Building my first (ported) box

 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 386
Registered: Oct-10
How does this design look?

I was thinking of building this box to sell. It fits squarely into my Aleros cabin-trunk opening, so I thought I'd use those dimensions, which is 24 x 16.5. It's for a 12" sub, and it's the optimal space/tune for daily and the mounting cut-out size for a SSD, Q, BL, BTL, Icon, Xcon etc.

outside 24 x 24 x 16.5
1" MDF / 2" baffle / counter-sunk 1"
12.5" diameter sub minimum 2" away from outer edges
45's in 4 corners, keeps port area width at 45 degrees
Port 2.75 x 14.5 x 40.875 (15.64-16.01" of port per cube with mentioned sub displacements)
2.67 cubes grosse (yes it is)
2.49-2.55 cubes NET with mentioned sub displacements
2.5 NET (XCON) = 30.5 Hz ranging to within .1 Hz with different subs.

What's it worth carpeted?

What will it cost in materials?

What screws do I use?

What glue do I use?

Is it Home Depot or Home Hardware that cuts wood?

Should I pre-drill (which?)?

Any tips?
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 606
Registered: Oct-10
Yes pilot drill the holes the same diameter as ur screw's shaft. don't sink skrews into the wood lengthwise too close to the corner, u will split it. Use drywall screws cuz they have coarse threads. Gorilla woodglue is for the tuffest jobs on the planet. Put a screw every 6-8 inches. Run a bead of quickdry silicone or caulk inside the box on seams. Get a sandind block with some 40 grit...u will need it. Measure thrice cut once.
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 387
Registered: Oct-10
I don't quite understand.

How could I possibly chaulk all of the inside seams when I need to close the box, and if I have to close the box than I can't get to the seams. It's not like I can stick my arm through the port with a mirror and chaulk at the same time lol.

What size screws? 1" MDF, 2" baffle.

I need a cut-sheet =(.
 

Silver Member
Username: Cwruck

Post Number: 577
Registered: Feb-10
I also pre drill for every screw I put in and I also love the gorilla glue wood glue and a good screw size I like is 1 5/8 but maybe use a little bigger if your using 1 in mdf.
I also glue every piece I put on

the best way to seal is to do everything before you put the top piece on. Then once you put the top piece on reach in through the sub cut out and finish the rest
 

Silver Member
Username: Cwruck

Post Number: 578
Registered: Feb-10
Also to help seal it to be air tight you can use fiberglass resin. Just mix some up and use like a 2 dollar 3 inch throw away paint brush and go crazy covering the whole inside. You have around 15 min before it hardens but should only take like 5 min to do. And do it on a warm day so it dries. Or else if you put it in your car not dried it will smell like it for a while.
 

Gold Member
Username: Kyle_lowe

Post Number: 1312
Registered: Apr-06
after you make the cutout for the sub to fit in you can go in and caulk the seams from there

you were just probably overlooking being able to do it that way
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 388
Registered: Oct-10
I wasn't thinking clearly a couple hours ago lol.

Does this look right? Outside dimentions 24 x 24 x 16.5.

top - 24 x 24 x 1
bottom - 24 x 24 x 1
front (baffle) - 20.25 x 14.5 x 1 (two)
back - 24 x 14.5 x 1
side - 21 x 14.5 x 1
outer port wall - 23 x 14.5 x 1
inner port wall (front to back) - 18.25 x 14.5 x 1
inner port wall (side to side) 15.5 x 14.5 x 1

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc6/222076_10150251238635786_60 0705785_9565681_6441445_n.jpg
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 389
Registered: Oct-10
I forgot about resin. Is there a specific kind I need? Is it costly? Does it come with instructions? Do you think Rona/Home Hardware/Home Depot will have it?

