







Fitting a sofa through a doorway 
20100406 

From Yvonne: Hi, I would be most grateful if you could help me, because I have no idea how to work this out! I am moving from a house to a flat, and the doors in the flat are 70 cm wide. I have a sofa 88 x 88 x 215. Will it go through the door if we tip it sideways at an angle?
Thanks, Yvonne Beck Answered by Robert Dawson. 





The area of an arched transom 
20080928 

From Ivan: What is the formula for figuring out the square footage of arched transom windows & doors? Answered by Harley Weston. 





A 5 digit, pushbutton door 
20060620 

From George: We have a 5 digit, pushbutton door look (15). How many combinations are possible without repeating a number in a 3 digit entry code? Answered by Stephen La Rocque. 

