Who makes scale rulers and where to find them

I want to make my building from craft wood or scrap wood with a thickness of 1/8 or 3/4 thinckness .what would you suggest for HO scale.

I have a  Amtrak pharse 3 cars. but i dont have a amtrak loco ,i only have a f9 Chessie locmotive. Does it make any differce even i dont have a amtrak loco.

what size screws can relace for a n scale Leigh Valley reefer , i lost  my screws. Can anyone help me

I have a union pacific diesel loco. fp-7 from model power that did  have rapido coupler . I was wondering if i can use a knuckle coupler. The engine still runs good. any suggestions on putting a new coupler on it.

The Storage plastic boxes at local hobby shop are 8 1/2 x 3 1/4 x 2"  i  hope this helps.

the boxes are 6 1/2" long and 1 1/2" wide and 2 1/2" high. I hpe thats helps everyone

My local hobby shop has ho plastic box for 40" friegt cars . I was wondering if could use them for f9 engines . any suggestions or should i make my own of of wood.

Theres a Ace hardware in WA and near where i live,what should ask the sales person there

any screws fit 1/16 drill and cant buy hardware stores  or places like lowes

Can i use doorbell wire for my HO layout from track to power pack.

Where can i get #52 drill bit for my rotary tool and what type of file is good for hobby models.