Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Polystyrene Window & Door Moulding

55 results

Inteplast Group Building Products 
5/8-in x 2-1/4-in x 7-ft Finished Polystyrene 327 Casing

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for pricing and availability

4.3
57

Inteplast Group Building Products 
5/8-in x 2-1/4-in x 7-ft Finished Polystyrene 9442 Casing

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for pricing and availability

4.5
66

Inteplast Group Building Products 
7/16-in x 1-3/16-in x 8-ft Finished Polystyrene Drip cap

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for pricing and availability

4.2
64

Inteplast Group Building Products 
9/16-in x 2-1/8-in x 7-ft Finished Polystyrene 6356 Casing

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for pricing and availability

4.5
99

Inteplast Group Building Products 
5/8-in x 3-1/4-in x 8-ft Finished Polystyrene 9444 Casing

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for pricing and availability

4.2
68

TRIMFINITY 
7/16-in x 1-1/8-in x 8-ft Finished Polystyrene Stop

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for pricing and availability

5.0
1

Inteplast Group Building Products 
3/8-in x 1-1/4-in x 7-ft Finished Polystyrene Stop

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for pricing and availability

4.7
15

Inteplast Group Building Products 
3/16-in x 15/16-in x 8-ft Finished Polystyrene Bead

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for pricing and availability

4.5
30