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  • 7/5/2025
Complete Van Floor Installation Masterclass Join our Toyota Hiace Super Long Wheelbase (SLWB) Hightop transformation as we tackle the foundation of any successful campervan build. This detailed tutorial reveals professional techniques for installing a level floor and highlights two crucial mistakes that could derail your entire conversion project.
Marine Plywood Professional Installation We walk you through the complete process of selecting, measuring, cutting, and installing marine plywood flooring. Watch as we navigate the complex contours of our Hiace, creating precise cuts around wheel arches and fitting every piece like a puzzle for a factory-quality finish.
Innovative Dual-Layer Insulation System See our creative solution for maximizing insulation efficiency by repurposing the van's original flooring material. This approach delivers superior thermal performance and enhanced soundproofing, transforming your van into a quieter, more comfortable living space for any climate.
Expert Fastening and Structural Integrity Learn why proper screw selection matters as we demonstrate installing our marine ply using Zenith 8G 25mm metal screws. We explain the engineering behind fastener choice and show you the techniques that ensure your floor remains rock-solid through thousands of miles of travel.
Advanced Problem-Solving for Van-Specific Challenges Watch us tackle the trickiest aspects of van flooring: managing the engine bay rise, maintaining spare tire access, and creating inspection hatches for the fuel filter. These solutions showcase the planning and foresight that separate amateur builds from professional conversions.
This comprehensive guide combines successful techniques with honest mistakes, giving you the complete picture for your own van conversion. Perfect for weekend warriors and full-time nomads alike - master these flooring fundamentals for a build that lasts.
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Timestamps
0:00 How to Get a Level Floor in a Campervan - 2 Mistakes to Avoid
0:17 Cutting the marine ply flooring
0:56 Flooring plan explained
1:16 Plan for marking out anchor points onto the marine ply
2:15 Progress update walkthrough
2:41 Planning for access to spare tyre
3:03 Wheel arch boxing plan
3:28 Fuel filter inspecton hatch
3:40 Planing for the engine bay rise
4:30 Zenith 8G 25mm metal screws to fix marine ply to Hiace floor
5:26 Measuring and mapping the floor
5:32 Additioanl floor support considerations for the rear of the van
6:18 Chrissy's idea to resuse the original flooring
7:32 Laying the marine ply floor
#CampervanConversion #ToyotaHiace #VanLife
Special thanks to UGOKAWA!
Previous Episodes
Episode 1: https://youtu.be/_bnGqKQl29o
Episode 2: https://youtu.be/JeEQsZfDxlU

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Transcript
00:00Off they go, bags in tow, Matt and Chrissy hit the road
00:05Maps unfold, stories told, adventure's never getting old
00:10Matt and Chrissy roam so free, through the city, past the sea
00:15Finding joy in every mile
00:30G'day, it's Matty from Couple of Sitters
00:59And we are nearly done with the floor
01:01We've got the pieces all cut to fit roughly where we need them to be
01:05It's been a bit of a jigsaw puzzle, but I think we've made it work
01:10So I'm going to give you a quick rundown on what the next step is
01:13So we want to make sure that we get this right
01:15In the previous video, we had marked out where the anchor points need to be
01:21So we ran a string line up and back and side to side
01:24And now what we're looking at is tracing that string line with those anchor points
01:30Over to the top of these pieces of marine plot that we've got
01:33So that we can make sure that we're actually screwing down into the risers
01:40Inside the body of the vehicle
01:42So I've done the back half here
01:45Front half's almost done
01:48It's going to be a two-person job on this one
01:50So I'll have to get Chrissy to come and give me a hand with it
01:52But the interesting thing is down the back
01:56We didn't take into account that our approach to using the offcuts
02:01Instead of cutting a completely new piece of timber
02:04Would require us to then remap the back area for the anchor points there
02:09So I'll spin the camera around
02:11And I'll give you a bit of a walkthrough
02:12On what we've done
02:14So towards the back here
02:20We've gone for two pieces
02:23And our original intention was to
02:25Where that hole is
02:27Have a second piece
02:29That would be a separate finger hole
02:32Lift it up, move it out
02:33To be able to get to what's hidden down inside there
02:36Because that
02:37Needs to be accessible
02:39That needs to be loosened off
02:41So we can get access to the spare
02:43So you probably don't want to
02:45Cover something important up like that
02:47And then find that you don't have access to your spare tyre
02:51When you're stuck out in the bush
02:52So we've got the two pieces at the back here
02:55Joining up into the third piece
02:58Which
