First Step:
The first thing you need to do is find the center of your paper. To do this, just measure half the length of your paper and draw a horizontal line. Then find half the width and draw a vertical line. Draw a dot/circle where they meet and erase excess markings. This now becomes your vanishing point(VP).
Second Step:
Draw an even square/rectangle around your VP. Keep in mind that this shape becomes the back wall of the room.
Third Step:
Draw a line from one inner corner of your box to the one opposite it. Repeat for the remaining two corners.
Line your ruler up with one of the diagonal lines, then continue each end of the line until it reaches the edge of your paper. Repeat for the other diagonal line. Erase the diagonal lines that are inside your box. You then will have a box with four diagonal lines on the outside. If done correctly, you now have a layout for your room.
Fourth Step:
Now, lets start with a dresser. Put your pencil somewhere on a bottom diagonal line(I would say around the middle of the line). From this spot, draw a line up, then a line horizontal toward the other diagonal line. These lines shouldn’t be drawn to high or too far left/right, depending on which diagonal you chose.
Finish drawing the rest of the box and erase the diagonal line in the box. Resulting in this:
Now, Draw a line from each corner to the VP(never draw a line from the farthest corner from the VP for it will be hidden behind the object). These lines going to the VP are receding lines.
Find the receding lines that are coming from the top two corners of the small box. Draw a horizontal line connecting the two lines. The spot where the receding and horizontal line meet(on the side closest to the middle of the paper), draw a vertical line down to the other receding line. Now erase the remaining receding lines from where you drew to the VP and any marks inside your box. Resulting in this:
Fifth Step:
It’s time for one last step, the window. On one wall of your room, draw two vertical lines parallel to each other. The distance separating them are up to you. First, draw a receding line from the line farthest the VP going to it. Repeat for the other end of the same line. If the inner vertical line was long enough, you should now have a rectangle on your wall. Erase extra lines not needed and excess receding lines. Resulting in this:
Sixth and Remaining Steps:
Now, it’s your turn to figure the rest out.
Sources:
Drawing photos courtesy of yours truly, Chris~Anonymous