Looking for the least expensive and easy way to turn 3/4 plywood into T & G

[crazy]

The price difference is about $20 per sheet.  That adds up pretty quick.

[DR Buck]

Router with T & G bit set.

[Don P]

screw ~1x4 blocking between sheets in each bay.

[Larry]

Find some place else to buy it?  When I built our house a few years ago I bought 70 sheets from the wholesale hardwood floor supplier and it was cheaper than no T&G from the box stores.  I had to do some work to find them as they don't advertise or solicit business from the DIY crowd.

[yukon cornelius]

I bought a tongue and groove set off eBay for about $30 with free shipping and I got a LOT of use out of them until I got a craftsman shaper. They still work good for projects I don't want to lift onto the shaper.

[Rural]

It was not something I thought of until I saw this post but T&G plywood can either be 'full face' or 'scant face' meaning that one will match up with 24/ 48" centers when laid lenthwise across joists whereas the other will come up with the width of the tongue short each time (a real problem on a longer floor / roof). A regular plywood sheet modified by routing the ends will have this problem and the saving may well be lost in extra cuts and aggravation!

[Planman1954]

Wouldn't you end up losing the 24" of spacing for nailing the plywood to the joists? I guess you could simply rout using the tongue bit on all sides only, and use a spline set into the groove.

[Larry]

You didn't mention what your doing with the plywood.  Can you use "H" clips?

[crazy]

This would be for flooring.  We bought a unit of T & G already but saw the plywood later for 10.98 a sheet.  The T & G was 28 a sheet.  The cheapskate in me got to wondering when I saw the price difference.  I will need to go back with my tale measure.  Thanks.

[Magicman]

T&G Plywood subfloor panels are a much different product from "regular" plywood.  Different manufacturers market it by different labels such as Sturd-I-Floor and PlyBond. 

[Ox]

Cheap and easy?  Those two words usually don't go hand in hand...  :D
Cheap would be a circular saw and a board to be clamped on the plywood.  Over and over again.  It can be done.
Easy would be buying the expensive stuff that's already done.

There's two kinds of currency in this world - time and money.  If you don't have one, you better have the other.

[crazy]

Cheap and easy?  Those two words usually don't go hand in hand...  :D
Cheap would be a circular saw and a board to be clamped on the plywood.  Over and over again.  It can be done.
Easy would be buying the expensive stuff that's already done.

There's two kinds of currency in this world - time and money.  If you don't have one, you better have the other.

Well put.