Plywoods

What’s the difference between marine plywood and regular plywood?

admin — Fri, 18 May 2012 12:49:13 +0000

I’m going to build a little boat, nothing that serious. I want to go cheap. Will regular plywood hold up when I use the boat in water? Or will the regular plywood decay, crack or something else not good happen if I use it too long in the water? Thanks.

Girly Brains has given you the correct reply to your question with the small proviso that in Florida, where you are, a timber supplier may not be familiar with British Standard BS 1088. Can I suggest that you contact the technical department of the Roddis Company in Marshfield, Wisconsin. They are without doubt one of the top ten companies worldwide in this field.

I’m building a canoe out of plywood but I don’t have much money. How can i seal it for cheap?

admin — Thu, 03 May 2012 13:36:17 +0000

I’m building a canoe for someone out of plywood. Unfortunately, all the guides i see tell me to use a marine epoxy, and I can’t seem to find anything that would cover a 14′ canoe for cheap. Any suggestions on how i could bypass marine epoxy or find some cheap marine epoxy?

I can’t emphasize enough that the advice you have, by your own account received, is sound. But if you really do mean ‘cheap’, as in ‘free’ (almost, if not actually even) then buy a small enough amount of this epoxy to do the vulnerable parts – the ‘end-grains’ (edges of the plywood), work outwards from these to use up anything you have left and then – I’m serious here, if you really do mean ‘cheap’ – cover the faces of the plywood with chip oil!

Eg: rapeseed oil. Etc: Cooking oil.

After the epoxy has set, degrease it and lightly sand it and then apply the said oil to all.

It is better if you use oil that has been used first for cooking, and therefore boiled, as it will set into a ‘varnish’ much more easily and more quickly. (Which is even better – even cheaper!)

But if you do, then don’t try anything else later because it will not ‘key’ to the oily varnish that is the result. Just use the same again. For ever more.

It sets into a really hard ‘varnish’, and may be easily overcoated with more, later, as required. (Nothing more than a wash down with clean water and left to dry prior to overcoating).

And it is extremely water-repellant.

Which, if I take the term ‘seal’ to be the operative word here, is what you want.

I know of someone who used this technology to seal all the interior faces of the hull-planking of a 38 foot motor boat. It hardened up and endures to this day.

My only question is: How cheap to you want to go?

What is a fair price to lay down sub-flooring that requires about 5 sheets of plywood and cross support studs?

admin — Sun, 26 Feb 2012 01:49:33 +0000

And also demolition of old sub-floor?

You are paying for the materials and get rid of old materials. If so I would say labor only 600 to 800 bucks at 25 bucks an hour a carpenter may be faster but tend to over charge and usually they are 40 an hour after all is sad and done. And you can not get a Handy man for 10 bucks an hour unless you found an incompetent one or an illegal that you paid cash ( never to find them again for a guarantee). I figure that to be 3 days work at 10 bucks an hour that is 240 bucks. That would hardly even cover gas to pick up supplies and to get to the job. Now materials 1/2 plywood around 30 buck ( cheaper if you were to use press board) each studs 2.50 each. 4 yard garbage drop off and pick up 400 depending on where you live . I am a maintenance man and do handy man work on the side I would not work for 10 bucks an hour. I could make that at Mc Donald’s. If William B is a maintenance man and would work for 10 an hour on his off time what is he making at his job. I need at lest 1 1/2 times what I make at work other wise I would just work overtime if I needed the extra money. I don’t work Handy man jobs to give someone a deal or because I want to be a nice guy. I do it for the money

Plywood is sold in rectangle sheets 4 feet wide and 8 feet long. How many 4×8 sheets of plywood are needed…?

admin — Thu, 02 Feb 2012 05:30:20 +0000

Plywood is sold in rectangle sheets 4 feet wide and 8 feet long. How many 4×8 sheets of plywood are needed to completely cover a rectangle shaped floor measuring 16 feet by 12 feet. 6 sheets. 4 x 8 =32 … Continue reading →

How much does a 1 piece- 18mm thick x1200mm x 2400mm Marine Kiln Dried Plywood weigh?

admin — Sat, 28 Jan 2012 08:00:10 +0000

From 25kg to 39kg depending on grade

How much does a 18mm thick Marine Plywood weighs?

admin — Mon, 16 Jan 2012 07:03:09 +0000

sorry but you would have to know the moisture content to get an answer, and that will change according to humidity.

DIY plywood trailer ramp…?

admin — Fri, 06 Jan 2012 09:51:46 +0000

I am trying to make a 2′ x 4′ ramp for my utility trailer out of plywood. Weight is a concern for me but I think this piece will be fine.

2′ will be wide enough to push my bike or for the use of a dolly for other stuff. 4′ will be long enough for a comfortable angle of ascent.

This ramp will also act as the back gate to the trailer when turned over.

I just need to know if a 3/4 inch plywood (maybe birch) will be strong enough to handle driving up my motorcycle weighting approximately 400-450 lbs.

thanks

Doubt it, but Home Depot or Lowes will have 48" long pieces of 1" angle iron that you can drill and screw on the 48" edges of your plywood that should suffice. The 400 pounds of the motorcycle will be on one edge and your walking up the motorcycle on the other edge will be about 600 pounds up the ramp. If you ride instead of walk, the bike+you will be on the center of the ramp and I would add another piece of iron up the center.

Information on certain man-made boards? Plywood, Block/Chipboard and MDF!?

admin — Wed, 04 Jan 2012 01:57:08 +0000

So yeah, it’s for a piece of homework. I got all the Softwoods and Hardwoods covered, but I need help on Man-Made Boards.

The costs bit isn’t necessary, but would help as an extension ;D

Thank-you!

see http://www.diydata.com/materials/manmadeboard/manmadeboard.php you would need to contact for prices I can only get UK£ prices.
hope that helps

How many 4×8 sheets of plywood are needed to cover a rectangle shaped floor measuring 16 ft by 12ft?

admin — Fri, 30 Dec 2011 03:03:45 +0000

You will need at least six… perhaps seven if the room is any larger than 16X12

The method that you use to attach the ply will depend upon the type of subfloor or joist system. If you’re attaching to a common 16 or 24" joist system below, you’ll nail on 8" centers on the perimeter and 12" in the field. If you want, you can apply liquid nails to help prevent ‘squeeks’ in the future. No need to screw if you use the proper nails, and are covering with a decent floor covering.

Good luck

Where can I get marine plywood to build an aquarium?

admin — Sun, 25 Dec 2011 06:46:11 +0000

Serious, helpful answers please. And it’d help if this was in the Minnesotan Metro Area, since shipping would be a pain.
I saw that marine plywood place, but on closer searching it looks like they only do stuff for boats. And I can’t ever seem to find the phonebook, meh.

Have you used your telephone book? It should be available – we have it here in the desert where there is no water.

I googled it and found this

Midwest Marine PlywoodMidwest Marine Plywood
4340 County Road 92
Saint Bonifacius, MN 55375
(952) 446-9611