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Cobb Lumber Construction Supplies & Services

Welcome to Cobb Lumber!

We are a family owned business that has been providing services and products to the construction industry since 1978.

Combined, our family has over 90 years of experience in the building materials industry. We service the requirements of professional industry buyers, residential and commercial contractors, home owners and hobbyists.

Dot Spec Sheet

Printable Spec

PROPERTY
TEST METHOD
MINIMUM ROLL

AVERAGE VALUE

MD GRAB TENSILE, LBS
ASTM-D-4632
209 LBS
TD GRAB TENSILE, LBS
ASTM-D-4632
172 LBS
MD GRAB ELONGATION %
ASTM-D-4632
21%
TD GRAB ELONGATION %
ASTM-D-4632
27%
MULLEN BURST, PSI
ASTM-D-3786
310
MD TRAPAZOIDAL TEAR, LBS
ASTM-D-4533
74 LBS
TD TRAPAZOIDAL TEAR, LBS
ASTM-D-4533
66 LBS
UV RESISTENCE, % SR
ASTM-D-4355
80% @ 500 HRS
AOS, US SIEVE #
ASTM-D-4751
40
PERMITTIVITY, (1/SEC)
GAL/MIN/SQ. FT.
ASTM-D-4491
0.20 (S-1)
FLOW RATE
ASTM-D-4491
12.5 GAL/MIN.FT2
 

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Contact our corporate office Matagorda.Island.Inc. Let them know how we are doing.
Toll Free Phone: 888-452-3930 | Phone: 936-254-9901 | FAX: 888-452-3930 | PO Box 806 | Hwy 59 North | Timpson, TX 75975
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