DE 302-838-6333    MD 410-546-2900

  • Dover Tri-Supply Location

    DOVER LOCATION IS NOW OPEN!

    The doors are officially open at our Dover, DE location! You'll be able to find us on the south side of Dover, directly off Rt. 13. The store is...

  • Geogrid

    Geosynthetics

    In excavation applications, the use of geosynthetic materials are a necessity when minimizing environmental impact and ensuring wildlife safety....

  • Light Tower

    Quad Light Tower

    $400/month! Working after daylight? All of our light towers come standard with four lights ready to light your site....

Happenings

join us at one of our holiday open houses!

December 16th in New Castle, DE
December 20th in Dover, DE
December 21st in...

Dogfish Analog A-Go-Go

The weekend of September 16-18 proved to be an extremely busy weekend for the members of Tri-Supply! On Saturday we had the opportunity to supply...

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