As I get ready to build the sectional benchwork of the layout, I am wondering what the equivalence is between plywood and dimensional lumber.  Typical L-girder construction uses 1x3 or 1x4 dimensional lumber (clear pine or poplar) which is actually 3/4 x 21/2 or 31/2.  I am using nominal 3/4in (23/32) 7 ply plywood acquired on sale at a big box store. 
Would a 3 inch strip be equivalent to a 1x4 for the 8ft dimension of a 2x8ft top? 
(note: I plan on wood for cross members to allow for edge screws.

Hi all,

I am working on a concept layout that involves a very deep urban scene at some point and i would very much appreciate some input based on similar experiences in dealing with accessibility to parts of such scenes. Main Text and plans on the next post.

Many thanks in advance for your replies!

Yannis

Week 2 - 20 weeks remaining

Week 3 - Finishing trackwork

Week 4 - Continue working on Week 3 stuff (eat too much and cycle while the sun is shining!)

Building model trains is, and has been, a lifelong passion.

By definition my hobby is a pastime and not done for income or to please anyone other than myself. That sounds selfish and self centered but really true.

On the other hand I really love to share my efforts with those who understand.  This forum has been that community.

I've been doing some construction on the Yard.  I've been using the Free Mo module standards and Modutrak legs standards to base my construction off of.  I got the module frames together but the legs aren't fitting in the pockets without some level of "persuasion."  I posted a video show what I've gotten done and asking the viewer for some tips or tricks to get the legs to slide a bit better.

The less invasive the suggestion the better!