I don't know the measurements, but I've gotten some at Lowes. They are concrete, More pyramid than cube shaped, and there is a place for a 4 by 4 to drop in. No holes for securing, but the weight should keep it stable.
----- Original Message ----- From: Alan & Terrie Robbins To: Blindhandyman Sent: Tuesday, July 20, 2010 4:08 PM Subject: [BlindHandyMan] Cement block footings I have a small seven by seven deck/porch that is attached to the back of my house. We access it via sliding glass doors. It was here when we purchased the house in 1985 but my guess is it has been there since the house was built in 1975. On the one side it is attached to the house via the end joist. The other side or side furthest from the house is supported by two four by fours, one on each corner. These were never sunk into the ground and cemented but rather just set on a cement block even with the surface of the ground. My question is do they sell any type preformed block say 1 foot cube with a pre formed cut out or attachment for a four by four? thanks Al [Non-text portions of this message have been removed]