Should I try to put it all together at the same time except for the top? Like even resin/chaulk? Or should I wait until it's put together and get my arm inside the mounting hole?
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 607
Registered: Oct-10
It' caulk and u should prolly do as much as u can w top off cuz its kinda aggravating going through sub cutout. Also go to the hospital and snag come rubber gloves. Resin is a biaatch. I would not fool with resin tho. Also, IMO u should make the front one (or 2 cuz the port) flat piece to the vviewer....u kno, so u wont see a top smashed down on top of it. Make the front and the back 2 inches taller and the top and bottom 2 incches shallower. Ur sides will stay the same tho. But i like the sides that are squeezed in between the top, bot, front, back....u knawmean?? To give that clean look, but its a bit harder to put together.Also, when u list dimensions like that, could u please put w, h, or d?
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 390
Registered: Oct-10
If the top & bottom is shallower than the port wouldn't be the same size, think about it. I don't want to have to add small pieces lol.
 

Gold Member
Username: Dustin3

Box Designer & Builder...Dustin

Post Number: 5911
Registered: Oct-05
You don't really need to use chaulk. If you cuts are square, there should be glue that oozes out when you put each board on, you ca just use your finger (or put some more glue on your finger) and run it down the inside edge. so essentially your using the glue as a seal.
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 610
Registered: Oct-10
Huggi, YOU think about it
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 611
Registered: Oct-10
OK I thought about it

 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 612
Registered: Oct-10
It would work good if you built the box sub back, port side or up. or if it was sealed.

 

Gold Member
Username: Drant19

TX

Post Number: 2247
Registered: Aug-07
Ive always used Titebond wood glue, but hey we all got a preference. And Bassman3 is correct, if the cuts are accurate, just use additional glue on the inside for a seal.
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 613
Registered: Oct-10
X2 don't cut with a jigsaw! Skills saw if u use a fence. Otherwiise the sanding block will b ur best friend table saws are best
 

Silver Member
Username: Wackzirth88

K-town, Il U.S.

Post Number: 460
Registered: May-09
I personally use titebond 2 wood glue when building boxes. Predrill anywhere you plan to put a screw, you could even counter sink it a bit so your screws are flush or a little deeper so you can fill the holes in if you want. It makes the drilling easier/ faster if you have more than one drill. Run a bead of glue on both pieces of wood before screwing them together. It's also nice to have multiple and different size wood clamps. Fiberglass resin isn't a caulk and you don't have to steal from a hospital to get latex gloves. They are available for purchase at most stores, i.e. Walmart, walgreens, menards, home depot etc
 

Silver Member
Username: Makinblak

Monroe/Monticello, La/Ar

Post Number: 629
Registered: Oct-10
any progress?
 

Gold Member
Username: Somedonniedude

Illinois Braaap MX

Post Number: 3178
Registered: May-07
I use Titebond 2 as well. Use plenty of glue! iyou can't use too much, MDF will absorb a lot of it.
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 392
Registered: Oct-10
Thanks everyone, but this went down hill. My dads tools are up north, and when I asked if the lumber yard could cut the wood they didn't gauarantee accuracy, and said they probably couldn't cut it anyways, even though I made the cut sheet stupid simple. 1" MDF seems like it's almost double the price of .75", so I'm re-designing for .75", now I don't know what to do, maybe plan a box around a sheet of 4'x8'.
 

Gold Member
Username: Theweasel

2 12 FI SSD, Colorado U.S. of A

Post Number: 1284
Registered: Mar-06
Gonna be one heavy frigging single 12 box lol
 

Gold Member
Username: Dustin3

Box Designer & Builder...Dustin

Post Number: 5912
Registered: Oct-05
Lord ~

I can cut you up all the pieces and ship them to you for a low price. I can do cost of wood + 30 + shipping.
 

Silver Member
Username: Lord_huggington

Ontario Canada

Post Number: 394
Registered: Oct-10
That would be great Bassman thanks. I'll get going on another design, are you using 4x8 sheets? I might as well buy 1 sheet and cut that up just enough so that I can have 6 sides + double baffle + inner port wall or two.
 

Gold Member
Username: Dustin3

Box Designer & Builder...Dustin

Post Number: 5913
Registered: Oct-05
yeah, im using 4x8 sheets.
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