How do get box dimensions?

[Astyl 10+ year member]

Real quick question, how do you find out how much room you have in your trunk for a box?

I thought the equation was.. HxWxD = XX volume

Because thats what i did and i came out to 7 or something cft of room, and then i gave the dimensions to another guy and he said i only had like 4

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[PhatTonyDeMarco 5,000+ posts]

Multiply all the dimensions together, then divide by 1728 (which is a cubic foot.)

You need to factor in wood thickness, so subtract 1.5 from each dimension before multiplying them together (for 3/4" wood)

 

[Astyl 10+ year member]

My Dimensions are

H-16

W-28

L-30

After Wood Displacement i came up with .040

so 4 cubes net?

 

[supraman1379 10+ year member]

I might have figured it up wrong. But I came up with 6.xx

 

[Astyl 10+ year member]

//content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

which one

 

[supraman1379 10+ year member]

I though I did it wrong. I cam up with 4.1137876 this time.

 

[Anonymous User 10+ year member]

I might have figured it up wrong. But I came up with 6.xx

actually that number is right, i got 6.3 cft.

http://www.rockfordfosgate.com/rftech/boxcalculator.asp

^^^thats really helpful at calculating your box

 

[Astyl 10+ year member]

wow 6.3 cubes of internal room, sounds good to me.. that really helps out my plans //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[supraman1379 10+ year member]

LOL We are probably confusing the shit out of him

 

[squeak12 10+ year member]

6.3 cu ft. Net. Thats if you build a sealed enclosure to those max dimensions. If its ported you will need to subtract port displacement. Also will a box that size fit into your truck through the opening?

 

[U n r e a L 10+ year member]

i think jl audio or rockford fosgate has a box calculator on there website......check both of them out...thats how i got my cubic feet....you just type in your dimensions and it gives u the c^ft

 

[Astyl 10+ year member]

6.3 cu ft. Net. Thats if you build a sealed enclosure to those max dimensions. If its ported you will need to subtract port displacement. Also will a box that size fit into your truck through the opening?

I took that into account and yes it will fit, if it dosent i have fold down rear seats and ill put it in through the cabin, and im going to use aeroports, so subtracting a ton for port displacement isent really a issue for me

 

[squeak12 10+ year member]

Also I would recommend some form of bracing for the large panels and for the ports to rest on.

 

[Astyl 10+ year member]

I wanted to get a 15" L7, now that i found out i have 6.3 cubes available.. should i throw the single 15" 06 L7 in a 6 cube box @ 35 hz off a eD Nine.1 for some decent bass?

I want to be 140+ off of music

 

[nauc 10+ year member]

using 3/4" wood, internal is 6.33 cubes