Best way of securing an MDF base board?

[Shilakadaddy 0]

At the moment I'm trying to work out what would be the best way to secure an MDF base board to the boot floor for a sub box and amp to be attached to...?

 

Minimum rattling is the main aim here, so I'm looking for something nice and sturdy. My idea was to weld four bolts to the floor, then have a thick rubber washer on each which the MDF would sit on top of, before being tightly held down with large nuts :) Problem with that idea however is that the fuel tank is right underneith the floor meaning welding would be dangerous without removing it... which I don't really want to do. This same problem means that drilling is out the question.

 

So what have other people done that works? or will I just need to remove the fuel tank in order to get this job done properly?

 

Cheers, Chris

[coolrado 0]

i have used multiple legs with velcro on the end to secure the false floor to the boot floor and its sturdy as hell and does not vibrate at all

but if you want a more permanent solution try using some tiger seal polyurethane (windscreen adhesive) that will stick to anything and also deaden any vibration

[bcstudent 0]

My boot build has a false floor made from 8mm MDF. There are two batons, shaped and siliconed to the boot floor, that run from the rear panel to the rear seats. The false floor is screwed to those.

 

The sub box is the width of the boot so the floor needs little strength.

 

*EDIT*

 

If you're making a false floor that covers the access panel to the fuel pump in the tank I urge you to design the build carefully. It will be a good idea to leave a cut out in the floor that allows access to the panel/pump and put the sub box over the hole. In case of fuel pump failure you only have to remove the sub box and no the whole build. I wish I'd though about that when I put mine in, especially now as the pump is getting mighty loud :roll:

 

Incidentally my build has been squeak and rattle free so far. I can't see the need to weld anything in for the sake of a stereo.

[Furkz 0]

i shaped mine to the design of the floor accurately and covered with acoustic carpet and made sure it sits FLAT. once the sub and amp are on it,,it will hold it down without any rattle

[24V Renshaw 0]

Gripfill two wooden batons to the boot floor and bolt everything to it. they will be absolutely solid, but you will never get them off in one piece again. :)

 

Jay

[Furkz 0]

make sure it doesnt raise everything too high with the batons though coz my sub box hit the parcel shelf when i was thinking of designs

[Shilakadaddy 0]

the baton idea seems popular, I'll give that a go :) Thanks for the advice guys, I've been meaning to do this for a while, but didn't think any adhesives would actually stay stuck with all the vibration... but evidently they do! :)

 

Cheers, Chris

[stevemac 0]

I have a baton glued to the rear panel with "No-Nails" - works a treat.. :wink:

[24V Renshaw 0]

Go to a local builders merchant and get some GripFill. Its incredible how well it sticks to bodywork!

 

Jay

[Henny 0]

yup, got 4 aluminium angle pieces stuck to the boot floor with some kind of sealant (probably sikaflex or gripfill) from an old boot build in my Grey G60... there's no way they're coming out... and I tried on one of 'em! :|

[bristolbaron 10]

looks like i'm going for the simplist route, same as i did in my polo. I have a space saver wheel, so it sits out just under 1" from the boot floor level. I have bought some 1" thick dense foam, cut it to fit at the sides and a big hole for the wheel and will lay a fitted piece of covered MDF to go over the top. By the time the foams added, the whole thing will be raised to the same level as the two floor side bits - so nice and flush!

Wiring etc lays flat into the foam as well, and its easy to remove if i ever need to get to the wheel!

Fitting in the next couple of weeks so will post photos..