Anatomy of a Flat
Parts of a Platform
Parts of a Step Unit
Lumber Dimensions
Scenic Drawings
100

The TOP and BOTTOM of both a Broadway and Hollywood Flat

What is a RAIL?

100

The name of the 2x4 platform structure made of Rails, Stiles and Toggles that is assembled with 3" screws and glue

What is the FRAME?

100

The FRONT of a Step

What is a RISER?

100

Actual dimensions of 1" x 4"

What is 3/4" x 3 1/2"?

100

Scale drawing of a Birds-eye-view of a theater and set

What is a GROUND PLAN?

200

The SIDE of a both a Broadway and Hollywood Flat?

What is a STILE?

200

Simple or Compression-style supports that allow a finished platform to sit at a desired height above the deck?

What are LEGS?

200

The TOP of a Step

What is a TREAD?

200

Actual dimensions of 2" x 4"

What is 1 1/2" x 3 1/2"?

200

A scale drawing that gives the front view of the set

What is a FRONT ELEVATION?

300

The bracing that ties the two STILES together

What are TOGGLES?

300

A system utilized to reinforce building structures in which diagonal supports intersect the legs to create a strong platform

What is CROSS-BRACING?

300

The SIDE or internal support of a Step

What is a STRINGER or CARRIAGE?

300

Typical thickness of Plywood we use for building Flat framing with

What is 5/8" Plywood?

300

A scale drawing that gives the side view of the set

What is a SECTION VIEW?

400

The hard covering of a Flat

What is the SKIN?
400

⅝” or ¾” Plywood top glued and screwed for structural integrity onto the frame

What is the LID?

400

Standard height of a theatrical step

What is an 8" rise?

400

Typical Lauan thickness for Flat SKINS?

What is 3/16"?

400

A series of drawings sketched by hand showing an audience view of the set

What is a LINE DRAWING?

500

The two additional pieces of structure needed when building a Broadway Flat?

What are the Corner Blocks and Keystones?

500

A platform becomes THIS when casters are added underneath

What is a WAGON?

500

The support frame for a curved staircase that the TREAD and RISER mounts to

What is a TRUSS?

500

Typical plywood thickness used for Platform LIDS?

What is 5/8" plywood?

500

A selection of finished drawings that show color, texture, lighting and tone

What is a COLOR RENDERING?

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