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National Lumber

Construction / Lumber

245 Oakland St,
Mansfield, MA 02048

(508) 337-8020

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National Lumber Home Centers and Lumberyards are located in Berlin, Gardner, Mansfield, New Bedford, Newton, and Salem in Massachusetts, Boscawen in New Hampshire, and Warwick in Rhode Island.


National Lumber also has a custom millwork division, National Millwork, located in Mansfield, as well as our truss design and manufacturing center, Reliable Truss, in New Bedford. Also, our installed insulation division, Pro Insulators, is available from any of our locations.

Business Hours

Monday 6:30 AM - 5:00 PM

Tuesday 6:30 AM - 5:00 PM

Wednesday 6:30 AM - 5:00 PM

Thursday 6:30 AM - 5:00 PM

Friday 6:30 AM - 5:00 PM

Saturday 8:00 AM - 3:00 PM

Sunday Closed