'm getting up here being

ignorant and sour creation and so forth

but if you had experience with

construction

he does did because he understands

construction

so uh and none of this is going to make

sense to the average person but if you

come from a background of construction

it's going to make a lot of sense

the reason these days allotment is going

to be important is because

you have days in there and by the time

you're done like okay a month and a half

with the word

two days wow

construction's got a whole hell of a lot

easier today uh the university of

arizona is just a lot of credit from us

their whole construction management

course which nobody wants nobody wants

to be constructed no more no when the

people are knocking down the door

can we sign up for construction

management no they're about ready to

cancel the whole program

and tell our printer and

now it's like oh my gosh i'm playing a

robot okay

this is the leading edge of construction

this is high tech

and they are excited about it and their

class is full

so go ahead go up a little bit more so

after the forms

then you strip you come back and

you do your slap okay then you do slap

finishing

go up pretty soon we will be doing the

platform

we will actually be printing that slab

sorry strip all the forms

okay if you were going to do a basement

which our printer does

one of the only ones it does

you take the legs off it you set it on

the ground

you grate it out and

bring the wall okay uh

roll your trusses or put your metal

plate down whatever you're gonna do for

that first floor

put the legs back on print above ground

floor

oh we want to do two stories okay run

our trusses

okay keep your eyes all the way across

cheat it

go up on top extend our legs

and print side story go ahead

so you get framing how many days get

materials to the job site

then we're going to run a rough

electrical

okay there's a hospital this stuff now

you'll still have electrical

but what you won't have now is

uh you're gonna have to come back get

some b-roll for this you're not gonna

have this

okay you're not you're not gonna have

obstruction with traditional

construction

when i'm running electrical i'm drilling

every

single stud this is nice guys you get

just stuck in their eyes

they're up above it's a nightmare okay

rough electric same thing for the

plumbing okay

uh that is non-existent when you're

dealing with a hollow wall like this

here

you just run your electrical just home

runs so your electrical field is going

to go down significantly

up a little more same thing with correct

plumbing okay

we're not drilling big two-inch holes

we're in an inch and a quarter

uh running your keep that abs through

all that kind of stuff

drywall we don't need drywall because

we're finishing the wall as we go

and at the end of the day it looks

as smooth as that so

a little more because we're not doing

drywall we're not sending in a crew for

five days to take

take first co go home come back the next

day

put on a second coat okay four inch

six inch 12 inch furred out

none of this done when we're at eight

foot

we are drywall and we are stuck up go

ahead

but when i am done in this smooth wall

i can go back and hit that with top coat

i can take a

broadcast in and just spray it go down

to a knockout okay

i can do a stamped uh brocade you can

have any effect that you have a drywall

with our wall as well a stucco

there is no laughing okay there is no

added material to come back

and try and blow on or use a hawk and

just slap it on slap it on slap

one and then trowel it out none of that

because

we are b-roll is going to be

showing us the finishing wall of the

special okay

you're going to literally be finishing

the wall as you're going with a sponge

trap go back in with the trap

any any type of texture you want

that's what you get how do you do that

james how do you how do you put the uh

what do you call it the knockout you put

you spray it all down you can just leave

it like that because of your smooth wall

okay

so you're saying you're saying you take

your wall and smooth first and then yeah

right here

here's the smooth wall right so you

shake it right there so you still got to

do it the same way

you do it the same way but you didn't

have to get it too smooth

okay okay okay we took mud we took

mortars not dry okay

no seams no nothing okay uh

and then from there you go back with

your hopper and blow it on

and that's the orange peel but knock

down these fields where you don't put

let it sit up move it and come down so

any

finish all the same available finishes

good question

uh insulation kind of insulation

okay uh you need cellular cellulose

fiberglass

it's all the same you trust this

yes is that insulation attachment that's

already offered

the insulation attachment is on cool

okay

but we've discovered we can't blow

insulation from 12 inches very easily

without going down like this

with a pipe which can do you can let it

dry just do it normal

uh when we tried to blow it which is the

cnc

head moving it was just it was just

getting caught

because of the inside okay

it was getting caught so we have to blow

all more printing which

causes problems too uh

we we definitely have more work to do to

get it to where it really depends what

kind of material you want

fibromyalgia is a lot different from

cellulose

but let's put it this way

our computer knows where the headset and

i can blow anything i want i can

backfill

extra mud i can put anything i want in

the wall so

up a little bit okay trusses

traditional trusted so you prank your

wall you let it dry

put your top plate on lots of different

ways to connect that we've shown you

that in some other videos

then you roll your trusses just like

that

use your hurricane straps tie everything

