Glue

Titebond III Ultimate glue.

Re: Glue

Barry Irby

Look at Locktite PL 400 construction adhesive in a caulking gun tube.

Re: Glue

John K Jordan

I like construction adhesive too, clamped moderately. But I really like carriage bolts, the nuts countersunk if necessary.

I prefer dry PT for something like that. You can sticker and wait, find pieces that were on the top of the bundle at the lumber yard, or best, buy KDAT (kiln dried after treatment). Kdat is usually better quality.

Do you already have the 2x8s?

Keith Newton

Why would you choose to glue up rather than by 4x6 or 4x8s?

Make sure that whatever you choose, is treated for ground contact, which the 4x lumber is more likely to have. Most of the big box stores have 4x4 which almost all have the pith surrounded by juvenile wood that has enough pitch to prevent the absorption of the chemicals, this will lead to quicker decay. But I can often find good 4x6 which was cut from a better part of the log, so take a look at that first.

Seems like your making life harder for poorer results than need be. IMHO

Re: Titebond III Ultimate glue.

Steve jenkins

If moisture content is above16% the glue probably won’t cure. Titebond recommends polyurethane glue and clamp to prevent foaming.

Re: Glue

Don Stephan

Screws designed not to be affected by the treatment.

I was wondering the same....

Bill Tindall, E.Tn.

6 x 6 posts are readily available anywhere. I would not be assembling this post from 1 1/2" thick lumber unless there is some factor I don't know. Depending on orientation the 6 x 6 will be substantially stiffer or not quite as stiff. But in any case I can't see it would blow over.