Stress Wave Meter
Non destructive stress wave velocity measurements have been used by CAI for the inspection of wood structural members for over 15 years.This equipment is used to measure velocity time of travel in a structural member. Velocity measurements that differ substantially from the theoretical are evidence of possible deterioration.

Full Scale Load Testing of Roof and Floor Trusses
Full scale load testing of structural framing members such as roof and floor trusses have been completed by CAI testing in a load test facility (rack) or by application of construction materials weights such as concrete block shingles or sand. Various test protocal procedures can be developed in accordance with applicable standards and based on respective framing systems.

Steel Sill Tie Foundation Plates
Wood foundation connectors securing the sill plate to foundation are manufactured by a number of manufacturers. CAI has tested these for submission and evaluation by major building code research groups.

Steel Joist Hangers
CAI has conducted testing for manufacturers to determine values for submission to major building code research groups.

Load Testing of Prefabricated Stairs
Manufactured stairs of non-stress grade material frequently require certification by full scale load tests. CAI has performed these tests INSITU and at manufacturing facilities.

Specific Gravity (SG) testing of Structural Lumber
Removal of wood samples from stress grade lumber for specific gravity testing. Samples are marked, matched and cut from thelumber, weighed and dried in a laboratory oven and re-weighed to calculate specific gravity (OD/OD). These tests are performed in order to assign actual known SG values to connectors to be tested

Composite Wood Joist Testing
Testing of Com-Ply wood joist fabricated with same dimensional sizes as standard dimension lumber. Inner core consists of OSB. Top and bottom is laminated with pieces of laminated veneer lumber

Kor-Joist Testing
Testing of joist constructed of 3 pieces of dimension lumber joined with a proprietary assembler which clamps the members in place and fastens them.

Wood I-Beam Testing
Tests were performed on wood beams and joists fabricated in an I-Beam configuration. All members are constructed with dimension lumber.

Testing of Wood Truss Plates
CAI has provided testing of wood truss plate connectors for a number of truss plate manufactuers in accordance with ANSI/TPI standards for testing.

Load Testing conventional Floor Joists Modified for increased stiffness
Conventional floor joist testing to determine deflection and transient floor vibration characteristics. Floor response was recorded with a seismograph and typical methods to excite floor prior to loading.

Testing FRT Treated Truss Web Members
Where deterioration and/or strength loss of some fire retardent treated wood truss web members is suspected truss web members can be tested in-place with the CAI web member tester.

Screw Withdrawal Tests
CAI testing of FRT plywood. Plywood estimated strength loss can be evaluated by the use of screw withdrawal tests made at the site and comparing test values with known values of untreated material.

FRT Plywood Prood Load Testing
FRT plywood w/suspected reduced values can also be evaluated in the filed w/ CAI proof load testing device. ( (This is an alternate method to the screw withdrawal testing). The equipment consists of a load cell supported by a simple beam anchored to framing members below (trusses or joists). A maximum load of 400# is applied.

Lumber and Timber Moisture Recording
Moisture content of lumber and timbers can be evaluated by CAI in the field with an electric resistance moisture meter. Insulated longer pins are used to penetrate lar timbers.