down um

what's the board called before baked

redwood that you stopped by a home depot

it's a plastic two by four two by sixes

we're right we're right around the

corner from being able to print

two-part epoxy trusting right outside

any shape you want

rounded shapes you just can't even

imagine you've never seen before

but we're just trying to keep it simple

stupid right now so

if we're just talking about these

trusses uh

have your truss package brought out put

your top plate on roll your trusses

uh cheat the roof okay you're ready

so essentially in real simple terms

we've addressed here what we do and what

we don't and this is what we do do so

we're talking about cost savings and

time savings

don't call me yell at me because you're

like well it doesn't include toilets

or carpet windows like

can't please anybody i'm sorry we'll

call you back and you can print toilets

then you can get really excited

say you know you know it's just the

coolest tool in the whole world

so trust me um can you print those on

pre-existing buildings that are already

there like walls are already there they

need a new roof trusses will probably be

printed

out flat and then rolled up okay

all right so if the walls are already

there like on a building

can cannot can this product you know

provide

that food we can't print trusses

in the air so the trust is going to be

flat printed this way picked up with the

crane stuck up on there

yeah i understand that but as long as

they can be lifted up

and put on there they're okay

yeah absolutely so

okay so let's go down to the moment now

we start getting in our totals okay

what was the material cost for footing

forming

labor cost how long did we allocate them

days for it

back filling footing stripping slat

forming

slab four okay he's here coming soon

sorry to disappoint

okay so i have a blueprint

you got to do your takeoff you come up

with all your totals here

because this these are the things that

concrete printing

does do right okay and you have to

understand that first but you're not

going to understand

we say 70 less and it takes two days to

do

all of this stuff versus

what you're used to a month and a half

okay

starts to become a little bit more

impressive so

from there let's uh get out of this one

and go to our next one

okay pause there for a second okay we're

going to go down to the back cost

so we'll show you how

it's unbelievably to me but it took us a

little bit time to try and figure some

of this stuff out too because

most materials coming in bags uh unless

you're ordering it

pre-mixed at a batch climax and so

let's go into this and most of what most

everybody

was just talking about most of that's

going to apply to us from a sales

standpoint

yes but but at the same time you guys

need to focus on the linear focus so you

know how much materials

okay let's just go a little bit more

okay real simple guys dude

how much it's going to cost our mix is

made up of

a bunch of different ingredients

okay that we've experimented with to

come up with

nozzle speed times and what we can do at

what point does it fall over

a point doesn't it but

if you to just over simplify this if you

just took a

type in or a type so

you put in your pounds here you got to

break it into

cost per cubic inch okay that's how our

calculators work

and to get it into cubic inch is width

length and height you add those strings

in

those three in divide the divisor out

and you'll come up with an approximate

cost per cubic inch

about a half a set of cubic inch okay

and then it'll give you some other

numbers down here if you're interested

in how many yards material is uh

or whatever else so

if we said okay we want to try and print

something

the reason everybody's printing small

stuff like this tall

is because

anyone

uh you know six access robotic anybody

can print this tall

out this tall okay that's the magic

number

uh i've said before you can print it

this way

okay and i will get it to stack to a

certain point

and that's why most of the whole

anything you see taller than that you

can look at the

color variations you'll see it's real

white here and it starts to get

darker and darker and darker it's

because they're printing sections

uh the magic number is about 12 18

inches

if you don't have your crap figured out

and that's all you can print a date and

that's why most of the stuff you're

seeing that's tall

that's how they did it they printed this

high and the next day this time and the

next update

the problem is you can't blend that you

can't have a nice speckled finish on the

outside that's consistent because you

got cold joints each day

and you're stuck up or your drywall on

the inside will never look pretty and

just

smooth and perfect okay

so

being able to print eight foot having a

beautiful punches

top to bottom bottom of the top is

essential

but in order to figure out what this

costs

i need to be able to break my material

into cosmic cubic edge okay

to work with our calculators so

that's it on this one okay let's go back

okay now we're going to go into our mix

formula uh

this will show you the different types

of ingredients that are most commonly

used

in developing different types of

concrete mortar mixes go ahead

and scroll down okay

you've got cordless demand you've got

lots of sand you have silica sand

uh in some parts of the world you have

unwashed sand just

you know sand right off the beach and

when you're printing with geopolymer

the coolest thing about that is it

neutralizes

the ph in your mix traditionally

salt is not friendly with

uh concrete especially if you're using

any type of rebar

okay now you've got a now it's really a

problem but

would you say initializing the ph uh

basalt mixes different types of assault

angles

[Music]

