Scratch-Build a Two-Story Trackside Structure in HO Scale

Two story balsa Maple Valley Supply Co building h finished.

This is the Maple Valley Supply Company. It sits on the line that brings passengers from Midtown to Maple Valley on The Old General. The two-story structure is scratch-built in balsa. The windows and doors are plastic models purchased at a model railroad swap meet.

I drew plans for the structure on card stock. I built each of the walls by cutting, gluing and pinning balsa pieces on the wax-paper covered plans.

I love the way the framing looks on the wall interiors.

The gables and the front wall are two stories tall. The back wall is off-set by a scale 12 inches, so the walls were built separately. The end rooms are single story.

Balsa two story building without roof.
Two story balsa structure.

The siding pieces are cut from 1/32″ balsa sheeting. Since I have stud framing, it is easy to cut and glue individual lengths of siding for a more authentic appearance. Each siding piece is 3mm tall. Some modelers stain the balsa before gluing, but I choose to paint the finished structure.

Balsa building with roof trusses and decking.

I build roof trusses and individually glue them to the walls. I admit it’s difficult to build a bunch of balsa trusses that are exactly the same, but I get pretty close. As my middle school band teacher used to say, “It’s close enough for jazz.”

When the roof truss glue is dry, I apply individual planks the same way I attach the wall siding. My roof planks are all the same length. I don’t apply any covering other than paint.

The loading dock on the front of Maple Valley Supply Company is approximately 3 scale feet high and 4 feet deep with a ramp at the end. There is a double door on the far end and a single door in the center. The small storage room on the end has two small windows and a door.

Side view of balsa Maple Valley Supply Co outside town of Maple Valley.

I use acrylic paint diluted with water and mixed with a small amount of matte medium. With a little more scenery work to do around the structure, I think the Maple Valley Supply Company is ready for business.

2 thoughts on “Scratch-Build a Two-Story Trackside Structure in HO Scale

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