Home>More | More in Trim

Splicing Molding

A single length of molding spanning a wall is best, but when you have to use a second piece, use this technique to hide the gap

Splicing molding
Illustration by Narda Lebo
1 ×

 

When installing moldings—particularly baseboard, shoe, crown, and chair rail—it's always better to use a single length to span the room. Unfortunately, that's not always possible or practical.

When you do have to splice together molding pieces, use scarf joints, not butt joints. Scarf joints are much less conspicuous and, if the moldings should shrink — and they almost always do — a revealing gap won't appear, as it would with a butt joint.

To make a scarf joint, bevel-cut the molding ends to 45 degrees, smear them with a little carpenter's glue, then secure the joint with 1 ½-inch (4d) finishing nails.

Splicing Molding
Illustration by Narda Lebo
Splicing Molding

When installing moldings—particularly baseboard, shoe, crown, and chair rail—it's always better to use a single length to span the room. Unfortunately, that's not always possible or practical.

When you do have to splice together molding pieces, use scarf joints, not butt joints. Scarf joints are much less conspicuous and, if the moldings should shrink — and they almost always do — a revealing gap won't appear, as it would with a butt joint.

To make a scarf joint, bevel-cut the molding ends to 45 degrees, smear them with a little carpenter's glue, then secure the joint with 1 ½-inch (4d) finishing nails.

Sponsored Stories

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.