right wrong word uh geopolymer okay

geopolymer mixes

okay sly pores fluoride aluminum

graphite clay

gypsum sodium silicate uh potassium

silicate

and on and on so this is what we give

you this is what our customers do

what is the formula

and the math that allows us to be able

to print

without stuff falling over it really

sucks if you try and build your own

printer

or buy a printer and you're trying to

impress a customer and you've got a

contract

in your practice on it that is what you

get with mudbox is

we've done the follow-over stuff our

stuff go ahead did you personally

build this yeah yeah i've never seen a

tool this good for

for mixing no you won't this doesn't

exist anywhere

yeah i look forward forever i'm lazy

how

if it's outside their specs like within

specs they sell it

but then anyway yeah and that that

becomes part of the challenge of this

too is

you have sand okay well you have meat

sand you know wash sand you have

unwashed sand you have

high aggregate sand you have small

aggregate sand you have mesh

you know mill different mills all that

plays a part so uh yeah it may be a

really impressive list here but this

list

is a you know a tenth of

uh and that's why we spent a hell of a

lot more time with our chemical

engineers

playing this kind of crap then we did

print it we love to do this and print

something it's pretty cool these guys

nerd out on this kind of stuff and they

can get really really kissy about the

type of line we were using or whatever

else and so anyway

everything for us is figured in batches

when you're trying to figure costs and

stuff we work in batches

okay the ingredient specific emissions

are measured as batches the batch equals

one cubic foot we have to have

a starting point play and get on the

same ground with everything so we're

going to talk cubic inches

and batches what does one batch of

material

cost what's in it how do you mix it

okay right i was just gonna say did you

have you ever used like certain

recycled recyclable materials like uh

spent foundry sand

like things that pose an environmental

like the epa gives incentives

if you can find a productive use for it

like spent foundry sand

fly ash that's outside of we do testing

one day a week for different

attitude companies that are really keen

now on concrete printing

we're a little apprehensive in some ways

it's not our we're not the ones that are

out there saying hey let us help you

develop a you know concrete mix or

concrete printers that you guys can sell

from demo yeah

doesn't help me at all so but we do have

people that are like hey james

here's our stuff we're sending out some

free stuff test it try it see if you can

work it into what you're sharing with

your customers because we know you guys

are the only ones selling printers

and they're going to want to know what

was the specialty mix and what's in it

and where do i get it

and so yeah we're we're working on

lots of testing companies even

polystyrene balls

and concrete and just

we barely touch the surface of where the

city is going to go

so when it comes to strength and weight

and so forth so the first three

ingredients

is that what you just get in a normal

dry bag that you buy somewhere

yeah for the most part you're gonna get

maybe with a little bit of lime in it

okay so then how many more of those

other things yeah if i just want to go

cheap

go fast and go buy ready mix okay

okay they have their own little formulas

but anyway so what you have to do

uh if you're experimenting around with

your printer or wanting to

try different things is

um figure out what your cost or

corporate cement is

buy a batch okay so that's a

one cubic foot it'll break that down

into

cubic game spouse for you and move your

cubic inch cost over here total all your

cubic inch costs

so that you can use the next calculator

and that calculator

is gonna want to know that number what

is your cubic inch cost for material

to print this home okay so

uh i guess scroll all the way down for

me go on

go on yeah and you'll end up and then

they'll break it out and say

okay if you're able to actually order

this and just make my

[Music]

okay next one you put anti-freeze some

people put antifreeze in there

yeah in their mix yeah you're wet this

is

to your concrete

[Music]

yeah in common like in the winter

everybody laughs good stuff like that

yeah antifreeze in their mixes so okay

we're gonna go to project cost now

okay so again

uh let's just pick a house okay

uh let's do it uh 20

ass looks pretty square but let's say

it's 20 by 30.

