Work out wood glue coverage instantly with clear inputs, formula shown and shareable results.
Glue quantity is the mating surface area times the manufacturer's spread rate in grams per square metre, converted to volume at about 1.1 g per millilitre. PVA needs a continuous film on both faces of a joint, so counting only one face halves the estimate and produces starved glue lines.
Glue quantity
grams = glue surface area m2 x spread rate g/m2
grams = glue surface area m2 x spread rate g/m2. Glue quantity is the mating surface area times the manufacturer's spread rate in grams per square metre, converted to volume at about 1.1 g per millilitre.
PVA needs a continuous film on both faces of a joint, so counting only one face halves the estimate and produces starved glue lines.
Enter total glue surface area, spread rate, bottle size. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.