Wood Glue Coverage Calculator
Estimate how much wood glue you need for any number of joints.
Select glue type and joint dimensions to get ounces, ml, and bottle count.
The Importance of Glue Coverage
Wood glue is one of the most reliable fasteners in woodworking — when applied correctly. The key word is “correctly.” Too little glue leaves starved joints that fail under stress. Too much glue (squeeze-out) wastes product, causes cleanup headaches, and can seal the wood surface, preventing stain from penetrating evenly in glued areas. The correct coverage rate is the sweet spot between these two failures.
Recommended Coverage Rates
The standard woodworking recommendation is to apply glue to both mating surfaces of a joint. Coverage should be approximately 6–8 square inches per milliliter of glue (150–200 sq in per fluid ounce) when spread as a thin, even coat. A thin, translucent coat — not a thick, opaque bead — is ideal. Use a brush, roller, or notched spreader to achieve even coverage without thick puddles.
PVA Glue (Titebond I)
PVA (polyvinyl acetate) glues like Titebond Original are the most widely used wood glues. They are water-based, easy to clean up with water, and provide very strong glue lines in interior applications. PVA glue is NOT waterproof — it should not be used for outdoor furniture or anything exposed to moisture. Open time (working time) is approximately 5–10 minutes; clamp time is 30–60 minutes; full cure is 24 hours.
Titebond II (Water Resistant)
Titebond II is cross-linking PVA with water resistance suitable for outdoor furniture that is not constantly wet. It passes the ANSI/HPVA Type II water resistance test. Coverage and working time are similar to Titebond I, but it requires longer clamping in cold temperatures.
Gorilla Glue (Polyurethane)
Polyurethane glue foams as it cures, expanding to fill gaps. It is fully waterproof, bonds wood to wood, wood to metal, stone, and many other materials. Use sparingly — it expands 3–4× and excessive application causes messy cleanup. Clamp time is 1–2 hours; full cure is 24 hours. Slightly moisten one surface to activate the glue.
Epoxy
Two-part epoxy provides the strongest bond of any woodworking adhesive. It is completely waterproof, resists solvents, and can fill large gaps. Epoxy is typically used for specialty applications: repairs, end-grain joints, and bonding difficult species like oily tropical hardwoods (teak, ipe). Coverage is similar to other glues but cost is higher.