and we got a room here and a hallway

this here

[Music]

front door

oh

okay so you got to measure every single

wall okay

this wall this wall

okay this okay and if i have a closet

here

okay same measure i measured straight

through

straight through this wall i measure

straight across

now because there's different ways of

doing this i can print and leave voids

for doors or i can just print straight

through if i print straight through it's

a

stronger structure less opportunity for

somebody to

knock the whole damn thing down stuff

like that and this stuff

like butter especially when it's green

on the sawzalls

you can actually almost go in with a

mason

trowel just go straight down so your

chalking line

and it's great ah the door looks a

little skinny can we get can we do 48

yeah

we want 148 sure sign here okay there

you go

just take it smaller anymore and it's

that's on the mix

uh well most of the time you can't even

start playing with it

i can make mixes that appear in pythons

uh standard type s type in mortar mix

you're looking at 20 to 30

minutes before you start playing them

right okay

so we're going to figure out the square

switches for gables okay which is going

to be this

measurement times that measurement

which means absolutely nothing to us

because like i said

this this could have been this could

have been a home

without these walls okay so

we just can't do square foot square foot

does not do anything for us we need to

know how many linear foot

of walls and how tall those walls are

going to be

so we're going to do square foot

entering our linear foot okay

linear uh inches

for one pass okay so this is just got me

right here

one pass right here we're looking at

about

five i can print an eight

i can create one okay

um this is the the smaller the passes

you guys

the smaller the passes the more

correct it is to finish product the

easier it is to finish it out trial now

longer it takes i've got to go all the

way around you know on something like

this it's going to be a house

you know you know i got 400 feet before

i get back to here

okay if i was going to try and do a

statue mona lisa

i want to go as close to form as

possible

so i have the least amount of troweling

and finish work

okay but you'll find half inch

to three quarters of an inch trowels out

very very easy okay

you're just talking these highs down

through the lows as you're going over it

so you have to answer that in

that's an important component for what

speed yeah how long is it going to take

just to print

okay you'll find printing in smaller

passes is one solution

to working with a mix that's curing

too small because i'm exposing more

mixed surface

to the elements as i'm printing when i

encapsulate a whole bunch in a big

one inch thick pass okay i got a lot of

blood in here that hasn't touched the

air

okay so this is one solution okay

but uh and then why okay

how tall are these walls

so you gotta answer that and scroll down

a little bit

all right okay are we gonna do a double

wall

okay these are walls with internal motor

support

so instead of a hollow wall it has this

ribbon

a motor support in the middle so it's a

little closer to what you would expect

from a cinder block

those would be on bearing walls

structural walls

retainer walls things of that nature

ideally you're better off to go with a

stronger

mix maybe with synthetic fiber

anything you can do to avoid this motor

support because once you put this motor

support in there

you can just drop electrical lines the

same way

so your electrical is going back up your

plumbing is going back up

uh i'm here to you don't have to most

people think they have to most building

departments seem to have to because

that's all they know okay but you don't

have to

and you can just as well print a hollow

wall

like this here which is structural as

hell isn't going to go anywhere

okay

um

okay so is it a double wall

uh that's under the wall that's the same

one

so if i'm training planner boxes or

maybe just doing the outline

of a barbecue stuff like that

uh do this this is a hollow off this is

pretty around the wall that's got

pre-formed so this here would be like

for a retainer or something

it's got the rebar already pre-done it's

in the footing

and i'm trying literally right around it

okay just right next to it

so you gotta answer that in total linear

inches for one pass

okay so i'll just take this measurement

okay

do all of those enter that number there

okay if we're doing uh

if this said it was a double wall it's

going to automatically double it for you

right here

okay so now it's going to give you uh

total linear inches

for all of your passes okay all these

pencils

divided out total cubic inches of

material

um we were missing one go up here

okay this has been replaced by the one

we used to have

you want to know how wide every pass

are we going to print with a one inch

nozzle okay

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i'm going to decline this how are we

going to drill the two instruments

okay and that will be that equipment

does that kind

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that determines how much material i know

how high you pass and how wide this is

going to be i know it's a double or a

single

now i can do all the rest of the glory

math and tell you this is how many cubic

inches

cubic feet cubic yards of material we're

going to need