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Routes 10 & 202 • Southwick, MA

Your Hometown Supplier of Lumber, Building Materials & Hardware Since 1976

Newest Items

Simpson Strong Tie Outdoor Accents

Outdoor Accents is a new line of decorative hardware, featuring ornamental wood connectors and fasteners. Now you can bring both beauty and strength to outdoor living structures. This is corrosion-resistant hardware accommodates nominal and rough lumber sizes.

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Benjamin Moore® REGAL® Select Exterior Paint‎

Durable finish resists fading, cracking and peeling so your home’s exterior looks freshly painted for years to come. Mildew resistant even in humid conditions. Engineered with Gennex® Color Technology.

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Coast of Maine Stonington Blend Platinum Grower's Mix

An OMRI listed, complex “super soil” designed for high performance growing in containers and large pots. You will not find a better soil for your tomatoes! Growers have also discovered the tremendous results of using Coast of Maine Stonington Blend Growers Mix!

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Wet & Forget Outdoor Hose End Rapid Application

The new Wet and Forget Hose End makes outdoor cleaning quick and easy. The much-awaited hose end was designed with a proprietary nozzle for higher reach and more coverage per bottle. It attaches directly to your hose & sprays up to 30 feet, allowing you to clean hard-to-reach areas.

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Drive-In Service

Drive up to the lumber yard for easy order pick-up.

How To

PLUMBING & ELECTRICAL

At Interstate Building Supply you can find:
We carry stove pipe black & galvanized plus we carry metal bestus pipe • A large selection of stems and faucet parts • Piping for both rough and finish plumbing • Heating & ac duct work • Toilets and repair parts • Vanities and sinks
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AUTO & HOUSEWARES

At Interstate Building Supply you can find:
• A large selection of car cleaning chemicals • Tow hitches & Fuses and bulbs
• RV anti freeze & wiper cleaner • A large selection of canning jars & accessories
• Storage totes & drawers • Appliance repair parts
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