Filling Knots for Glue-Up

[Justin Chen]

I'm working on glueing up a top for my bench. There are a few knots that don't go all the way through the wood but have some holes, I'm curious if I should fill these in with epoxy before glue-up or just leave it be?

I'm leaning towards leaving it be since I'm gluing up ~4" T x 72" L x 1.25" W pieces and should be enough surface area for a good joint.

[Jim Chan]

I'm working on glueing up a top for my bench. There are a few knots that don't go all the way through the wood but have some holes, I'm curious if I should fill these in with epoxy before glue-up or just leave it be?

I'm leaning towards leaving it be since I'm gluing up ~4" T x 72" L x 1.25" W pieces and should be enough surface area for a good joint.

If they're on the inside faces of the lamination, I wouldn't bother.

[Van Huskey]

I think you hit on the key, as long as no knot is big enough to effect the glue joint enough to cause delamination or none have voids that are close enough to the top surface when the glue up is finished (enough to allow the wood closer to the top to dent easily) I wouldn't worry about it.