From Interstate 91 in Vermont:
From I-91 North or South, take exit 8 (Ascutney, VT).
Follow signs toward Claremont, NH.
Cross the Connecticut River into New Hampshire.
Turn right (Rt. 12A South) at the first set of traffic lights.
Follow Rt. 12A South 3.4 miles. 
Customized Structures is on the left.

From Interstate 93 in New Hampshire:
From I-93, take I-89 North to Exit 9 (Warner, NH).
Turn right and follow Rt. 103 west through Bradford, Newbury, Sunapee, Newport and towards Claremont (about 30 miles from I-89).
Follow directions below.

From Eastern NH via Rt. 11/103:
Rt. 11/103 becomes Washington Street in Claremont
Pass K-mart, Burger King, McDonalds, Dunkin Donuts, Walmart, etc...
Keep right, pass the Sunoco station on the right, turn right at the traffic light.
Follow North Street to the end and bear right following signs toward I-91 heading away from the center of Claremont.
Continue toward I-91 under the railroad bridge.
At the first traffic light turn left and follow Rt. 12A South for 3.4 miles.
Customized Structures is on the left.

From South via Rt. 12:
Follow Rt. 12 North through Keene, Walpole and Charlestown, NH.
After entering Claremont, turn left at I-91 bypass (Grissom Lane).
Follow to the end, turn right onto River Road.
Customized Structures is 1/2 mile on the right.