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Plywood Build

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9 replies to this topic

#1 Rodders02

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  • Joined: 08-October 15
  • Location: Freo (but I hate the dockers)

Posted 15 December 2016 - 11:40 AM

Hey all, planning on building an 8x4/8x3 plywood build for some pbass or Barra. I've looked at the sheets at Bunnings and they have marine plywood (stronger and more expensive) or just normal plywood. Normal structural plywood sheets that are 21mm thick cost $78 a sheet (2.4x1.2) but marine plywood 12mm thick costs $93 a sheet (2.4 x 1.2). I'm thinking of going with marine plywood and lining it with builders plastic and ditch the epoxy if it's not necessary otherwise will do epoxy and builders plastic. Edges will be sealed with polyurethane which I think is the best for plywood. My only concern with the marine ply is that it's only 12mm thick and it's going to hold about 400 gallons of water. I've never built anything like this so I honestly have no idea what I'm doing and just wanted to get some advice from you guys!

Cheers, Tom

(might be in the wrong section)

#2 Hood

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  • Joined: 06-February 08
  • Location: Clarkson, WA

Posted 15 December 2016 - 07:18 PM

I see no replies as of yet, so I'll throw my 2 cents in as a fabricator and engineer. Stone fabricator, but still I work with many departments within the company so can throw in a few comments as far as other mediums go too. Marine grade ply is probably going to be your best bet as far as durability goes. Instead of builders plastic I'd consider rubber pond liner. Also available from Bunnings, but much more durable too. Epoxy can go quite hard, therefore brittle, so maybe a more flexible adhesive might be better? Are you planning a glass/Perspex insert in this build or essentially just trying to make an indoor pond? Sent from my iPhone using Tapatalk

Edited by Hood, 15 December 2016 - 07:18 PM.

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#3 Rodders02

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  • Joined: 08-October 15
  • Location: Freo (but I hate the dockers)

Posted 15 December 2016 - 10:16 PM

No just an indoor pond. Yeah ok cheers will look into it :)

#4 malawiman85

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  • Joined: 11-December 08
  • Location: Geraldton

Posted 16 December 2016 - 07:09 AM

There are some good threads on here. Have a search if you haven't already. I asked a similar question a few months back and Buccal gave the best advice. If iPhones weren't such a pita I would find the link for you.

#5 ice

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  • Joined: 18-January 07
  • Location: Huntingdale, WA

Posted 16 December 2016 - 07:22 AM

I'd definitely be using a rubber pond liner inside it or at the very least a thick coat of paint on pond liner (the crommelins stuff is good). Also make sure there is a of a lot of external bracing, as 400 gallons is about 1500kgs of water and you don't want that on your living room floor. Draw up a design and maybe have someone who has some experience with these things take a look over it and do the first fill outside :)


Good luck with the project mate!

#6 Peckoltia

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  • Joined: 15-October 04
  • Location: Dianella

Posted 16 December 2016 - 10:11 AM

Get the inside fibreglassed. This will also add heaps of strength to the structure. Not a cheap exercise though. 

#7 Jules

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  • Location: Baldivis

Posted 16 December 2016 - 10:35 AM

there's a bloke who builds these types a ponds and advertises on facebook and gumtree.

something like A2M aquariums or something?

#8 Pattison

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  • Location: Cannington

Posted 09 April 2017 - 05:59 PM

Did you end up finishing the project mate?

#9 pistol712

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  • Joined: 18-January 16
  • Location: St James

Posted 10 April 2017 - 12:36 PM

On youtube search KING OF DIY he has step by step videos on this exact subject

#10 Rodders02

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  • Joined: 08-October 15
  • Location: Freo (but I hate the dockers)

Posted 24 July 2017 - 10:26 PM

Just saw this, na started building it but some cool fish came up for sale so put my money towards them so ended up not having enough money to finish it :ROFL:

Edited by Rodders02, 24 July 2017 - 10:26 PM.

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