Buy Titebond II if one bottle has to cover everything you build indoors. Buy Titebond III if the piece will get wet, or if your glue-ups are big enough that you run out of time before you run out of clamps. That second reason is the one nobody puts on the label, and for a lot of woodworkers it matters more than the waterproof rating.
Both are aliphatic resin (PVA) glues from the same maker. Both make a joint stronger than the wood around it in a well-fitted long-grain assembly. Neither is a structural adhesive, neither fills a gap, and neither will save a joint that does not fit.
The three differences, in order of how much they matter
1. Open time — the one you will actually feel
Open time is how long you have between spreading glue and getting the joint closed and clamped. Titebond publishes a longer open time for III than for II, and on a six-board panel glue-up in a warm shop that is the difference between a calm assembly and a scramble with a board half-closed and the glue already skinning over.
If you have ever had a panel that would not quite pull closed, this is almost certainly why. Plenty of people buy III for outdoor furniture, discover the extra working time, and never go back for indoor work either. Our panel glue-up guide walks through the sequence that open time buys you.
2. Water resistance — the one on the label
Titebond II is rated ANSI/HPVA Type II water-resistant. Titebond III is rated ANSI/HPVA Type I waterproof. Those are standardised ratings, not marketing adjectives, and the practical reading is simple:
- Indoors, always dry— Titebond Original is enough. II is cheap insurance.
- Kitchens, bathrooms, a covered porch, anything that gets wiped down— Titebond II.
- Cutting boards, garden furniture, exterior trim, anything washed or rained on — Titebond III.
Note what “waterproof” does not mean: it does not mean the wood is waterproof. A cutting board glued with III and left in a sink will still come apart, because the wood will move far more than the glue line will tolerate. The glue stops being the weak link; it does not stop the wood being one.
3. Glue line color — the one that shows
Titebond II dries a cream color. Titebond III dries noticeably darker — a tan-brown line. On walnut you will never find it. On maple, ash or white oak a squeeze-out line that was not cleaned off properly is visible, and it is visible after finishing, which is when you cannot fix it.
That is the honest argument for keeping II on the shelf even if you own III: pale hardwoods and a dark glue line are a bad combination, and most indoor furniture does not need Type I waterproofing.
What about Titebond Original?
Original is the interior-only grade and the cheapest of the three. It tacks fast, sands cleanly without gumming the paper, and has no meaningful water resistance. For a shop that builds indoor furniture and nothing else it is a perfectly rational default, and it is the pick most owner reviews describe as the one they reach for without thinking.
We also rank Titebond's liquid hide glue below, which is a genuinely different animal: reversible with heat and moisture, so a chair repaired with it can be taken apart again in twenty years. PVA makes that impossible. If you restore furniture rather than build it, that single property outranks everything else on this page.
For the full ranking across brands rather than this one head-to-head, see the best wood glue, which includes the non-Titebond options this page deliberately leaves out.
The four grades, side by side
Published listing specifications for the four Titebond grades ranked above. The water resistance column is the ANSI/HPVA rating the maker publishes, not our judgment.
| Grade | Water resistance | Glue line | Published specifications |
|---|
| Titebond Original | Interior use only | Pale | 16 oz, aliphatic resin, sands cleanly |
| Titebond II Premium | ANSI Type II water-resistant | Cream | 16 oz, interior/exterior |
| Titebond III Ultimate | ANSI Type I waterproof | Dark | 16 oz, longer open time |
| Titebond Liquid Hide | Not water resistant | Amber | 8 oz, reversible with heat/moisture, long open time, no mixing or heating |
Reading the ANSI ratings properly
ANSI/HPVA Type I and Type II are soak-and-boil test classifications for the adhesive bond, not a claim about the finished object. Type I is the more severe of the two. A glue that passes it will hold a bond through water exposure that destroys a Type II bond — and in both cases the wood around the joint is swelling and shrinking while that happens.
So the rating tells you which failure you have removed, not that you have removed failure. For a cutting board, Type I plus a finish regime plus not leaving it in standing water is the whole answer. Type I on its own is one third of it.
Clamp time, cure time and the mistake in between
Clamp time and cure time are different numbers and confusing them ruins joints. Clamp time is how long the clamps stay on; cure time is how long before the joint reaches full strength and can be stressed, machined or put into service. PVA glues reach handling strength long before full cure.
The practical rule that keeps you out of trouble: leave it clamped longer than you think on anything load-bearing, and do not machine a fresh glue line the same hour you made it. A planer or a drum sander taking a pass over a glue line that has not cured will load the abrasive with soft glue and leave a depression you only see under finish.
Temperature is the specification people ignore
Every PVA has a minimum application temperature, and a cold shop is the most common reason a joint that should have held did not. Glue applied below the published minimum does not cure properly — it chalks. If your shop is unheated, bring the glue, the clamps and the wood indoors for a day before a glue-up rather than trusting the joint.
The same goes the other way in summer. A hot, dry shop shortens open time dramatically, which is exactly when Titebond III's longer working window stops being a nice-to-have.
How much glue to put on
Enough to get a thin, continuous squeeze-out line along the whole joint. Less than that and you have a starved joint, which is the failure mode that looks fine and breaks later. Much more than that and you are just making cleanup work, because the excess does not add strength — the bond lives in a film thinner than a sheet of paper.
Wipe squeeze-out with a damp cloth before it sets, or let it go rubbery and pare it off with a chisel. Do not sand it wet: you grind glue into the pores and it shows up as a pale patch when the finish goes on.
Where these numbers come from
The bottle sizes, ANSI water resistance classifications, open time comparisons and glue line colors above are Titebond's own published product information as it appears on the current listings, cited per product in Sources. We have not run soak-and-boil tests, shear tests or open time measurements — we do not have a lab, and our methodology page says so in those words. Prices come from the live price feed.
