Scale 1:20? How do i work out the scale for my floor plan?

Question

I'm drawing an architectural floor plan for a retail shop and it needs to be on a scale of 1:20. What does that mean exactly my room size is 12m by 8m. How do i work out the scale for all my measurements??

Answer 1

A scale of 1:20 means that something that appears as 1 unit on the plan is 20 units in real life.  In other words, your plan is 1/20 the size of the real room.

Just divide each measurement by 20 to get the size on the plan.

Example:

12m / 20 = 0.6 meters (or 60 cm)

8m / 20 = 0.4 meters (or 40 cm)

Answer 2

Hi:

To help you to understand what a scale is, you need to know what it is:

A scale is a way to express something that is too big or too small into something we can relate to in our measurement of things

Usually is represented in the English System As 1: By some

unit of inches ( or Centimeter in the metric System - For our purposes; the English inches is used here) This is a Reduction Meaning the Scale Model is going to be smaller than the world object it represents

However if it read 4:1 or 4 to 1 than it a Enlargement meaning that the scale model,drawing or plans is going to larger than the real world object it represent this is done to show detail or to help make something that is very small like a wristwatch gear

A scale model is a representation or copy of an object that is larger or smaller than the actual size of the object being represented. Very often the scale model is smaller than the original and used as a guide to making the object in full size. Scale models are built or collected for many reasons.

Professional modelmakers often create models for the below professions:

For engineers who require scale models to test the likely performance of a particular design at an early stage of development without incurring the full expense of a full-sized prototype.

For architects who require architectural models to evaluate and sell the look of a new construction before it is built.

For filmmakers who require scale models of objects or sets that cannot be built in full size.

For salesmen who require scale models to promote new products such as heavy equipment and automobiles and other vehicles.

Hobbyists or amateur modelmakers make die-cast models, injection molded, model railroads, remote control vehicles, wargaming and fantasy collectibles, model ships and ships in bottles for their own enjoyment.

Scale models can also be objects of art, either being created by artists or being rediscovered and transformed into art by artists.

Okay with that out of the way

So let see what this mean For example

A 1:87 scale means that for every 1 inch on the ruler or on a scaled drawing plan or a 1/87 scale model means that it will be 87 inches on the real world object size. For example:

A 1: 87 model of a train water tower measures 2 inches high. How big or high is the Real world train tower be?

Answer :

Our scale Model train water tower is 2 inches

So

2 *87 = 174 inch of the real world train tower or 174/12 = 14.5 feet or 14 feet 6 inch high

A Real world forest ranger lookout tower measures 150 feet high and you want make a 1:174 scale model of it. How big will the Scale model of it be?

Answer

150 feet *12 = 1,800 inches ( This is done to get into real world inches)

Now our scale is 1 scale inch of model equals 174 real world inches So do the following :

1800/174 = 10.3448 inches or 10 and 5/16 inches

So our Scaled model of a Forest Ranger Lookout

Tower will be 10.3448 inches tall

Let say a House is 40 by 60 feet long and we are are make a 1:12 scale Model of it . How big will the scale model of the house be :

Okay we know the house is 40 feet by 60 feet So:

40*12 = 480 Real world inches

and

60*12 = 720 real world inches

And

480/12 = 40 Scaled inch or 40 inches on the ruler or 3 ft ,4 inches

720/12 = 60 Scale inches or 60 inches on the ruler or 5 ft

So our Scale house will be 40 inches by 60 inches or 3 ft, 4 inches by 5 ft

Notice something?

Anytime you have a 1/12 scale, the feet become the same as the inches and vice vera for the scaled object to the real world object

for example a 3 foot rod will be 3 inches on the scale model of it

or 2 inches on a scaled beam in 1/12 scale will be a 2 foot real world beam

And that all there is to it .

For other type of scale sizes visit this website:

http://en.wikipedia.org/wiki/Scale_model

I hope this helps

for 12 m by 8 m

do the following convect it to cm  by m * 100 = cm  first :

8 *100 = 800 cm

12 * 100 = 1200 cm

divided 20  to get the model measurements

so:

800 /  20 = 40 cm

1200  / 20 = 60 cm  

It means that a 12 m by 8 m real world room.,  That a scale model of it will be 60 cm by 40 cm  

( Multiply Meters by 3.2808333 to get it to feet ( U.S) )

or 12 m * 3.28083333= 39.37 feet or  39 feet  4 7/16 inch

8 m  * 3.28083333 = 26.24666666664 or 26 feet 2 15/16 inches

the model will be

39.37 / 20  =    1.9685 feet or  23.622 inches  =   23  5/8 inches

26.24666666666 = 1.31233333333 feet or 15.748 inches =  15 3/4 inches

I hope this helps

Answer 3

a scale of 1:20 means that for each cm on your floor plan the real room measure 20 cm. So you need to divide your actual room measurements by 20 to get your floor plan measurements.

12m/20 = 1200cm/20 = 60 cm

8m/20 = 800cm/20 = 40cm

Your drawing should be 60cm by 40 cm