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(Dave) wrote in message . com...
(Or How to correctly shim floor joists)

The existing 2x8 floor joists on my 50+ year old home are 7 1/2
inches. The 2x8's I plan to sister next to the old ones are only 7
1/4 inch.

Can someone tell me the approved method for shimming the difference
between the joists.

A 2x8 is 7 1/4" deep. If you sister a new joist to one existing,
there is no need to shim. You'll be nailing sufficien number of nails
(or bolting) so they act as one without the top of the joist being
flush.

Yaofeng