02:59Even though there's a bit of space there
03:02That's okay
03:02Because we're going to be building a box
03:04To go over the top of the wheel arches
03:06Particularly on the driver's side
03:07That's where most of the solar is going to go
03:09And we believe the batteries will probably get mounted
03:13One of them at least
03:14Into that box
03:15If we can fit the two up there
03:17That'll be fantastic
03:18And then we've got our
03:20Other two main pieces of ply here
03:23And our inspection hatch
03:25Which
03:25What I'll need to do is
03:27Measure up and recut
03:29That piece of timber
03:30So I won't use that one as the final piece
03:32We'll get a clean piece
03:33That'll be in there
03:33And that way we've got no little
03:35Screw holes and notches
03:37And that'll all be tidy
03:39We've taken into account the rise
03:42In the middle of the vehicle here
03:44So the engine sits just underneath that
03:47By the time we've backfilled most of that
03:50We're going to use some extra bits of insulation
03:53And other bits and pieces
03:54To get that level
03:55We'll then be able to run
03:57A bit of two millimetre ply
04:00Over the top
04:00And then we'll sort of
04:02Scree it back onto the timber
04:04And then we can laminate directly
04:06Over the top of that
04:07But around the edges
04:09Once we've screwed this down
04:10We're just going to use a silicon sealant
04:13To fill in as much of that as possible
04:15And then we'll be putting the walls up
04:18We'll bead down along that
04:19And the walls will go up
04:22After the vinyl goes down
04:23So we'll make sure that all of the
04:25Electrics are done too
04:26So that's where we're at at the moment with this
04:29Based on the research that we've done
04:31We're going to be using metal screws
04:33Because they've got a decent amount of thread on them
04:35And it's close enough
04:36To be able to work with the thin panels that we have
04:38These are countersunk
04:41And they're also, I believe, capable
04:45Looking at the ends of them
04:46Of pretty much being self-tapping
04:48So we'll drill our guide holes
04:50Going through the timber
04:51To take the pressure off the screws
04:53And then they can just finish up
04:55And cut into the panel
04:56And we'll be right to go
04:58So they're not anything special really
05:01It's just a Zenith metal screw
05:05That's a countersunk head
05:07We didn't want a head that wasn't countersunk
05:09Because we're going to be laminating over the top of this
05:11And we want a nice smooth finish
05:12So we'll draw the pilot holes
05:15Countersink those
05:16And then we'll drop the screws in onto that too
05:18But first up
05:20We're going to measure out and map
05:21The rest of the areas that we're going to be drilling into
05:23So we'll see you in a minute
05:25Okay, so we've marked out all of the dots on the van
05:36There are a couple of areas where we're going to need to
05:39Anchor some supports underneath some of these panels
05:41Because they sit close to the back
05:43And there's just that little bit of a lip
05:45Where it doesn't have quite enough support for my liking
05:48So even though we've got anchor points
05:50Towards the front of the van on these panels
05:52They're probably a little bit disproportionate
05:56Because of the length or the size of the panel
05:57To how much support there is lacking underneath
06:02So we've got some 12mm marine ply that we're going to use underneath
06:06And we'll just screw that to the timber that's on top
06:09What we are also going to do
06:13Just having a chat with Chris
06:14And she reckons it's a good idea for us to be able to use
06:17The existing floor surface it was on here before
06:21As another layer underneath the marine ply
06:25Now that'll go
06:27We'll have to trim some of the fat off the edges
06:30Because there's a couple of areas where it sort of
06:32Sits up against the wheel arches and stuff like that
06:34Which we don't really want
06:36So I'm going to pull all of the timber out
06:38I'm going to grab that flooring
06:40Put it back in here
06:41And just come along with a Stanley knife
06:43And cut the edges of the flooring back
06:45Because otherwise it's just going to get thrown out anyway
06:47And then we'll put that down
06:49So that we can then have the marine ply
06:51Sit on top of that original vinyl and insulated flooring
06:57It's just like a little insule fluff
06:58Sort of mix underneath it
07:00So that'll hopefully improve the sound deadening
07:06And also improve the quality of the warmth
07:10Quality of the warmth
07:11Warmth has quality apparently
07:13Our experience
07:16It'll improve the quality of our experience we hope
07:18So if it doesn't
07:20Eh, no big loss
07:21It was going to get thrown out anyway
07:23We probably won't know whether it does or doesn't
07:27Because we're just going to put it down and give it a crack
07:30See how it goes
07:31So that's the next step
07:36So that's the next step
08:06So that's the next step
08:36balloons
08:38.
08:39.
08:48.
08:50.
08:50.
08:52.
08:54.
08:55.

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