Square Stock

Shop our S4S (Surfaced Four Sides) square stock in primed finger jointed pine & MDF — a versatile, straight-edged board used for window furring, jamb extensions, casing, and baseboard applications. Clean, stable, and paint-ready right out of the box.

Surfaced four sides for a smooth, consistent finish on all edges
Ideal for window furring and jamb extensions
Doubles as casing or baseboard trim when needed
Primed finger jointed pine — dimensionally stable and ready to paint

Casing
Complete your interior with our collection of casing moulding in primed MDF...

Casing
Baseboard
Complete your interior with our collection of baseboard moulding in primed MDF...

Baseboard
Square Stock
Shop our S4S (Surfaced Four Sides) square stock in primed finger jointed...

Square Stock
Crown Mouldings
Shop our Crown Mouldings in primed MDF and finger jointed pine —...

Crown Mouldings
Headers
Complete your interior trim package with our collection of header moulding in...

Headers
Stools & Stops
Shop our Stools & Stops in primed MDF and finger jointed pine...

Stools & Stops
Prefinished Mouldings
Polar White Shop our Prefinished Mouldings — ready to install straight out...

Prefinished Mouldings
Panel Mouldings
Shop our Panel Mouldings in primed MDF and finger jointed pine —...

Panel Mouldings
Chair Rail
Shop our Chair Rail Mouldings in primed MDF and finger jointed pine...

Chair Rail
Plinth & Corner Blocks
Shop our Plinth & Corner Blocks in primed MDF and finger jointed...

Plinth & Corner Blocks
Shiplap
Shop our Shiplap in primed MDF and finger jointed pine — the...

Shiplap
Quarter Round & Cove
Shop our Quarter Round & Cove Mouldings in primed MDF and finger...

Quarter Round & Cove
Shoe Mouldings
Shop our Shoe Mouldings in primed MDF and finger jointed pine —...

Shoe Mouldings
Miscellaneous
Shop our Miscellaneous Mouldings collection — a curated selection of specialty trim...

Miscellaneous